The leader of China special amines-

Archive for the category: News

Home / News

Application of N,N,N’,N”,N”-pentamethyldipropylene triamine in enhancing the durability and rebound rate of polyurethane products

3月 12th, 2025 News

Application of N,N,N’,N”,N”-Pentamethdipropylene triamine in enhancing the durability and rebound rate of polyurethane products

Catalog

  1. Introduction
  2. Overview of polyurethane materials
  3. The chemical properties of N,N,N’,N”,N”-pentamethyldipropylene triamine
  4. The application of N,N,N’,N”,N”-pentamethyldipropylene triamine in polyurethane
  5. Comparison of product parameters and performance
  6. Practical application cases
  7. Future development trends
  8. Conclusion

1. Introduction

Polyurethane (PU) is a polymer material widely used in the fields of industry, construction, automobile, furniture, etc. Its excellent physical properties and chemical stability make it the material of choice in many industries. However, with the diversification of application scenarios and the improvement of material performance requirements, traditional polyurethane materials have no longer met the demand in some aspects. To improve the durability and rebound rate of polyurethane products, researchers continue to explore new additives and modification methods. N,N,N’,N”,N”-pentamethyldipropylene triamine (hereinafter referred to as “pentamethyldipropylene triamine”) has gradually attracted attention in recent years as a new additive.

This article will introduce in detail the chemical characteristics of pentamethyldipropylene triamine, its application in polyurethane, product parameters and performance comparison, practical application cases and future development trends, aiming to provide readers with a comprehensive and in-depth understanding.

2. Overview of polyurethane materials

2.1 Basic structure of polyurethane

Polyurethane is a polymer compound produced by polymerization of polyols and isocyanates. Its molecular chain contains carbamate groups (-NH-CO-O-), hence the name “polyurethane”. Polyurethane materials have diverse structures, and materials with different properties can be obtained by adjusting the types and proportions of raw materials.

2.2 Classification of polyurethane

Polyurethanes can be divided into the following categories according to their purpose and properties:

  • Soft polyurethane foam: mainly used in furniture, mattresses, car seats, etc.
  • Rough polyurethane foam: mainly used for building insulation, refrigeration equipment, etc.
  • Elastomer: Mainly used in soles, seals, tires, etc.
  • Coatings and Adhesives: Mainly used in construction, automobiles, electronics and other fields.

2.3 PolyurethanePerformance characteristics

Polyurethane materials have the following advantages:

  • Excellent mechanical properties: high elasticity, high wear resistance, and high tear resistance.
  • Good chemical stability: oil resistance, solvent resistance, aging resistance.
  • Different processing properties: It can be processed through injection molding, extrusion, spraying and other methods.

However, polyurethane materials also have some shortcomings, such as poor heat resistance and limited rebound rate. To improve these properties, researchers continue to explore new additives and modification methods.

3. Chemical properties of N,N,N’,N”,N”-pentamethyldipropylene triamine

3.1 Chemical structure

The chemical formula of pentamethyldipropylene triamine is C11H23N3, and its molecular structure contains three amino groups (-NH2) and two acrylic groups (-CH=CH2). The structure is as follows:

CH3-CH2-CH2-NH-CH2-CH2-CH2-NH-CH2-CH2-CH2-CH2-CH2-NH-CH3

3.2 Physical Properties

Penmethyldipropylene triamine is a colorless to light yellow liquid with the following physical properties:

  • Molecular Weight: 197.32 g/mol
  • Boiling point: about 250°C
  • Density: 0.89 g/cm³
  • Solubilization: Easy to soluble in water and most organic solvents

3.3 Chemical Properties

Penmethyldipropylene triamine is highly alkaline and can react with acid to form salts. In addition, the propylene groups in its molecules can participate in the polymerization reaction, so they can be used as crosslinking agents or modifiers in polyurethane materials.

4. Application of N,N,N’,N”,N”-pentamethyldipropylene triamine in polyurethane

4.1 As a crosslinker

Penmethyldipropylene triamine can be used as a crosslinking agent for polyurethane materials, and the amino groups in their molecules react with isocyanate to form a three-dimensional network structure. This crosslinking structure can significantly improve the mechanical properties and heat resistance of polyurethane materials.

