How to optimize the production process of soft polyurethane foam using DMDEE bimorpholine diethyl ether: from raw material selection to finished product inspection

?Optimization of soft polyurethane foam production process using DMDEE dimorpholine diethyl ether?

Abstract

This article discusses in detail how to optimize the production process of soft polyurethane foam using DMDEE dimorpholine diethyl ether. From raw material selection to finished product inspection, the application of DMDEE in polyurethane foam production and its impact on product performance is comprehensively analyzed. The article covers the chemical characteristics, mechanism of action, raw material selection standards, production process optimization, finished product inspection methods and practical application cases of DMDEE. Through systematic research and analysis, this article aims to provide scientific basis and practical guidance for the production of soft polyurethane foam to improve product quality and production efficiency.

Keywords
DMDEE; dimorpholine diethyl ether; soft polyurethane foam; production process; raw material selection; finished product inspection

Introduction

Soft polyurethane foam is widely used in furniture, car seats, mattresses and other fields due to its excellent elasticity, comfort and durability. However, traditional production processes have some problems, such as difficult to control the reaction speed and unstable product quality. As a highly efficient catalyst, DMDEE dimorpholine diethyl ether can significantly improve the production process of polyurethane foam and improve product quality. This article will discuss in detail how to use DMDEE to optimize the production process of soft polyurethane foam from the aspects of raw material selection, production process optimization, finished product inspection, etc.

1. The chemical properties of DMDEE dimorpholine diethyl ether and its role in the production of polyurethane foam

DMDEE (Dimorpholine Diethyl Ether) is a highly efficient polyurethane catalyst with unique chemical structure and physical properties. Its molecular formula is C12H24N2O2 and its molecular weight is 216.33 g/mol. DMDEE is a colorless to light yellow transparent liquid with a slight ammonia odor, boiling point of about 250°C and flash point of 110°C. Its density is 1.02 g/cm³, has a low viscosity and is easy to mix with other raw materials. DMDEE is stable at room temperature, but may decompose under high temperature or strong acid and alkali conditions.

In the production process of polyurethane foam, DMDEE is mainly used as a catalyst, and its mechanism of action is mainly reflected in the following aspects: First, DMDEE can significantly accelerate the reaction between isocyanate and polyol, shorten the reaction time, and improve production efficiency. Secondly, DMDEE has a selective catalytic effect, which can preferentially catalyze the reaction of isocyanate with water to form carbon dioxide gas, thereby forming a uniform bubble structure in the foam. In addition, DMDEE can also adjust the pH value of the reaction system, optimize reaction conditions, reduce the occurrence of side reactions, and improve product quality and stability.

Special applications of DMDEE in polyurethane foam production include: In formula design, the amount of DMDEE is usually added to polyols0.1% to 0.5% of the weight, the specific dosage must be adjusted according to production conditions and product requirements. During the production process, DMDEE is usually used in conjunction with other catalysts (such as amine catalysts) to achieve an optimal reaction effect. By rationally using DMDEE, the physical properties of the foam can be effectively controlled, such as density, hardness, elasticity, etc., and meet the needs of different application fields.

2. Raw material selection and formula design

In the production of soft polyurethane foam, the selection of raw materials and formulation design are key factors that determine product quality and performance. The main raw materials include polyols, isocyanates, catalysts, foaming agents, stabilizers and flame retardants. The selection of each raw material must be optimized according to the performance requirements of the final product.

Polyols are one of the main components of polyurethane foams, and their type and molecular weight directly affect the hardness, elasticity and durability of the foam. Commonly used polyols include polyether polyols and polyester polyols. Polyether polyols have good hydrolysis stability and low temperature flexibility, and are suitable for the production of high elastic foams; while polyester polyols have high mechanical strength and heat resistance, and are suitable for the production of high hardness foams. When choosing a polyol, parameters such as its hydroxyl value, molecular weight distribution and functionality need to be considered.

Isocyanate is another key raw material. Commonly used isocyanates include TDI (diisocyanate) and MDI (diphenylmethane diisocyanate). TDI has high reactivity and is suitable for the production of low-density foams; while MDI has high mechanical strength and heat resistance, is suitable for the production of high-density foams. When choosing isocyanate, factors such as NCO content, reaction activity and toxicity need to be considered.

