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Contribution of polyurethane foam amine catalysts to sustainable development in green buildings

admin 3月 8th, 2025 News

The contribution of polyurethane foam amine catalysts to sustainable development in green buildings

Introduction

With the increasing emphasis on environmental protection and sustainable development around the world, green buildings, as a construction method that reduces environmental impact and improves resource utilization efficiency, have gradually become the mainstream trend in the construction industry. As an important building material, polyurethane foam has been widely used in green buildings due to its excellent thermal insulation performance, lightweight and durability. As a key additive in polyurethane foam production, polyurethane foam amine catalyst not only improves production efficiency, but also plays an important role in the sustainable development of green buildings. This article will discuss in detail the contribution of polyurethane foam amine catalysts in green buildings, covering their product parameters, application scenarios, environmental protection advantages and future development trends.

1. Basic concepts and functions of polyurethane foam amine catalyst

1.1 What is a polyurethane foam amine catalyst?

Polyurethane foam amine catalyst is a chemical additive used to accelerate the polyurethane reaction process. In the production of polyurethane foams, isocyanate reacts with polyols to form polyurethane, which requires a catalyst to adjust the reaction rate and foam structure. The amine catalyst promotes the reaction by providing active sites, thereby controlling the density, porosity, hardness and other properties of the foam.

1.2 Main role of catalyst

Accelerating reaction: Shorten production time and improve production efficiency.
Adjust foam performance: Control the physical properties of the foam such as density, hardness, elasticity, etc.
Improve foam structure: Optimize porosity, improve insulation performance and mechanical strength.
Reduce energy consumption: Reduce energy consumption during production and meets the requirements of green buildings.

2. Types and product parameters of polyurethane foam amine catalyst

2.1 Common types of amine catalysts

Catalytic Type	Main Ingredients	Features and Application Scenarios
Term amine catalysts	Triethylamine, dimethylamine	Fast reaction speed, suitable for rigid foam
Imidazole Catalyst	1-methylimidazole, 2-ethylimidazole	Mixed reaction, suitable for soft foam
Metal Organocatalyst	Organic tin, organic bismuth	Efficient and environmentally friendly, suitable for low VOC products
Composite Catalyst	Mixture of multiple amines	Verious, suitable for complex foam systems

2.2 Typical product parameters

The following are examples of product parameters of several common amine catalysts:

parameter name	Term amine catalysts (example)	Imidazole catalysts (example)	Metal Organocatalyst (Example)
Appearance	Colorless transparent liquid	Light yellow liquid	Colorless to light yellow liquid
Density (g/cm³)	0.85-0.95	0.90-1.00	1.10-1.20
Boiling point (?)	150-200	200-250	250-300
Flash point (?)	50-60	60-70	70-80
Activity (relative value)	High	in	High
Environmental	Medium	High	High

III. Application of polyurethane foam amine catalyst in green buildings

3.1 The core role of insulation materials

Polyurethane foam is widely used in the walls, roofs and floors of green buildings due to its excellent thermal insulation properties. By optimizing the foam structure, amine catalysts improve the insulation efficiency and mechanical strength of the foam, thereby reducing building energy consumption.

Application Case:

Wall insulation: Use polyurethane foam to fill the wall cavity to significantly reduce heat conduction.
Roof insulation: Spray polyurethane foam to form a continuous insulation layer to reduce heat loss.
Floor Sound Insulation: Polyurethane foam has sound insulation function to improve living comfort.

3.2 Reduce carbon emissions

Polyurethane foam amine catalysts reduce energy consumption during production by improving reaction efficiency. In addition, the long-term insulation properties of polyurethane foam reduce building heating and cooling needs, thereby reducing carbon emissions.

Data support:

Buildings that use polyurethane foam insulation can reduce energy consumption by 30%-50%.
The production of polyurethane foam can reduce carbon dioxide emissions by about 2 tons per ton of.

3.3 Improve resource utilization efficiency

Amine catalysts reduce the amount of raw materials by optimizing foam properties. For example, by adjusting the foam density, the amount of polyurethane can be used to reduce the use of polyurethane while ensuring performance.