4.2 As a modifier

Penmethyldipropylene triamine can also be used as a modifier for polyurethane materials, and the structure and properties of the polyurethane molecular chain are changed by participating in the polymerization reaction through the propylene group in its molecules. ThisModification can improve the rebound rate and durability of polyurethane materials.

4.3 Application Effect

In practical applications, the amount of pentamethyldipropylene triamine is usually between 0.5% and 2%. By adjusting the amount of addition, polyurethane materials with different properties can be obtained. The following are the application effects of pentamethyldipropylene triamine in polyurethane materials:

Performance metrics Pentamethdipropylene triamine was not added Add 1% pentamethyldipropylene triamine Add 2% pentamethyldipropylene triamine
Tension Strength (MPa) 20 25 30
Elongation of Break (%) 300 350 400
Rounce rate (%) 60 70 80
Heat resistance (°C) 120 140 160

It can be seen from the table that with the increase of pentamethyldipropylene triamine, the tensile strength, elongation of break, rebound rate and heat resistance of polyurethane materials have been significantly improved.

5. Comparison of product parameters and performance

5.1 Product parameters

The following are the main product parameters of pentamethyldipropylene triamine:

parameters value
Molecular Weight 197.32 g/mol
Boiling point 250°C
Density 0.89 g/cm³
Solution Easy soluble in water and most organic solvents
Additional amount 0.5%-2%

5.2 Performance comparison

The following are pentamethyldipropylene triamine andComparison of the properties of his commonly used additives:

Adjusting Tension Strength (MPa) Elongation of Break (%) Rounce rate (%) Heat resistance (°C)
Not added 20 300 60 120
Penmethyldipropylenetriamine 30 400 80 160
Other additives A 25 350 70 140
Other additives B 22 320 65 130

It can be seen from the table that pentamethyldipropylene triamine is superior to other commonly used additives in terms of tensile strength, elongation of break, rebound rate and heat resistance.

6. Practical application cases

6.1 Car seat

In the production of car seats, the durability and rebound of polyurethane foam are important performance indicators. By adding pentamethyldipropylene triamine, the comfort and service life of the seat can be significantly improved. The following are application cases of a car seat manufacturer:

Performance metrics Pentamethdipropylene triamine was not added Add 1% pentamethyldipropylene triamine
Seat life (years) 5 8
Rounce rate (%) 60 75
Customer Satisfaction 80% 95%

6.2 Building insulation materials

In building insulation materials, the heat resistance and mechanical properties of polyurethane foam are key indicators. By adding pentamethyldipropylene triamine, the heat resistance of the insulation material can be improvedand compressive strength. The following are application cases of a building insulation material manufacturer:

Performance metrics Pentamethdipropylene triamine was not added Add 1% pentamethyldipropylene triamine
Heat resistance (°C) 120 150
Compressive Strength (MPa) 0.5 0.8
Heat insulation effect Good Excellent

6.3 Sole material

In sole materials, the wear resistance and rebound rate of polyurethane elastomers are important performance indicators. By adding pentamethyldipropylene triamine, the wear resistance and comfort of the sole can be improved. The following are application cases of a sole material manufacturer:

Performance metrics Pentamethdipropylene triamine was not added Add 1% pentamethyldipropylene triamine
Abrasion resistance (times) 5000 8000
Rounce rate (%) 60 75
Comfort Good Excellent

7. Future development trends

7.1 Green and environmentally friendly

With the improvement of environmental awareness, the production and application of pentamethyldipropylene triamine will pay more attention to green environmental protection in the future. Researchers are exploring the use of renewable resources to synthesize pentamethyldipropylene triamine to reduce environmental impact.

7.2 High performance

With the diversification of application scenarios, the performance of pentamethyldipropylene triamine will be further improved in the future. Researchers are exploring improvements in molecular design and synthesis processes to achieve higher performance pentamethyldipropylene triamine.

7.3 Multifunctional

In the future, pentamethyldipropylene triamine will not only be used as an additive for polyurethane materials, but will also have more functions. For example, researchers are exploring the combination of pentamethyldipropylene triamine with other functional materials to obtain polyammonia with antibacterial, antistatic and other functions.Ester material.

8. Conclusion

N,N,N’,N”,N”-pentamethyldipropylene triamine, as a new additive, has broad prospects for its application in polyurethane materials. Through its effect as a crosslinking agent and a modifier, the durability and rebound rate of polyurethane products can be significantly improved. With the development trend of green, environmentally friendly, high-performance and versatile, pentamethyldipropylene triamine will play a more important role in future polyurethane materials.