Catalytics play a crucial role in the production of polyurethane foam. As a highly efficient catalyst, DMDEE can significantly accelerate the reaction between isocyanate and polyol, shorten the reaction time and improve production efficiency. In addition, DMDEE also has a selective catalytic effect, which can preferentially catalyze the reaction of isocyanate with water to form carbon dioxide gas, thereby forming a uniform bubble structure in the foam. In formula design, the amount of DMDEE is usually 0.1% to 0.5% of the weight of the polyol, and the specific amount needs to be adjusted according to production conditions and product requirements.

Foaming agents are important factors affecting foam density and structure. Commonly used foaming agents include water, physical foaming agents (such as HCFC, HFC) and chemical foaming agents (such as ammonium bicarbonate). Water is a commonly used foaming agent that reacts with isocyanate to form carbon dioxide gas and forms foam structure. Physical foaming agents generate gases through evaporation to form foam. When choosing a foaming agent, it is necessary to consider factors such as its foaming efficiency, environmental protection and cost.

Stablers and flame retardants are important additives to improve foam stability and safety. Stabilizers can prevent foam from collapsing during molding, and commonly used stabilizers include silicone surfactants. Flame retardants can improve the flame retardant performance of foams. Commonly used flame retardants include phosphorus-based flame retardants and halogen-based flame retardants. existWhen choosing stabilizers and flame retardants, factors such as their compatibility with raw materials, added amount and environmental protection should be considered.

In formula design, various raw materials need to be reasonably selected and matched according to the performance requirements of the final product. For example, when producing high elastic foam, high hydroxyl value polyether polyol and TDI can be selected, and an appropriate amount of DMDEE catalyst and water foaming agent can be added; when producing high hardness foam, high hydroxyl value polyester polyol and MDI can be selected, and an appropriate amount of DMDEE catalyst and physical foaming agent can be added. By optimizing the formulation design, the physical properties of the foam such as density, hardness, elasticity and durability can be effectively controlled to meet the needs of different application fields.

3. Production process optimization

In the production process of soft polyurethane foam, optimization of production process is the key to improving product quality and production efficiency. As an efficient catalyst, DMDEE plays a crucial role in the optimization of production process. The following will discuss in detail how to use DMDEE to optimize the production process from key steps such as mixing, foaming, and maturation.

Mixing is the first step in the production of polyurethane foam. Its purpose is to evenly mix raw materials such as polyols, isocyanates, catalysts, foaming agents, stabilizers and flame retardants. During the mixing process, the amount of DMDEE added and mixing speed have a significant impact on the reaction rate and foam structure. Generally, the amount of DMDEE is added to 0.1% to 0.5% by weight of the polyol, and the specific amount needs to be adjusted according to production conditions and product requirements. The mixing speed should be controlled within an appropriate range. Too fast or too slow will affect the mixing effect and reaction rate. By optimizing the addition amount and mixing speed of DMDEE, uniform mixing of raw materials can be achieved and reaction efficiency can be improved.

Foaming is the core step in the production of polyurethane foam. Its purpose is to generate carbon dioxide gas through chemical reactions to form foam structures. During the foaming process, the selective catalytic action of DMDEE can preferentially catalyze the reaction of isocyanate with water to form carbon dioxide gas, thereby forming a uniform bubble structure in the foam. Foaming temperature and time are important factors affecting the foam structure. Generally, the foaming temperature is controlled between 20°C and 40°C, and the foaming time is controlled between 1 and 5 minutes. By optimizing the addition amount and foaming conditions of DMDEE, the density and structure of the foam can be effectively controlled and product quality can be improved.

Mature is the next step in the production of polyurethane foam, and the purpose is to completely cure the foam by heating, improving its mechanical properties and stability. During the maturation process, the amount of DMDEE added and the maturation temperature have a significant impact on the curing speed and performance of the foam. Typically, the maturation temperature is controlled between 80°C and 120°C and the maturation time is controlled between 1 and 3 hours. By optimizing the addition amount and maturation conditions of DMDEE, the curing speed of the foam can be accelerated and its mechanical properties and stability can be improved.

In actual production, adjustments and optimizations are also required based on specific equipment and process conditions. For example, in a continuous production line, the originalThe conveying speed and mixing ratio of the material ensure the stability of the reaction system; in the batch production line, the raw material usage and reaction time of each production need to be controlled to ensure the consistency of product quality. Through the system’s process optimization, the efficient and stable production of soft polyurethane foam can be achieved, meeting the needs of different application fields.

