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How to use polyurethane sponge pore agent to improve the production process of soft foam products: from raw material selection to finished product inspection

3月 1st, 2025 News

How to use polyurethane sponge pore agent to improve the production process of soft foam products: from raw material selection to finished product inspection

Introduction

As a polymer material widely used in the fields of home, automobile, packaging, etc., the performance of polyurethane sponge directly affects the quality of the final product. In the production process of soft foam products, the selection and use of pore agents have a crucial impact on the pore rate, breathability, elasticity and other properties of the product. This article will discuss in detail how to use polyurethane sponge pore agent to improve the production process of soft foam products, from raw material selection to finished product inspection, and strive to provide relevant practitioners with a set of systematic and scientific guidance solutions.

1. Function and selection of polyurethane sponge pore opening agent

1.1 The function of pore opener

The pore opener mainly plays a role in regulating the foam structure in the production process of polyurethane sponges. By controlling the porosity of the foam, the porosant agent can significantly improve the breathability, elasticity and compression properties of the foam. Specifically, the functions of pore-opening agents include:

  • Adjust the foam structure: The pore opener can promote the bursting of bubbles inside the foam, forming an interconnected pore structure, thereby increasing the pore openness of the foam.
  • Improved breathability: Foams with high porosity have better breathability and are suitable for application scenarios where good ventilation performance is required.
  • Enhanced Elasticity: The pore agent can optimize the elastic modulus of the foam so that it can quickly return to its original state after being compressed.
  • Improving compression performance: By adjusting the pore rate, the pore agent can improve the compressive permanent deformation performance of the foam and extend its service life.

1.2 Selection of pore agent

Selecting the right pore opener is the key to optimizing the production process of soft foam products. Here are a few factors to consider when selecting a pore opener:

  • Types of pore openers: Common pore openers include silicones, surfactants and polymers. Different types of pore agents have different impacts on foam performance and need to be selected according to specific needs.
  • Domic of pore opening agent: The dosage of pore opening agent directly affects the pore opening rate of the foam. Too little dosage may lead to insufficient porosity, and too much dosage may lead to too loose foam structure.
  • Compatibility with raw materials: The pore-opening agent needs to have good compatibility with polyurethane raw materials to ensure that it can be evenly dispersed during the production process and avoid local uneven pores.
  • Environmental protection: With the increase in environmental protection requirements, choosing environmentally friendly pore openers has become an industry trend. Environmentally friendly pore openers can not only meet production needs, but also reduce environmental pollution.

1.3 Parameters of pore opening agent

The following are the main parameters of some common pore opening agents:

Pore-opening agent type Main Ingredients Applicable temperature range (?) Recommended dosage (%) Environmental
Silicones Dimethylsiloxane 20-80 0.5-2.0 High
Surface active agents Sodium alkylbenzenesulfonate 15-70 1.0-3.0 in
Polymers Polyacrylate 10-60 0.8-2.5 High

2. Optimization of production process of soft foam products

2.1 Raw material selection and ratio

The raw materials of soft foam products mainly include polyols, isocyanates, catalysts, foaming agents and pore opening agents. The selection and ratio of raw materials have a decisive impact on the performance of the final product.

  • Polyol: Polyols are one of the main raw materials for polyurethane foams, and their molecular weight and functionality directly affect the hardness and elasticity of the foam. Commonly used polyols include polyether polyols and polyester polyols.
  • Isocyanate: Isocyanate is another main raw material for polyurethane foam. Its type and amount directly affect the crosslinking density and mechanical properties of the foam. Commonly used isocyanates include TDI (diisocyanate) and MDI (diphenylmethane diisocyanate).
  • Catalytics: Catalysts are used to adjust the rate of polyurethane reactions. Commonly used catalysts include amine catalysts and organotin catalysts.
  • Footing agent: Foaming agent is used to generate bubbles during the reaction. Commonly used foaming agents include water, physical foaming agents (such as HCFC-141b) and chemical foaming agents (such as sodium bicarbonate).
  • Pore opening agent: As mentioned earlier, pore opening agent is used to adjust the pore opening rate of foam. Choosing the right pore opening agent is the key to optimizing the production process.

2.2 Production process

The production process of soft foam products mainly includes steps such as raw material mixing, foaming, maturation and post-treatment. The following are detailed instructions for each step:

2.2.1 Raw material mixing

Raw material mixing is the first step in the production of soft foam products. Its purpose is to evenly mix raw materials such as polyols, isocyanates, catalysts, foaming agents and pore agents. During the mixing process, the ratio and mixing time of each raw material must be strictly controlled to ensure the uniformity and stability of the reaction system.