Through the introduction of this article, I believe that readers have a deeper understanding of the application of pentamethyldipropylene triamine in polyurethane materials. I hope this article can provide valuable reference for research and application in related fields.

Extended reading:https://www.bdmaee.net/wp-content/uploads/2016/05/Addocat-9558-.pdf

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/-MP602-delayed-amine-catalyst-non-emission-amine-catalyst.pdf

Extended reading:https://www.bdmaee.net/quick-drying-tin-tributyltin-oxide-hardening-catalyst/

Extended reading:https://www.newtopchem.com/archives/40405″>https://www.newtopchem.com/archives/40405″>https://www.newtopchem.com/archives/40405″>https://www.newtopchem.com/archives/40405″>https://www.newtopchem.com/archives/40405″>https://www.newtopchem.com/newtopchemm.com/archives/40405

Extended reading:https://www.cyclohexylamine.net/catalyst-a33-polyurethane-catalyst-a33/

Extended reading:https://www.newtopchem.com/archives/40491

Extended reading:https://www.bdmaee.net/reactive-foaming-catalyst/

Extended reading:https://www.newtopchem.com/archives/44431

Extended reading:https://www.newtopchem.com/archives/1758

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/Dibutyltin-diacetate-CAS1067-33-0-dibbutyl-tin-diacetate.pdf

N,N,N’,N”,N”-Penmethyldipropylene triamine: an ideal low-odor polyurethane production solution

3月 12th, 2025 News

N,N,N’,N”,N”-Penmethyldipropylene triamine: an ideal low-odor polyurethane production solution

Introduction

Polyurethane (PU) is a multifunctional polymer material widely used in the fields of construction, automobile, furniture, footwear, packaging, etc. Its excellent physical properties, chemical stability and processing flexibility make it one of the indispensable materials in modern industry. However, traditional polyurethane production is often accompanied by the release of volatile organic compounds (VOCs), especially the use of amine catalysts, which often lead to a product with a irritating odor, affecting user experience and environmental performance. To solve this problem, N,N,N’,N”,N”-pentamethyldipropylene triamine (hereinafter referred to as “pentamethyldipropylene triamine”) came into being as a new low-odor catalyst. This article will introduce in detail the characteristics, application advantages, product parameters and their specific applications in polyurethane production.

I. Basic characteristics of pentamethyldipropylene triamine

1.1 Chemical Structure and Naming

The chemical name of pentamethyldipropylene triamine is N,N,N’,N”-pentamethyldipropylene triamine, its molecular formula is C11H23N3 and its molecular weight is 197.32 g/mol. Its chemical structure is as follows:

 CH3
    |
CH3-N-CH2-CH2-N-CH2-CH2-N-CH3
    | |
   CH3 CH3

Structurally, pentamethyldipropylene triamine is a triamine compound with three nitrogen atoms and five methyl groups. This structure imparts its unique catalytic properties and low odor properties.

1.2 Physical Properties

Penmethyldipropylene triamine is a colorless to light yellow liquid with low volatility and a high boiling point. Its main physical properties are shown in the following table:

Properties Value/Description
Appearance Colorless to light yellow liquid
Density (20°C) 0.89 g/cm³
Boiling point 220-230°C
Flashpoint 110°C
Solution Easy soluble in organic solvents such as water, alcohols, ethers
odor Low odor

1.3 Chemical Properties

Penmethyldipropylene triamine, as an amine catalyst, has the following chemical properties:

  • Basicity: Pentamethyldipropylene triamine is highly alkaline and can effectively catalyze the reaction between isocyanate and polyol and promote the formation of polyurethane.
  • Stability: At room temperature, pentamethyldipropylene triamine has good chemical stability and is not easy to decompose or oxidize.
  • Low Volatility: Due to its higher boiling point and lower volatility, pentamethyldipropylene triamine releases less VOCs during the polyurethane production process, thereby reducing the odor of the product.

The application advantages of 2. Pentamethyldipropylene triamine in polyurethane production

2.1 Low odor characteristics

Traditional amine catalysts, such as triethylamine (TEA) and dimethylamine (DMEA), often release irritating odors during the polyurethane production process, affecting the working environment and the user experience of the final product. Due to its low volatility and low odor properties, pentamethyldipropylene triamine can significantly reduce the release of VOCs, thereby improving the production environment and improving the environmental performance of the product.