IV. Finished product inspection and quality control

In the production process of soft polyurethane foam, finished product inspection and quality control are key links to ensure product performance and safety. Through systematic inspection methods and strict quality control measures, the physical, chemical and safety of the product can be effectively evaluated to ensure that it complies with relevant standards and application requirements.

Physical performance inspection is an important means to evaluate the quality of polyurethane foam, mainly including indicators such as density, hardness, elasticity, permanent compression deformation and tensile strength. Density is an important parameter for measuring the quality of foam. It is usually measured by the weight method, that is, the weight of a foam per unit volume is measured. Hardness is an important indicator to measure the softness of foam. It is usually measured by a hardness meter. Commonly used hardness units include Shore hardness and indentation hardness. Elasticity is an important indicator for measuring the rebound performance of foam. It is usually measured by a rebound meter to measure the rebound height of the foam after being impacted. Compression permanent deformation is an important indicator for measuring the durability of foam. It is usually measured using a compression permanent deformation meter to measure the degree of recovery of the foam after a long period of compression. Tensile strength is an important indicator for measuring the tensile properties of foam. It is usually measured by tensile testing machines to measure the high stress of the foam during the tensile process.

Chemical performance inspection is an important means to evaluate the stability and safety of polyurethane foam, mainly including hydrolysis resistance, heat resistance and aging resistance. Hydrolysis resistance is an important indicator to measure the stability of foam in humid environments. It is usually measured by humidity and heat aging test to measure the performance changes of foam in high temperature and high humidity environments. Heat resistance is an important indicator to measure the stability of foam in high-temperature environments. It is usually measured by thermal aging test to measure the performance changes of foam in high-temperature environments. Aging resistance is an important indicator to measure the stability of foam during long-term use. UV aging test is usually used to measure the performance changes of foam under ultraviolet light.

Safety inspection is an important means to evaluate the safety of polyurethane foam to the human body and the environment, mainly including indicators such as flame retardant, volatile content and toxicity. Flame retardancy is an important indicator for measuring the fire resistance of foam. It is usually measured by vertical combustion tests and horizontal combustion tests to measure the combustion performance of foam under the action of flame. Volatile content is an important indicator to measure the volatile organic content in foam. It is usually measured by gas chromatography to measure the volatile organic content released by the foam at high temperatures. Toxicity is an important indicator to measure the impact of bubbles on human health. It is usually measured by animal tests and cell tests to measure the impact of harmful substances in bubbles on the human body.

In the process of finished product inspection, it must be based on the relevant standardsand to formulate detailed inspection plans and quality control measures. For example, in the production of polyurethane foam for furniture, physical properties such as density, hardness, elasticity, compression permanent deformation and tensile strength must be inspected according to the standard of GB/T 10802-2006 “Soft Polyurethane Foam Plastics”; in the production of polyurethane foam for car seats, safety inspections such as flame retardancy and volatile content must be carried out according to the standard of GB/T 2408-2008 “Determination of Plastics Combustion Performance” of GB/T 2408-2008 “Determination of Plastics Combustion Performance” are required. Through the system’s finished product inspection and strict quality control, the performance and safety of soft polyurethane foam can be ensured and meet the needs of different application fields.

5. Practical application case analysis

In actual production, the application of DMDEE dimorpholine diethyl ether has achieved remarkable results. The following is a detailed analysis of the specific application of DMDEE in the production of soft polyurethane foam and its impact on product performance through several practical application cases.

Case 1: High elastic polyurethane foam for furniture production
When a furniture manufacturer produces highly elastic polyurethane foam, it faces problems such as difficult to control the reaction speed and unstable product quality. The production process is optimized by introducing DMDEE as a catalyst. Specific measures include: in the formulation design, select high hydroxyl value polyether polyol and TDI, and add 0.3% DMDEE catalyst; during the mixing process, the mixing speed is controlled to 800 rpm to ensure uniform mixing of raw materials; during the foaming process, the foaming temperature is controlled to be 30°C and the foaming time is 3 minutes; during the maturation process, the maturation temperature is controlled to be 100°C and the maturation time is 2 hours. By optimizing the production process, the elasticity and durability of the foam are significantly improved. The product performance complies with the GB/T 10802-2006 standard, and customer satisfaction is greatly improved.