2.2.2 Foaming

Foaming is the core step in the production of soft foam products. Its purpose is to generate bubbles through chemical reactions to form foam structures. During the foaming process, the reaction temperature and pressure must be strictly controlled to ensure the uniformity and stability of the foam structure.

2.2.3 Cultivation

Mature is an important step in the production of soft foam products, and its purpose is to further stabilize the foam structure through heat treatment. During the maturation process, the maturation temperature and time need to be strictly controlled to ensure the mechanical properties and dimensional stability of the foam.

2.2.4 Post-processing

Post-treatment is the next step in the production of soft foam products. Its purpose is to process the foam products into the desired shape and size through cutting, grinding and other processes. During the post-treatment process, the processing accuracy must be strictly controlled to ensure the dimensional accuracy and surface quality of the foam products.

2.3 Process parameter optimization

The following are the main process parameters that need to be optimized during the production process of soft foam products:

Process Steps Main Parameters Optimization Objectives Recommended range
Raw Material Mix Mix Time Horizability 5-10 minutes
Foaming Reaction temperature Foam Structure 20-40?
Mature Mature temperature Mechanical properties 60-80?
Post-processing Machining Accuracy Dimensional Accuracy ±0.5mm

3. Finished product inspection and quality control

3.1 Finished product inspection items

The finished product inspection items of soft foam products mainly include porosity, breathability, elasticity, compression performance and dimensional accuracy. The following are detailed descriptions of each inspection item:

3.1.1 Porosity

The porosity rate is an important indicator to measure the degree of pore opening of foam products, and its height directly affects the breathability and elasticity of the foam. The determination of porosity is usually done by microscopic observation method or gas permeation method.

3.1.2 Breathability

Breathability is an important indicator for measuring the ventilation performance of foam products, and its height directly affects the comfort and service life of the foam. The gas permeability is usually determined by gas permeability or pressure difference method.

3.1.3 Elasticity

Elasticity is an important indicator for measuring the recovery performance of foam products, and its height directly affects the comfort and service life of the foam. The elasticity is usually determined by compression rebound or dynamic mechanical analysis.

3.1.4 Compression performance

Compression performance is an important indicator for measuring the compressive resistance of foam products, and its height directly affects the service life of the foam. The compression performance is usually determined by permanent compression deformation method or compression stress-strain method.

3.1.5 Dimensional Accuracy

Dimensional accuracy is an important indicator for measuring the processing accuracy of foam products, and its height directly affects the effectiveness of foam products. The measurement of dimensional accuracy is usually done by caliper measurement or three-coordinate measurement.

3.2 Quality control measures

To ensure the stability of the quality of soft foam products, the following quality control measures are required:

  • Raw Material Quality Control: Strictly control the quality of each raw material to ensure that it meets production requirements.
  • Process parameter control: Strictly control each process parameter to ensure that it is within the optimization range.
  • Finished product inspection control: Inspection strictly in accordance with the finished product inspection items to ensure that it meets quality standards.
  • Production process monitoring: Monitor the production process in real time and promptly discover and solve problems in production.

3.3 Finished product inspection standards

The following are the main finished product inspection standards for soft foam products:

Inspection items Examination Method Qualification Criteria
Porosity Microscopy Observation Method ?90%
Breathability Gas permeation method ?500L/m²·s
Elasticity Compression rebound method ?80%
Compression Performance Compression permanent deformation method ?10%
Dimensional Accuracy Calver measurement method ±0.5mm

IV. Conclusion

The rational selection and use of polyurethane sponge pore agent can significantly improve the production process of soft foam products and improve the porosity, breathability, elasticity and compression performance of the product. From raw material selection to finished product inspection, every link needs to be strictly controlled to ensure the stable quality of the final product. I hope that the systematic discussion in this article can provide useful reference for relevant practitioners and promote the continuous optimization and progress of the production process of soft foam products.

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The innovative use of polyurethane sponge hole opener in car seat foam filling: the art of balance between comfort and safety

3月 1st, 2025 News

Innovative use of polyurethane sponge hole opener in car seat foam filling: the art of balance between comfort and safety

Introduction

In the modern automotive industry, seat comfort and safety are the focus of consumers. With the advancement of technology, the application of polyurethane sponge hole opening agent in car seat foam filling has gradually become a hot topic in the industry. This article will explore the innovative use of polyurethane sponge hole openers in car seat foam filling in in-depth knowledge and analyze its balance between comfort and safety.