Example:

Traditional foam density: 40 kg/m³
Optimized foam density: 30 kg/m³
Save raw materials: 25%

IV. Environmental protection advantages of polyurethane foam amine catalyst

4.1 Low VOC emissions

Modern amine catalysts significantly reduce the emission of volatile organic compounds (VOCs) through improved formulations, meeting the environmental protection requirements of green buildings.

Comparison data:

Catalytic Type	VOC emissions (mg/m³)
Traditional amine catalyst	500-1000
Low VOC amine catalyst	50-100

4.2 Recyclable

Polyurethane foam can be reused by chemical recycling or physical recycling after its service life. The amine catalyst plays an important role in this process and improves the recycling efficiency.

Recycling method:

Chemical Recovery: Decompose the foam into raw materials and re-used for production.
Physical Recycling: Use the foam to fill material or roadbed.

4.3 Non-toxic and harmless

Modern amine catalysts pass strict environmental certification to ensure that they are harmless to the human body and the environment. For example, organic bismuth catalysts gradually replace traditional organotin catalysts due to their low toxicity and high efficiency.

5. Future development trends

5.1 Research and development of high-performance catalysts

As the requirements for material performance of green buildings improve, amine catalysts will develop in the direction of higher activity and lower VOC emissions in the future.

R&D Direction:

Develop new composite catalysts to improve reaction efficiency.
Optimize catalyst formulation to reduce environmental impact.

5.2 Intelligent production

By introducing intelligent production technology, accurate addition of amine catalysts and real-time monitoring of reaction processes can be achieved, further improving production efficiency and product quality.

Intelligent technology:

Automated Control System
Internet of Things (IoT) Technology

5.3 Circular Economy Model

In the future, the production and use of polyurethane foam amine catalysts will pay more attention to the circular economy model, and achieve sustainable development through recycling and resource optimization.

Circular Economy Model:

Raw material recycling
Waste Reuse
Energy Optimization

VI. Summary

As an important additive in green buildings, polyurethane foam amine catalyst has made important contributions to sustainable development by improving production efficiency, optimizing foam performance, and reducing environmental impact. In the future, with the continuous advancement of technology, amine catalysts will play a more important role in green buildings and promote the development of the construction industry to a more environmentally friendly and efficient direction.

Through the detailed discussion in this article, we can see that polyurethane foam amine catalysts are not only a key additive in polyurethane foam production, but also an important driving force for the sustainable development of green buildings. Its excellent performance and environmental protection advantages make it occupy an irreplaceable position in modern buildings.

Application of polyurethane foam amine catalyst in high-performance sports soles

admin 3月 8th, 2025 News

Application of polyurethane foam amine catalyst in high-performance sports soles

Introduction

As people’s requirements for sports shoes continue to improve, polyurethane (PU) foam material has gradually become the first choice for high-performance sports soles due to its excellent elasticity, wear resistance and lightness. In the production process of polyurethane foam, the selection and use of catalysts have a crucial impact on the performance of the final product. This article will conduct in-depth discussion on the application of polyurethane foam amine catalyst in high-performance sports soles, covering its working principle, product parameters, performance advantages and practical application cases.

1. Basic concepts of polyurethane foam

1.1 Definition of polyurethane foam

Polyurethane foam is a polymer material produced by chemical reactions of polyols, isocyanates, catalysts, foaming agents and other additives. Its structure consists of hard and soft segments, which provide strength and rigidity, while the soft segments impart elasticity and flexibility to the material.

1.2 Classification of polyurethane foam

Depending on the foaming method, polyurethane foam can be divided into open-cell foam and closed-cell foam. Open-cell foam has good breathability and sound absorption properties, while closed-cell foam has high strength and thermal insulation properties. In high-performance sports soles, open-cell foam is often used to provide better cushioning and breathability.

2. The role of polyurethane foam amine catalyst

2.1 Basic functions of catalysts

Catalytics play a crucial role in the formation of polyurethane foam. They can accelerate the reaction between polyols and isocyanates and control the reaction rate, thereby affecting the density, hardness, elasticity and other properties of the foam.

2.2 Advantages of amine catalysts

Amine catalysts are a commonly used polyurethane foam catalysts, which have the following advantages:

High efficiency: Amines catalysts can significantly accelerate the reaction rate and shorten the production cycle.
Controlability: By adjusting the type and dosage of amine catalysts, the performance of the foam can be accurately controlled.
Environmentality: Some amine catalysts have low volatility and low toxicity, and meet environmental protection requirements.