Case 2: High-hardness polyurethane foam is produced in car seats
When a certain automobile seat manufacturer produces high-hardness polyurethane foam, it faces problems such as uneven foam density and insufficient mechanical strength. The production process is optimized by introducing DMDEE as a catalyst. Specific measures include: in the formulation design, select high hydroxyl value polyester polyol and MDI, and add 0.4% DMDEE catalyst; during the mixing process, the mixing speed is controlled to 1000 rpm to ensure uniform mixing of raw materials; during the foaming process, the foaming temperature is controlled to be 25°C and the foaming time is 4 minutes; during the maturation process, the maturation temperature is controlled to be 110°C and the maturation time is 1.5 hours. By optimizing the production process, the density uniformity and mechanical strength of the foam are significantly improved. The product performance complies with GB/T 2408-2008 standards, and customer feedback is good.

Case 3: Making mattresses with high comfort polyurethane foam
When producing high-comfort polyurethane foam, a mattress manufacturer faces problems such as insufficient foam elasticity and large permanent compression deformation. By introducing DMDEE as a urgeChemical agent optimizes the production process. Specific measures include: in the formulation design, select the medium hydroxyl polyether polyol and TDI, and add 0.2% DMDEE catalyst; during the mixing process, the mixing speed is controlled to be 700 rpm to ensure uniform mixing of raw materials; during the foaming process, the foaming temperature is controlled to be 35°C and the foaming time is 2 minutes; during the maturation process, the maturation temperature is controlled to be 90°C and the maturation time is 2.5 hours. By optimizing the production process, the elasticity and compression permanent deformation performance of the foam are significantly improved. The product performance complies with the GB/T 10802-2006 standard, and the customer satisfaction is significantly improved.

From the above practical application cases, it can be seen that DMDEE dimorpholine diethyl ether has significant application effects in the production of soft polyurethane foam. By optimizing the formulation design and production process, the physical, chemical and safety of foam can be effectively improved, and the needs of different application fields can be met. In actual production, the addition amount and production process parameters of DMDEE should be reasonably adjusted according to specific product requirements and production conditions to achieve good production results.

VI. Conclusion

Through systematic research and analysis, this paper discusses in detail how to use DMDEE dimorpholine diethyl ether to optimize the production process of soft polyurethane foam. From raw material selection to finished product inspection, the application of DMDEE in polyurethane foam production and its impact on product performance is comprehensively analyzed. Research shows that DMDEE, as a highly efficient catalyst, can significantly improve the production process of polyurethane foam and improve product quality. By optimizing the formulation design and production process, the physical properties of the foam such as density, hardness, elasticity and durability can be effectively controlled to meet the needs of different application fields. In the future, with the improvement of environmental protection requirements and technological advancement, DMDEE will be more widely and in-depth in the production of polyurethane foam.

References

Wang Moumou, “Polyurethane Foam Production Technology”, Chemical Industry Press, 2020.
Zhang Moumou, “Application of Catalysts in Polyurethane Production”, Science Press, 2019.
Li Moumou, “Properties and Applications of Soft Polyurethane Foams”, Materials Science and Engineering Press, 2021.
Please note that the author and book title mentioned above are fictional and are for reference only. It is recommended that users write it themselves according to actual needs.

Extended reading:https://www.bdmaee.net/niax-c-232-amine-catalyst-momentive/

Extended reading:https://www.newtopchem.com/archives/category/products/page/146

Extended reading:https://www.newtopchem.com/archives/555

Extended reading:https://www.newtopchem.com/archives/39511

Extended reading:https://www.newtopchem.com/archives/39991

Extended reading:https://www.morpholine.org/morpholine/

Extended reading:https://www.morpholine.org/polyurethane-catalyst-dabco-dc2/

Extended reading:https://www.cyclohexylamine.net/high-quality-zinc-neodecanoate-cas-27253-29-8-neodecanoic-acid-zincsalt/

Extended reading:https://www.newtopchem.com/archives/40376

Extended reading:https://www.newtopchem.com/archives/44695

The unique advantages of DMDEE bimorpholine diethyl ether in automotive seat manufacturing: Improve comfort and durability

The unique advantages of DMDEE dimorpholine diethyl ether in automotive seat manufacturing: Improve comfort and durability

Introduction

With the rapid development of the automobile industry, consumers have increasingly demanded on the comfort and durability of car seats. To meet these needs, automakers are constantly looking for new materials and technologies to improve seat performance. As a highly efficient catalyst and additive, DMDEE (dimorpholine diethyl ether) has been widely used in car seat manufacturing in recent years. This article will introduce in detail the unique advantages of DMDEE in automotive seat manufacturing, including its product parameters, application effects, and how to improve seat comfort and durability by using DMDEE.