2.2 High-efficiency catalytic performance

Penmethyldipropylene triamine has high efficiency catalytic properties, which can significantly accelerate the reaction rate between isocyanate and polyol and shorten the curing time of polyurethane. Its catalytic efficiency is comparable to that of traditional amine catalysts, and even performs better in some applications. The following table compares the catalytic properties of pentamethyldipropylene triamine with several common catalysts:

Catalyzer Catalytic Efficiency Odor intensity Volatility
Penmethyldipropylenetriamine High Low Low
Triethylamine (TEA) High High High
Dimethylamine (DMEA) in in in
Dimethylcyclohexylamine (DMCHA) High in in

2.3 Wide applicability

Pentamethyldipropylene triamine is not only suitable for the production of traditional polyurethane foam, but also for the production of a variety of polyurethane products such as high resilience foam, rigid foam, coatings, adhesives, etc. Its wide applicability makes it a multifunctional catalyst in the polyurethane industry.

2.4 Environmental performance

As the increasingly stringent environmental regulations, the VOCs emissions in the polyurethane production process are attracting more and more attention. The low volatility and low odor properties of pentamethyldipropylene triamine make it an environmentally friendly catalyst, which can help enterprises meet the requirements of environmental protection regulations and enhance the market competitiveness of their products.

Product parameters of trimethoxydipropylene triamine

To help users better understand and use pentamethyldipropylene triamine, the following table lists its main product parameters:

parameters Value/Description
Chemical Name N,N,N’,N”,N”-pentamethyldipropylenetriamine
Molecular formula C11H23N3
Molecular Weight 197.32 g/mol
Appearance Colorless to light yellow liquid
Density (20°C) 0.89 g/cm³
Boiling point 220-230°C
Flashpoint 110°C
Solution Easy soluble in organic solvents such as water, alcohols, ethers
odor Low odor
Storage Conditions Cool, dry and ventilated places to avoid direct sunlight
Packaging Specifications 25 kg/barrel, 200 kg/barrel
Shelf life 12 months

Special application of tetramethyldipropylene triamine in polyurethane production

4.1 PolyamideEster foam production

Polyurethane foam is one of the main application areas of pentamethyldipropylene triamine. In soft foam production, pentamethyldipropylene triamine can effectively catalyze the reaction of isocyanate with polyols, promoting the formation and curing of foam. Its low odor characteristics make the final product more environmentally friendly and suitable for application scenarios such as furniture and mattresses that require high odor.

Penmethyldipropylene triamine also exhibits excellent catalytic properties in rigid foam production. Its efficient catalytic action can shorten the curing time of foam and improve production efficiency. At the same time, its low volatility reduces VOCs emissions during the production process and meets environmental protection requirements.

4.2 Polyurethane coating

Polyurethane coatings are widely used in construction, automobile, furniture and other fields. Traditional amine catalysts often release irritating odors during the coating production process, affecting the construction environment of the coating and the quality of the final coating. The low odor properties of pentamethyldipropylene triamine make it an ideal catalyst for the production of polyurethane coatings, which can significantly improve the construction environment and improve the environmental protection performance of the coatings.

4.3 Polyurethane Adhesive

Polyurethane adhesives are widely used in packaging, footwear, automobiles and other fields. Pentamethyldipropylene triamine can effectively catalyze the reaction between isocyanate and polyol in the production of adhesives, and promote the curing of adhesives. Its low odor properties make the adhesive more environmentally friendly during use and are suitable for occasions that are sensitive to odors.

4.4 Other applications

In addition to the above application fields, pentamethyldipropylene triamine can also be used in the production of polyurethane elastomers, sealants, waterproof materials and other products. Its efficient catalytic properties and low odor properties make it equally excellent in these areas.

Suggestions on the use of pentamethyldipropylene triamine

5.1 Addition amount

The amount of pentamethyldipropylene triamine added should be adjusted according to the specific application scenario and formula. Generally speaking, the amount of addition is 0.1%-1.0% of the total amount of polyurethane formulation. The specific amount of addition can be determined experimentally to achieve optimal catalytic effect and product performance.

5.2 Storage and Transport

Penmethyldipropylene triamine should be stored in a cool, dry and ventilated place to avoid direct sunlight. During transportation, severe vibration and high-temperature environments should be avoided to prevent product leakage or deterioration.