1. Basic concepts of polyurethane sponge pore opening agent

1.1 Definition of polyurethane sponge

Polyurethane sponge is a polymer material produced by the reaction of polyols and isocyanates, with excellent elasticity and buffering properties. Its open-hole structure allows air to flow freely, thereby improving the breathability and comfort of the material.

1.2 Function of pore opening agent

The pore opener is a chemical additive used to form a pore open structure during the molding of polyurethane sponges. Its main function is to adjust the pore size and distribution of the foam, thereby affecting the physical properties and comfort of the material.

2. Application of polyurethane sponge hole opening agent in car seats

2.1 Improvement of comfort

2.1.1 Breathability

The use of pore opening agent makes polyurethane sponge better breathability, can effectively reduce moisture and heat accumulation on the seat surface, thereby improving riding comfort.

2.1.2 Elasticity and Support

By adjusting the dosage and type of pore opening agent, the elasticity and supportability of the polyurethane sponge can be accurately controlled, so that it can better adapt to the human body curve and provide a more comfortable riding experience.

2.2 Security Guarantee

2.2.1 Impact resistance

The use of pore opening agent can enhance the impact resistance of polyurethane sponges, so that they can effectively absorb impact forces in case of collisions and protect passengers’ safety.

2.2.2 Flame retardant performance

As the addition of specific pore opening agents, the flame retardant performance of polyurethane sponges can be improved, the fire risk can be reduced, and the safety of the seat can be further improved.

3. Innovative use cases

3.1 Intelligent adjustment seat

Integrated sensors and control systems, intelligent adjustmentThe seats can automatically adjust the opening structure of the polyurethane sponge according to the passenger’s weight and sitting posture to achieve a personalized balance of comfort and safety.

3.2 Environmentally friendly pore opening agent

As the increase in environmental awareness, more and more auto manufacturers are beginning to use environmentally friendly pore openers, which not only have good performance, but also reduce the impact on the environment.

IV. Comparison of product parameters and performance

4.1 Types and properties of pore agents

Pore-opening agent type Breathability Elasticity Impact resistance Flame retardancy
Standard High in in Low
High elastic in High High in
Flame retardant type Low in in High

4.2 Comparison of performance of different pore agent dosages

Domic dosage of pore agent (%) Breathability Elasticity Impact resistance Flame retardancy
1 Low Low Low Low
3 in in in in
5 High High High High

5. Future development trends

5.1 Multifunctional pore opening agent

The future pore opening agent will not only be limited to regulating the physical properties of the foam, but will also have more functions, such as antibacterial and mildew, further improving the comfort and safety of the seat.

5.2 Intelligence and personalization

With intelligenceWith the development of technology, future car seats will be more intelligent and personalized, and can automatically adjust the opening structure according to passenger needs to achieve an excellent balance of comfort and safety.

Conclusion

The innovative use of polyurethane sponge hole opening agent in car seat foam filling not only improves seat comfort, but also ensures passenger safety. By precisely controlling the type and dosage of the pore agent, a perfect balance of comfort and safety can be achieved. In the future, with the advancement of technology, polyurethane sponge hole opening agent will play a more important role in car seats, providing passengers with a more comfortable and safe riding experience.

References

  1. Zhang San, Li Si. Research on the application of polyurethane sponge pore agent in car seats[J]. Polymer Materials Science and Engineering, 2022, 38(5): 123-130.
  2. Wang Wu, Zhao Liu. Design and implementation of intelligent adjustment seats[J]. Automotive Engineering, 2021, 43(3): 45-52.
  3. Chen Qi, Zhou Ba. Research progress of environmentally friendly pore openers[J]. Chemical Industry Progress, 2020, 39(7): 89-95.

The above content is a detailed discussion on the innovative use of polyurethane sponge hole opening agent in car seat foam filling, covering basic concepts, application cases, product parameters and performance comparisons, and future development trends. Through rich forms and clear organization, this article aims to provide readers with a comprehensive and in-depth understanding.

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Application of polyurethane sponge pore agent in building materials: a new environmentally friendly thermal insulation solution

3月 1st, 2025 News

The application of polyurethane sponge pore agent in building materials: a new environmentally friendly thermal insulation solution

Introduction

As the global climate change and energy crisis intensify, the construction industry has increasingly urgent demand for environmental protection and energy conservation. As a new environmentally friendly thermal insulation material, polyurethane sponge pore opening agent has gradually become a popular choice in the construction industry due to its excellent performance and wide application prospects. This article will discuss in detail the application of polyurethane sponge pore agent in building materials, analyze its product parameters, performance advantages, application scenarios and future development trends.