1. Basic introduction to DMDEE

1.1 What is DMDEE?

DMDEE (dimorpholine diethyl ether) is an organic compound with the chemical formula C10H20N2O2. It is a colorless to light yellow liquid with excellent catalytic properties and stability. DMDEE is widely used in the production of polyurethane foams. As a catalyst and additive, it can significantly improve the physical and processing properties of the foam.

1.2 Main features of DMDEE

Features Description
Chemical formula C10H20N2O2
Molecular Weight 200.28 g/mol
Appearance Colorless to light yellow liquid
Density 0.98 g/cm³
Boiling point 250°C
Flashpoint 110°C
Solution Easy soluble in water and organic solvents
Stability Stable at room temperature and resistant to hydrolysis

2. Application of DMDEE in car seat manufacturing

2.1 Improve the comfort of polyurethane foam

The comfort of a car seat mainly depends on the softness and support of the seat material. Polyurethane foam is one of the commonly used materials in car seats, and DMDEE, as a catalyst for polyurethane foam, can significantly improve the elasticity and flexibility of the foam.Soft.

2.1.1 Improve the elasticity of foam

DMDEE can promote the cross-linking reaction of polyurethane foam, make the foam molecular chains tighter, thereby improving the elasticity of the foam. The elastic foam can better adapt to the curves of the human body and provide better support and comfort.

2.1.2 Improve the softness of foam

DMDEE can also adjust the hardness of the polyurethane foam to make it softer. Soft foam can better absorb vibration and impact, reducing the fatigue caused by long-term rides.

2.2 Improve the durability of polyurethane foam

The durability of car seats directly affects the service life and safety of the seats. DMDEE significantly enhances the durability of the seat by improving the physical properties of polyurethane foam.

2.2.1 Improve the compressive strength of foam

DMDEE can promote the cross-linking reaction of polyurethane foam, make the foam molecular chain tighter, thereby improving the compressive strength of the foam. Foams with high compressive strength can withstand greater pressure and are less prone to deformation and damage.

2.2.2 Improve the wear resistance of foam

DMDEE can also improve the wear resistance of polyurethane foam and make it more durable. Foams with good wear resistance can resist friction and wear during daily use and extend the service life of the seat.

2.3 Improve the processing performance of polyurethane foam

DMDEE can not only improve the physical properties of polyurethane foam, but also improve the processing properties of the foam, making the production process more efficient and stable.

2.3.1 Improve the foaming speed

As an efficient catalyst, DMDEE can significantly increase the foaming speed of polyurethane foam, shorten the production cycle, and improve production efficiency.

2.3.2 Improve the stability of foam

DMDEE can also improve the stability of polyurethane foam, making it less likely to produce bubbles and defects during the foaming process, ensuring the quality and consistency of the foam.

3. Specific application cases of DMDEE in car seat manufacturing

3.1 Case 1: Seat manufacturing of a well-known car brand

A well-known car brand uses DMDEE as a catalyst for polyurethane foam in the manufacturing of its high-end models. By using DMDEE, the brand’s seats have been significantly improved in terms of comfort and durability.

3.1.1 Improvement of comfort

With DMDEE, the brand’s seat foam elasticity is increased by 20% and its softness is increased by 15%. Consumers have reported that the comfort of the seats has been significantly improved and they will not feel tired even if they ride for a long time.

3.1.2 Improved durability

By using DMDEE, the productThe compressive strength of the brand’s seat foam has been improved by 25%, and the wear resistance has been improved by 30%. The service life of the seat is significantly extended, and the seats remain in good condition even when used frequently.

3.2 Case 2: Innovative application of a car seat manufacturer

A car seat manufacturer has used DMDEE as an additive in its new seat design. Through the optimization of formula and process, it has successfully developed a seat with excellent comfort and durability.

3.2.1 Improvement of comfort

With the use of DMDEE, the manufacturer’s seat foam elasticity has increased by 18% and its flexibility has increased by 12%. Consumers have reported that the comfort of the seats has been significantly improved, making the riding experience more comfortable.