2.3 Types of amine catalysts

Common amine catalysts include:

Catalytic Types	Main Ingredients	Features
Term amine catalyst	Triethylamine, dimethylamine	Efficient and low price
Ququaternary ammonium salt catalyst	Tetramethylammonium hydroxide	High activity, low volatility
Metal Organocatalyst	Organic tin, organic bismuth	High selectivity, environmental protection

III. Application of polyurethane foam amine catalyst in high-performance sports soles

3.1 Requirements for high-performance sports soles

High-performance sports soles require the following characteristics:

cushioning: effectively absorbs impact force and protects the feet.
Elasticity: Provides good rebound performance and enhances sports performance.
Abrasion Resistance: Extend the service life of the sole.
Lightness: Reduce the weight of the shoes and improve the comfort of wearing.
Breathability: Keep your feet dry and prevent odors.

3.2 Application of amine catalysts in sole production

In the production of high-performance sports soles, amine catalysts are mainly used in the following aspects:

3.2.1 Control reaction rate

By selecting the appropriate amine catalyst, the reaction rate of the polyol and isocyanate can be precisely controlled, thereby obtaining the ideal foam structure and performance. For example, the use of high-efficiency tertiary amine catalysts can shorten foaming time and improve production efficiency.

3.2.2 Adjusting foam density

The type and amount of amine catalyst have a significant impact on the density of the foam. By adjusting the ratio of the catalyst, foam of different densities can be obtained to meet the needs of different sports soles. For example, high-density foam is suitable for soles that require high strength and wear resistance, while low-density foam is suitable for soles that require lightweight and cushioning.

3.2.3 Improve foam performance

Amine catalysts can also improve the elasticity, wear resistance and breathability of foams. For example, the use of quaternary ammonium catalysts can improve the elasticity and resilience of the foam, and the use of metal organic catalysts can enhance the wear resistance and durability of the foam.

3.3 Practical Application Cases

The following are some practical application cases that demonstrate the specific application of amine catalysts in high-performance sports soles:

3.3.1 Case 1: Basketball soles

Basketball sports have high requirements for cushioning and elasticity of the soles. By using high-efficiency tertiary aminesThe chemical agent can generate highly elastic and high-cushioning polyurethane foam in a short period of time, effectively absorbing the impact force in basketball and protecting athletes’ feet.

3.3.2 Case 2: Running soles

The running soles need to be good lightweight and breathable. By using low-volatile quaternary ammonium catalysts, low-density, high-breathability polyurethane foam can be generated, reducing the weight of shoes, keeping the feet dry and improving running comfort.

3.3.3 Case 3: Mountaineering soles

Hiking soles need to be high strength and wear resistance. By using metal organic catalysts, high-density and high-strength polyurethane foam can be generated, which enhances the wear resistance and durability of the sole and adapts to complex mountain environments.

IV. Product parameters of polyurethane foam amine catalyst

4.1 Catalyst selection

When selecting an amine catalyst, the following parameters need to be considered:

parameters	Instructions
Activity	The higher the activity of the catalyst, the faster the reaction rate
Volatility	Low volatile catalysts are more environmentally friendly
Toxicity	Safety low toxic catalysts
Price	Price factors affect production costs

4.2 Dosage of catalyst

The amount of catalyst used has a significant impact on foam performance. Generally, the amount of catalyst is between 0.1% and 1%, and the specific amount needs to be adjusted according to production conditions and product requirements.

4.3 Catalyst ratio

In actual production, a combination of multiple catalysts is usually used to equilibrium the reaction rate and foam properties. For example, a high-efficiency tertiary amine catalyst can be used in combination with a low-volatile quaternary ammonium catalyst to obtain ideal reaction rates and foam properties.

V. Performance advantages of polyurethane foam amine catalyst

5.1 Improve production efficiency

The high efficiency of amine catalysts can significantly shorten foaming time, improve production efficiency, and reduce production costs.

5.2 Improve product performance

By precisely controlling the type and amount of catalyst, ideal foam performance can be obtained and meet the requirements of high-performance sports soles.