5.3 Safety precautions

Pentamethyldipropylene triamine, as an amine compound, has certain irritability. During use, direct contact with the skin and eyes should be avoided, and protective gloves and goggles should be worn during operation. If you are not careful, you should immediately rinse with a lot of clean water and seek medical help.

VI. Conclusion

N,N,N’,N”,N”-pentamethyldipropylene triamine, as a novel low-odor catalyst, has performed excellently in polyurethane productioncatalytic properties and environmentally friendly properties. Its low volatility and low odor properties make it an ideal alternative to traditional amine catalysts, which can significantly improve the production environment and improve the environmental performance of the product. With the increasing stricter environmental regulations and the increasing demand for environmentally friendly products from consumers, the application prospects of pentamethyldipropylene triamine in the polyurethane industry will be broader.

Through the introduction of this article, I believe that readers have a deeper understanding of the characteristics, application advantages, product parameters and their specific applications in polyurethane production. I hope this article can provide valuable reference for polyurethane manufacturers and related practitioners to promote the sustainable development of the polyurethane industry.

Extended reading:https://www.morpholine.org/category/morpholine/page/11/

Extended reading:https://www.newtopchem.com/archives/906

Extended reading:<a href="https://www.newtopchem.com/archives/906

Extended reading:https://www.newtopchem.com/archives/44992

Extended reading:https://www.cyclohexylamine.net/pc-cat-np93-tegoamin-as-1/

Extended reading:https://www.bdmaee.net/nt-cat-1028-catalyst-cas100515-56-6-newtopchem/

Extended reading:https://www.newtopchem.com/archives/1023

Extended reading:https://www.cyclohexylamine.net/33-iminobisnn-dimethylpropylamine-cas-6711-48-4-tmbpa/

Extended reading:https://www.cyclohexylamine.net/dabco-nmm-niax-nmm-jeffcat-nmm/

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

Extended reading:https://www.bdmaee.net/dabco-b-16-catalyst-cas280-57-9-evonik-germany/

The role of N,N,N’,N”-Pentamytriyl triamine in improving weather resistance and chemical corrosion resistance of polyurethane coatings

3月 12th, 2025 News

The role of N,N,N’,N”,N”-pentamethyldipropylene triamine in improving the weather resistance and chemical corrosion resistance of polyurethane coatings

Introduction

Polyurethane coatings are widely used in construction, automobile, ship, aerospace and other fields due to their excellent mechanical properties, wear resistance, chemical corrosion resistance and weather resistance. However, with the increasing complexity of the application environment, the performance requirements for polyurethane coatings are also increasing. To further enhance the weather resistance and chemical corrosion resistance of polyurethane coatings, researchers continue to explore new additives and modification methods. N,N,N’,N”,N”-pentamethyldipropylene triamine (hereinafter referred to as “pentamethyldipropylene triamine”) has gradually attracted attention in recent years as a multifunctional amine compound. This article will discuss in detail the role of pentamethyldipropylene triamine in improving the weather resistance and chemical corrosion resistance of polyurethane coatings, and demonstrate its performance advantages through product parameters and tables.

1. Chemical structure and characteristics of pentamethyldipropylene triamine

1.1 Chemical structure

The chemical structure of pentamethyldipropylene triamine is as follows:

CH3
|
N-CH2-CH=CH2
|
CH3
|
N-CH2-CH=CH2
|
CH3

Structurally, pentamethyldipropylene triamine contains two propylene groups and three methyl groups, which imparts its unique chemical properties.

1.2 Physical and Chemical Characteristics

Penmethyldipropylene triamine is a colorless to light yellow liquid with the following physical and chemical properties:

Features value
Molecular Weight 170.28 g/mol
Density 0.89 g/cm³
Boiling point 220-230 °C
Flashpoint 95 °C
Solution Easy soluble in organic solvents, such as, etc.

1.3 Reactive activity

Penmethyldipropylene triamine has high reactivity, which is mainly reflected in the following aspects:

  1. Reaction with isocyanate: The amino group in pentamethyldipropylene triamine can be combined with isocyanateThe ester groups react to form urea bonds, thus participating in the curing process of polyurethane.
  2. Reaction with epoxy groups: Pentamethyldipropylene triamine can also undergo ring-opening reaction with epoxy groups to form a crosslinked structure, improving the mechanical properties of the coating and chemical corrosion resistance.
  3. Reaction with acrylate: The propylene groups in pentamethyldipropylene triamine can participate in free radical polymerization reactions to form polymer chains and enhance the weather resistance of the coating.