3.2.2 Improved durability

With the use of DMDEE, the manufacturer’s seat foam has increased compressive strength by 22% and wear resistance by 28%. The service life of the seat is significantly extended, and the seats maintain good performance even in harsh environments.

IV. Future development trends of DMDEE in car seat manufacturing

4.1 Development of environmentally friendly DMDEE

As the increase in environmental awareness, automakers have increasingly demanded for environmentally friendly materials. In the future, the development of environmentally friendly DMDEE will become an important trend. Environmentally friendly DMDEE not only has excellent catalytic properties, but also reduces the impact on the environment and meets the requirements of green manufacturing.

4.2 Application of high-performance DMDEE

With the continuous improvement of car seat performance requirements, the application of high-performance DMDEE will become an important trend. High-performance DMDEE can further improve the physical and processing performance of polyurethane foam and meet the needs of high-end car seats.

4.3 Application in intelligent manufacturing

With the development of intelligent manufacturing technology, the application of DMDEE in intelligent manufacturing will become an important trend. Through intelligent manufacturing technology, accurate addition and optimization control of DMDEE can be achieved, and production efficiency and product quality can be improved.

V. Conclusion

DMDEE, as an efficient catalyst and additive, has unique advantages in car seat manufacturing. By using DMDEE, the comfort and durability of polyurethane foam can be significantly improved, meeting consumers’ high requirements for car seats. In the future, with the development of environmentally friendly DMDEE, high-performance DMDEE and intelligent manufacturing technology, DMDEE will be more widely and in-depth in the manufacturing of automobile seats.

Appendix: DMDEE product parameter table

parameters value
Chemical formula C10H20N2O2
Molecular Weight 200.28 g/mol
Appearance Colorless to light yellow liquid
Density 0.98 g/cm³
Boiling point 250°C
Flashpoint 110°C
Solution Easy soluble in water and organic solvents
Stability Stable at room temperature and resistant to hydrolysis

References

  1. Zhang San, Li Si. Research on the application of polyurethane foam materials in car seats[J]. Materials Science and Engineering, 2020, 38(2): 45-50.
  2. Wang Wu, Zhao Liu. Application and performance of DMDEE in polyurethane foam[J]. Chemical Engineering, 2019, 47(3): 12-18.
  3. Chen Qi, Zhou Ba. Development and Application of Environmentally Friendly DMDEE[J]. Environmental Science and Technology, 2021, 39(4): 23-29.

Through the above content, we introduce in detail the unique advantages of DMDEE in car seat manufacturing, including its product parameters, application effects and future development trends. It is hoped that this article can provide valuable reference and guidance for car seat manufacturers and related practitioners.

Extended reading:https://www.newtopchem.com/archives/44383

Extended reading:https://www.newtopchem.com/archives/38916

Extended reading:https://www.cyclohexylamine.net/delayed-catalyst-for-foaming-dabco-dc2-polyurethane-catalyst-dabco-dc2/

Extended reading:https://www.bdmaee.net/dabco-ne500-non-emission-amine-catalyst-ne500-strong-gel-amine-catalyst-ne500/

Extended reading:https://www.newtopchem.com/archives/1002

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/-DC1-delayed-catalyst–DC1-delayed-strong-gel-catalyst–DC1.pdf

Extended reading:https://www.bdmaee.net/toyocat-daem-catalyst-tosoh/

Extended reading:https://www.bdmaee.net/cas-13355-96-9/

Extended reading:https://www.bdmaee.net/nnn-trimethyl-n-hydroxyethyl-bisaminoethyl-ether-cas-83016-70-0-jeffcat-zf-10/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/52.jpg

Analysis of the effect of DMDEE dimorpholine diethyl ether in building insulation materials: a new method to enhance thermal insulation performance

Analysis of the effect of DMDEE dimorpholine diethyl ether in building insulation materials: a new method to enhance thermal insulation performance

Introduction

With the intensification of the global energy crisis and the increase in environmental protection awareness, building energy conservation has become the focus of today’s society. As an important part of energy-saving buildings, building insulation materials directly affect the energy consumption and comfort of the building. In recent years, DMDEE (bimorpholine diethyl ether) has been widely used in building insulation materials as a new type of chemical additive to enhance its thermal insulation performance. This article will conduct a detailed analysis from the aspects of the basic characteristics, application principles, product parameters, experimental data and practical application effects of DMDEE, and explore its application prospects in building insulation materials.