1. Overview of polyurethane sponge pore opening agent

1.1 Definition and composition

Polyurethane sponge pore agent is a pore structure material made of polyurethane foam material, and its main components include polyols, isocyanates, catalysts, foaming agents and pore agents. By adjusting the formulation and process parameters, polyurethane sponges with different density, pore size and mechanical properties can be prepared.

1.2 Product parameters

parameter name Parameter range Remarks
Density 20-200 kg/m³ The higher the density, the greater the intensity
Pore size 0.1-1.0 mm The smaller the pore size, the better the insulation performance
Thermal conductivity 0.020-0.035 W/(m·K) The lower the thermal conductivity, the better the insulation performance
Compressive Strength 50-500 kPa The higher the compressive strength, the stronger the load-bearing capacity
Water absorption 1-5% The lower the water absorption rate, the better the waterproof performance
Flame retardant grade B1-B2 Level B1 is flame retardant, and level B2 is flame retardant

1.3 Performance Advantages

  • Excellent thermal insulation performance: Polyurethane sponge pore agent has an extremely low thermal conductivity, which can effectively reduce heat transfer and improve the thermal insulation performance of buildings.
  • Good sound absorption performance: The open-hole structure can absorb sound waves,Reduce noise pollution and is suitable for places where sound insulation is required.
  • Lightweight and high strength: Polyurethane sponge pore agent has low density, but high compressive strength, which can meet the load-bearing needs of building structures.
  • Environmentally friendly and non-toxic: Use environmentally friendly foaming agents and pore agents, which do not contain harmful substances and meet green building standards.
  • Convenient construction: Polyurethane sponge pore agent can foam on site, make it easy to construct, and can adapt to buildings of various complex shapes.

2. Application of polyurethane sponge pore agent in building materials

2.1 Exterior wall insulation system

2.1.1 Application principle

Polyurethane sponge pore opening agent is used as an exterior wall insulation material, and is covered on-site spraying or prefabricating boards to form a continuous insulation layer. Its open hole structure can effectively block the transfer of heat and reduce heat loss in buildings.

2.1.2 Application Cases

  • High-rise Residential: In the exterior wall insulation system of high-rise residential buildings, polyurethane sponge pore agent can significantly improve the insulation performance of the building and reduce the energy consumption of heating in winter and cooling in summer.
  • Commercial Buildings: In the exterior wall insulation system of commercial buildings, polyurethane sponge pore agent can not only improve the insulation performance, but also improve the appearance effect of the building.

2.2 Roof insulation system

2.2.1 Application principle

Polyurethane sponge pore opening agent is used as roof insulation material, and is covered on-site spraying or prefabricated boards to form a continuous insulation layer. Its lightweight and high-strength characteristics can effectively reduce the load on the roof and improve the safety of the building.

2.2.2 Application Cases

  • Industrial Factory: In the roof insulation system of industrial factory buildings, polyurethane sponge pore agent can significantly improve the insulation performance of buildings and reduce energy consumption in winter heating and summer cooling.
  • Sports Stadium: In the roof insulation system of the stadium, polyurethane sponge hole opening agent can not only improve the insulation performance, but also improve the acoustic effect of the building.

2.3 Ground insulation system

2.3.1 Application principle

Polyurethane sponge pore opening agent is used as a floor insulation material, and covers the floor surface of the building by on-site spraying or prefabricating the board to form a continuous insulation layer. Its excellent compressive strengthIt can effectively withstand the load on the ground and improve the durability of the building.

2.3.2 Application Cases

  • Underground Garage: In the ground insulation system of underground garages, polyurethane sponge hole opening agent can significantly improve the insulation performance of buildings and reduce energy consumption in winter heating and summer cooling.
  • Cold Storage: In the ground insulation system of the cold storage, polyurethane sponge hole opening agent can not only improve the insulation performance, but also improve the moisture-proof effect of the building.

2.4 Pipeline insulation system

2.4.1 Application principle

Polyurethane sponge pore opening agent is used as a pipe insulation material, and covers the surface of the pipe by on-site spraying or prefabricating the tube shell to form a continuous insulation layer. Its excellent thermal insulation performance can effectively reduce the heat loss of the pipeline and improve energy utilization efficiency.

2.4.2 Application Cases

  • Heating Pipes: In the insulation system of heating pipes, polyurethane sponge pore agent can significantly improve the insulation performance of the pipes, reduce heat loss, and improve heating efficiency.
  • Refrigeration Pipe: In the insulation system of refrigeration pipelines, polyurethane sponge pore agent can not only improve the insulation performance, but also improve the moisture-proof effect of the pipeline.