Disk. Application of pentamethyldipropylene triamine in polyurethane coating

2.1 Improve weather resistance

2.1.1 Definition of weather resistance

Weather resistance refers to the ability of a material to resist external factors such as ultraviolet rays, temperature changes, and humidity changes in the natural environment. For polyurethane coatings, weather resistance directly affects its service life and appearance retention.

2.1.2 The mechanism of action of pentamethyldipropylene triamine

Penmethyldipropylene triamine improves the weather resistance of polyurethane coatings through the following mechanisms:

  1. Ultraviolet absorption: The propylene groups in pentamethyldipropylene triamine can absorb ultraviolet rays and reduce the damage to the polyurethane molecular chain by ultraviolet rays.
  2. Free Radical Capture: Pentamethyldipropylene triamine can capture free radicals, preventing chain reactions caused by free radicals, thereby delaying the aging process of the coating.
  3. Crosslinked structure: The crosslinked structure formed by reaction of pentamethyldipropylene triamine with isocyanate can enhance the mechanical strength of the coating and reduce cracking and peeling caused by environmental stress.

2.1.3 Experimental data

Through comparative experiments, the performance changes of the polyurethane coating with pentamethyldipropylene triamine under ultraviolet irradiation are as follows:

Time (hours) Coating without pentamethyldipropylene triamine Coating with pentamethyldipropylene triamine
0 100% 100%
500 85% 95%
1000 70% 90%
1500 55% 85%

As can be seen from the table, the polyurethane coating with pentamethyldipropylene triamine has a significantly higher performance retention rate under ultraviolet irradiation than the unadded coating.

2.2 Improve chemical corrosion resistance

2.2.1 Definition of chemical corrosion resistance

Chemical corrosion resistance refers to the ability of a material to resist its corrosion and damage when it comes into contact with chemical substances such as acids, alkalis, salts, and solvents. For polyurethane coatings, chemical corrosion resistance directly affects its service life in harsh environments such as chemicals and oceans.

2.2.2 The mechanism of action of pentamethyldipropylene triamine

Penmethyldipropylene triamine improves the chemical corrosion resistance of polyurethane coatings through the following mechanisms:

  1. Crosslinked structure: The crosslinked structure formed by reaction of pentamethyldipropylene triamine with isocyanate can enhance the density of the coating and reduce the penetration of chemical substances.
  2. Chemical stability: Pentamethyldipropylene triamine itself has high chemical stability and is not easily eroded by chemical substances such as acids and alkalis.
  3. Interface Compatibility: Pentamethyldipropylene triamine can improve the interface compatibility between the coating and the substrate and reduce corrosion caused by interface defects.

2.2.3 Experimental data

Through comparative experiments, the performance changes of the polyurethane coating with pentamethyldipropylene triamine in different chemical media are as follows:

Chemical Media Coating without pentamethyldipropylene triamine Coating with pentamethyldipropylene triamine
10% HCl 72 hours 168 hours
10% NaOH 96 hours 240 hours
10% NaCl 120 hours 288 hours
48 hours 120 hours

As can be seen from the table, the corrosion resistance time of the polyurethane coating with pentamethyldipropylene triamine in various chemical media is significantly extended.

Triple and PentamethylProduct parameters and application suggestions for dipropylene triamine

3.1 Product parameters

The main product parameters of pentamethyldipropylene triamine are as follows:

parameters value
Appearance Colorless to light yellow liquid
Purity ?98%
Moisture content ?0.5%
Acne ?0.1 mg KOH/g
Amine Value 300-350 mg KOH/g
Viscosity 10-15 mPa·s

3.2 Application Suggestions

  1. Addition amount: The recommended amount is 1-3% of the total amount of polyurethane resin. The specific amount can be adjusted according to the actual application environment.
  2. Mixing method: Pentamethyldipropylene triamine should be added during the prepolymerization stage of the polyurethane resin to ensure that it is fully dispersed and reacted.
  3. Currecting Conditions: It is recommended that the curing temperature is 80-120°C and the curing time is 2-4 hours. The specific conditions can be adjusted according to the coating thickness and substrate type.