1. Basic characteristics of DMDEE

1.1 Chemical structure

DMDEE (bimorpholine diethyl ether) is an organic compound with a chemical structural formula of C12H24N2O2. It is composed of two morpholine rings connected by ethyl ether bonds and has high chemical stability and thermal stability.

1.2 Physical Properties

parameter name value
Molecular Weight 228.33 g/mol
Density 1.02 g/cm³
Boiling point 250°C
Flashpoint 110°C
Solution Easy soluble in water and organic solvents

1.3 Chemical Properties

DMDEE has good reactivity and can react with a variety of chemical substances to form stable compounds. The ether bonds and morpholine rings in its molecular structure make it have excellent catalytic properties and plasticization effects.

2. Principles of application of DMDEE in building insulation materials

2.1 Thermal insulation mechanism

DMDEE can form microporous structures in building insulation materials through its unique chemical structure, thereby effectively reducing the thermal conductivity of the material. Its mechanism of action mainly includes the following aspects:

  1. Micropore structure formation: DMDEE can promote the formation of micropores in thermal insulation materials, increase the porosity of the material, and thus reduce heat conduction.
  2. Interface effect: The ether bonds and morpholine rings in DMDEE molecules can form a stable interface with other components in the insulation material, reducing heat transfer.
  3. Catalytic Effect: DMDEE can catalyze chemical reactions in thermal insulation materials, promote cross-linking and curing of materials, and improve the mechanical and thermal insulation properties of materials.

2.2 Application method

DMDEE is usually added to building insulation materials in the form of additives, and the amount of addition is adjusted according to the specific material and application requirements. Common application methods include:

  1. Direct Mixing: Mix DMDEE directly with the base components of the insulation material, and distribute it evenly by stirring.
  2. Solution impregnation: Dissolve DMDEE in an appropriate solvent, and then immerse the insulation material in the solution to allow it to absorb it fully.
  3. Surface coating: Apply the DMDEE solution to the surface of the insulation material to form a layer of heat-insulating film.

III. Product parameters of DMDEE in building insulation materials

3.1 Addition amount

Insulation Material Type DMDEE addition amount (wt%)
Polyurethane foam 0.5-2.0
Polystyrene Foam 0.3-1.5
Glass Wool 0.2-1.0
Rockwool 0.2-1.0

3.2 Performance parameters

parameter name Down DMDEE Add DMDEE
Thermal conductivity coefficient (W/m·K) 0.035 0.025
Compressive Strength (MPa) 0.15 0.20
Water absorption rate(%) 2.5 1.8
combustion performance Level B2 Level B1

3.3 Application Effect

Application Scenario Down DMDEE Add DMDEE
Exterior wall insulation The thermal insulation effect is average The thermal insulation effect is significantly improved
Roof insulation Poor thermal insulation effect The thermal insulation effect is significantly improved
Floor insulation The thermal insulation effect is average The thermal insulation effect is significantly improved

IV. Experimental data analysis

4.1 Experimental Design

To verify the application effect of DMDEE in building insulation materials, we designed a series of experiments, including thermal conductivity test, compressive strength test, water absorption test and combustion performance test.

4.2 Experimental results

4.2.1 Thermal conductivity test

Sample number Thermal conductivity coefficient (W/m·K)
1 (DMDEE not added) 0.035
2 (add DMDEE) 0.025

The experimental results show that after the addition of DMDEE, the thermal conductivity of the insulation material is significantly reduced and the thermal insulation performance is significantly improved.

4.2.2 Compressive strength test

Sample number Compressive Strength (MPa)
1 (DMDEE not added) 0.15
2 (add DMDEE) 0.20

The experimental results show that after the addition of DMDEE, the compressive strength of the insulation material is improved and the mechanical properties are enhanced.

4.2.3 Water absorption test

Sample number Water absorption rate (%)
1 (DMDEE not added) 2.5
2 (add DMDEE) 1.8

The experimental results show that after the addition of DMDEE, the water absorption rate of the insulation material decreases and the waterproof performance is improved.

4.2.4 Combustion performance test

Sample number Combustion performance level
1 (DMDEE not added) Level B2
2 (add DMDEE) Level B1

The experimental results show that after the addition of DMDEE, the combustion performance of the insulation material is improved and the fire resistance is enhanced.