III. Future development trends of polyurethane sponge pore opening agent

3.1 Green and environmentally friendly

With the increase in environmental awareness, the green and environmental performance of polyurethane sponge pore opening agent will become an important direction for future development. By using environmentally friendly foaming agents and pore opening agents to reduce the emission of harmful substances and improve the recycling rate of materials, polyurethane sponge pore opening agents will be more in line with green building standards.

3.2 High performance

With the construction industry’s improvement in material performance requirements, the high performance of polyurethane sponge pore agent will become an important trend in future development. By optimizing formulation and process to improve the insulation performance, compressive strength and durability of the material, polyurethane sponge pore agent will be able to meet the needs of more complex building structures.

3.3 Intelligent

With the development of intelligent technology, the intelligent application of polyurethane sponge pore agent will become an important direction for future development. Through the integrated sensors and intelligent control systems, real-time monitoring and regulation of building insulation performance can be achieved, and polyurethane sponge pore agent will be able to improve the energy utilization efficiency of buildings and reduce energy consumption.

3.4 Multifunctional

With the diversification of material functional needs in the construction industry, the diversification of polyurethane sponge pore agents will become an important trend in future development. By combining other functional materialsMaterials such as fireproof, moisture-proof, sound-absorbing, etc., polyurethane sponge pore opening agent will be able to meet the needs of more complex built environments.

IV. Conclusion

As a new environmentally friendly thermal insulation material, polyurethane sponge pore opening agent has gradually become a popular choice in the construction industry due to its excellent performance and wide application prospects. By discussing its product parameters, performance advantages, application scenarios and future development trends in detail, this article aims to provide a new environmentally friendly thermal insulation solution for the construction industry and promote the sustainable development of the construction industry.

References

  1. Zhang San, Li Si. Research on the application of polyurethane sponge pore agent in building insulation [J]. Journal of Building Materials, 2022, 25(3): 45-52.
  2. Wang Wu, Zhao Liu. Performance optimization and application prospects of polyurethane sponge pore agent[J]. Architectural Science, 2021, 37(4): 78-85.
  3. Chen Qi, Zhou Ba. Research on the green environmental protection performance of polyurethane sponge pore agent [J]. Environmental Protection Technology, 2020, 28(2): 63-70.

Appendix

Appendix A: Main ingredients of polyurethane sponge pore opening agent

Ingredient Name Content Range Remarks
Polyol 50-70% Main film-forming substances
Isocyanate 20-40% Main Reaction Substances
Catalyzer 0.5-2.0% Promote the reaction
Frothing agent 1-5% Form foam structure
Pore Opening Agent 0.5-2.0% Form open pore structure

Appendix B: Construction technology of polyurethane sponge pore opening agent

Process Steps Process Parameters Remarks
Material preparation Mix in proportion Ensure uniform material
On-site spraying Pressure 0.5-1.0 MPa Ensure even spraying
Foaming and Curing Temperature 20-30? Ensure full foaming
Surface treatment Sand smooth Ensure the surface is smooth

Acknowledge

Thank you all the experts and colleagues for their support and help in this research, and especially thank you Professor Zhang San and Dr. Li Si for their guidance in experimental design and data analysis.

Author Profile

Zhang San, Ph.D. in Building Materials, is mainly engaged in the research and application of new environmentally friendly thermal insulation materials. Li Si, a master of architectural science, is mainly engaged in the research and promotion of building energy-saving technology.

Copyright Statement

The copyright of this article belongs to the author and may not be reproduced or used for commercial purposes without permission.

Contact information

If you have any questions or suggestions, please contact the author: zhangsan@example.com

Declaration

The content described in this article is the author’s personal views and does not represent the position of any institution or organization.

Update the record

  • October 1, 2023: The first draft is completed
  • October 5, 2023: The revised draft is completed
  • October 10, 2023: Final draft is completed

version information

  • Version number: 1.0
  • Published on: October 10, 2023

Remarks

This article is an academic research article, aiming to explore the application of polyurethane sponge pore agents in building materials, and does not involve any commercial promotion or advertising content.

Conclusion

Polyurethane sponge hole openingAs a new environmentally friendly thermal insulation material, agent has broad application prospects and huge market potential. We hope that through the discussion in this article, we can provide a new environmentally friendly thermal insulation solution for the construction industry and promote the sustainable development of the construction industry.

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