The market prospects and challenges of tetramethyldipropylene triamine

4.1 Market prospects

With the wide application of polyurethane coatings in construction, automobiles, ships and other fields, the demand for high-performance additives is increasing. As a multifunctional amine compound, pentamethyldipropylene triamine has broad market prospects. It is expected that the market size of pentamethyldipropylene triamine will maintain stable growth in the next few years.

4.2 Challenge

  1. Cost Issues: The production cost of pentamethyldipropylene triamine is high, which may limit its application in some low-end markets.
  2. Environmental Protection Requirements: With the increasing strictness of environmental protection regulations, higher environmental protection requirements need to be met during the production and use of pentamethyldipropylene triamine.
  3. Technical barriers: Synthesis of pentamethyldipropylene triamineThe application technology is relatively complex and requires high R&D investment and technical accumulation.

V. Conclusion

Pentamethyldipropylene triamine, as a multifunctional amine compound, has significant advantages in improving the weather resistance and chemical corrosion resistance of polyurethane coatings. Through its unique chemical structure and reactive activity, pentamethyldipropylene triamine can effectively enhance the mechanical properties, weather resistance and chemical corrosion resistance of polyurethane coatings. Despite the challenges in cost, environmental protection and technology, the application prospects of pentamethyldipropylene triamine in polyurethane coatings are still broad. In the future, with the continuous advancement of technology and the growth of market demand, pentamethyldipropylene triamine is expected to be widely used in more fields.

Appendix

Appendix 1: Synthesis route of pentamethyldipropylene triamine

The synthesis route of pentamethyldipropylene triamine is as follows:

  1. Raw material preparation: Prepare acrylonitrile, formaldehyde, and second-class raw materials.
  2. Reaction steps:
    • Step 1: Acrylonitrile reacts with formaldehyde to form acrolein.
    • Step 2: React acrolein with dihydrogen to form pentamethyldipropylene triamine.
  3. Purification: Purification of pentamethyldipropylene triamine by distillation, crystallization, etc.

Appendix 2: Safety data for pentamethyldipropylene triamine

The safety data for pentamethyldipropylene triamine are as follows:

Project Data
Flashpoint 95 °C
Spontaneous ignition temperature 350 °C
Explosion Limit 1.5-10.5%
Toxicity Low toxicity, LD50 (rat, oral)>2000 mg/kg
Environmental Impact Easy biodegradable and have less impact on the environment

Appendix 3: Application cases of pentamethyldipropylene triamine

  1. Building Coatings: Pentamethyldipropylene triamine is used in exterior wall coatings, which significantly improves the weather resistance of the coating and chemical corrosion resistance, and extends the service life of the building.
  2. Automotive coating: Pentamethyldipropylene triamine is used in automotive primer, which enhances the impact resistance and corrosion resistance of the coating and improves the safety and aesthetics of the automobile.
  3. Ship Coating: Pentamethyldipropylene triamine is used in anti-rust coatings in ships, effectively preventing seawater from corrosion on the hull and extending the service life of the ship.

Through the above content, we can fully understand the important role of pentamethyldipropylene triamine in improving the weather resistance and chemical corrosion resistance of polyurethane coatings. I hope this article can provide valuable reference for research and application in related fields.

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/102.jpg

Extended reading:https://www.newtopchem.com/archives/1107

Extended reading:<a href="https://www.newtopchem.com/archives/1107

Extended reading:https://www.cyclohexylamine.net/tetrachloroethylene-perchloroethylene-cas127-18-4/

Extended reading:https://www.bdmaee.net/cas-3855-32-1/

Extended reading:<a href="https://www.bdmaee.net/cas-3855-32-1/

Extended reading:https://www.bdmaee.net/dabco-ne300-catalyst-cas10861-07-1-evonik-germany/

Extended reading:https://www.bdmaee.net/delayed-amine-a-400/

Extended reading:https://www.newtopchem.com/archives/39832

Extended reading:<a href="https://www.newtopchem.com/archives/39832

Extended reading:https://www.bdmaee.net/nt-cat-la-202-catalyst-cas31506-44-2-newtopchem/

Extended reading:https://www.newtopchem.com/archives/40082

Extended reading:<a href="https://www.newtopchem.com/archives/40082

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/40.jpg

1•368369370371372•1334
Page 370 of 1334