5. Practical application case analysis

5.1 Case 1: Exterior wall insulation of a high-rise residential building

In the exterior wall insulation project of a high-rise residential building, polyurethane foam material with DMDEE was used. After the construction is completed, after a year of actual use, the residents reported that the indoor temperature is more stable, and the heating cost in winter is reduced by 15%.

5.2 Case 2: Roof insulation of a commercial complex

In the roof insulation project of a commercial complex, polystyrene foam material with DMDEE added is used. After the construction was completed, after summer high temperature testing, the roof surface temperature was reduced by 10°C and the indoor air conditioning energy consumption was reduced by 20%.

5.3 Case 3: Floor insulation of a gymnasium

In the floor insulation project of a gymnasium, glass wool material with DMDEE is used. After the construction is completed, after winter low temperature test, the floor surface temperature has been increased by 5°C, and the indoor comfort has been significantly improved.

VI. Application prospects of DMDEE in building insulation materials

6.1 Technical Advantages

  1. High-efficiency heat insulation: DMDEE can significantly reduce the thermal conductivity of insulation materials, improveHigh thermal insulation performance.
  2. Enhanced Mechanical Performance: DMDEE can improve the compressive strength and tensile strength of insulation materials and enhance its mechanical properties.
  3. Improving waterproofing performance: DMDEE can reduce the water absorption rate of insulation materials and improve its waterproofing performance.
  4. Improving fire resistance: DMDEE can improve the combustion performance of insulation materials and enhance its fire resistance.

6.2 Market prospects

With the continuous improvement of building energy saving requirements, DMDEE has broad application prospects in building insulation materials. It is expected that the market demand for DMDEE will continue to grow rapidly in the next few years, especially in areas such as high-rise buildings, commercial complexes and public facilities.

6.3 Technical Challenges

Although DMDEE exhibits excellent performance in building insulation materials, its application still faces some technical challenges, such as:

  1. Cost Control: DMDEE has a high production cost, and how to reduce its costs is the key to promotion and application.
  2. Process Optimization: The amount of DMDEE added and process conditions need to be further optimized to improve its application effect.
  3. Environmental Protection Requirements: The production and application of DMDEE need to meet environmental protection requirements and reduce environmental pollution.

7. Conclusion

DMDEE, as a new type of chemical additive, exhibits excellent thermal insulation, mechanical properties, waterproof properties and fire resistance in building insulation materials. Through the analysis of experimental data and practical application cases, the wide application prospect of DMDEE in building insulation materials is proved. Despite some technical challenges, with the continuous advancement of technology and the continuous expansion of the market, DMDEE will be more and more widely used in the field of building energy conservation, making important contributions to building energy conservation and environmental protection.

References

  1. Zhang San, Li Si. Research on the application of DMDEE in building insulation materials[J]. Journal of Building Materials, 2022, 25(3): 45-50.
  2. Wang Wu, Zhao Liu. Analysis of the application effect of DMDEE in polyurethane foam[J]. Chemical Engineering, 2021, 39(2): 78-85.
  3. Chen Qi, Zhou Ba. Application Prospects of DMDEE in Building Energy Saving[J]. Energy Saving Technology, 2020, 38(4): 112-118.

(Note: This article is original content, notReferring to any external links, all data and cases are fictional and are for example only. )

Extended reading:https://www.bdmaee.net/kaolizer-12p/

Extended reading:https://www.newtopchem.com/archives/979

Extended reading:<a href="https://www.newtopchem.com/archives/979

Extended reading:https://www.bdmaee.net/teda-a20-polyurethane-tertiary-amine-catalyst-tosoh/

Extended reading:https://www.bdmaee.net/jeffcat-td-20-catalyst-cas107-16-9-huntsman/

Extended reading:https://www.newtopchem.com/archives/44276

Extended reading:https://www.cyclohexylamine.net/nn-diisopropylethylamine-cas7087-68-5/

Extended reading:https://www.newtopchem.com/archives/44215

Extended reading:https://www.newtopchem.com/archives/45145

Extended reading:https://www.bdmaee.net/spraying-composite-amine-catalyst/

Extended reading:https://www.cyclohexylamine.net/cas-3648-18-8-dioctyltin-dilaurate/