5.3 Environmental protection and safety

Some amine catalysts have low volatility and low toxicity, meet environmental protection and safety requirements, and reduceHazards to the environment and the human body.

VI. Future development trends

6.1 Research and development of new catalysts

With the continuous improvement of environmental protection and safety requirements, more low-volatility and low-toxicity new amine catalysts will be developed in the future to meet market demand.

6.2 Intelligent production

By introducing intelligent production technology, precise control and automated addition of catalysts can be achieved, and production efficiency and product consistency can be improved.

6.3 Multifunctional development

The future amine catalysts will not only be limited to catalytic functions, but will also have other functions, such as antibacterial and mildew, further improving the performance of sports soles.

Conclusion

The application of polyurethane foam amine catalyst in high-performance sports soles is of great significance. By rationally selecting and using amine catalysts, the cushioning, elasticity, wear resistance and lightness of sports shoes can be significantly improved, and the needs of different sports scenarios can be met. In the future, with the research and development of new catalysts and the introduction of intelligent production, the application of polyurethane foam amine catalysts in high-performance sports soles will be more extensive and in-depth.

New uses of DMEA dimethylethanolamine in solvent-free coating systems: balance between environmental protection and high efficiency

admin 3月 8th, 2025 News

New uses of DMEA dimethylamine in solvent-free coating systems: a balance between environmental protection and high efficiency

Introduction

As the global environmental awareness increases, the coatings industry is facing unprecedented challenges. Traditional solvent-based coatings release large amounts of volatile organic compounds (VOCs) during production and use, which not only cause pollution to the environment, but also pose a threat to human health. Therefore, the development of environmentally friendly coatings has become an important direction in the industry. As an environmentally friendly coating, solvent-free coatings are gradually favored by the market due to their advantages of low VOCs emissions and high efficiency performance. As a multifunctional additive, DMEA (dimethylamine) has shown unique advantages in solvent-free coating systems. This article will discuss in detail the new use of DMEA in solvent-free coatings and analyze its balance between environmental protection and high efficiency.

1. Basic characteristics of DMEA

1.1 Chemical structure and properties

DMEA (dimethylamine) is an organic compound with the chemical formula C4H11NO. It is a colorless to light yellow liquid with typical properties of amine compounds such as basic, hydrophilic and reactive. The molecular structure of DMEA contains a hydroxyl group (-OH) and an amino group (-NH2), which makes it have multiple functions in coating systems.

1.2 Product parameters

parameter name	Value/Description
Chemical formula	C4H11NO
Molecular Weight	89.14 g/mol
Appearance	Colorless to light yellow liquid
Density	0.89 g/cm³
Boiling point	134-136°C
Flashpoint	40°C
Solution	Easy soluble in organic solvents such as water, alcohols, ethers
pH value (1% aqueous solution)	11.5

1.3 Functional Characteristics

DMEA mainly has the following functions in coating systems:

Nelasticizer:DMEA can neutralize the acidic components in the coating, adjust the pH value of the system, and improve the stability of the coating.
Catalytics: DMEA can promote certain chemical reactions, such as the curing reaction of epoxy resins, and improve the curing efficiency of the coating.
Dispersant: DMEA can improve the dispersion of pigments and fillers, and improve the uniformity and gloss of the paint.
Plasticizer: DMEA can increase the flexibility of the paint and improve the mechanical properties of the coating.

2. Advantages and challenges of solvent-free coatings

2.1 Advantages of solvent-free coatings

Solvent-free coating refers to the uniform dispersion or dissolving of coating components in the system by physical or chemical methods without using organic solvents. Its main advantages include:

Environmentality: Solvent-free coatings contain almost no VOCs, reducing environmental pollution.
Safety: Solvent-free coatings reduce the risk of fire and explosion during production and use.
High efficiency: Solvent-free coatings usually have a high solids content, high coating efficiency, and reduce the number of coatings.
Durability: Coatings formed by solvent-free coatings usually have good weather resistance, chemical resistance and mechanical properties.

2.2 Challenges of solvent-free coatings

Although solvent-free coatings have many advantages, they still face some challenges in their practical applications:

Viscosity Control: Solvent-free coatings have high viscosity and are difficult to construct, requiring special construction equipment and technology.
Currency Rate: The curing rate of solvent-free coatings is slower, which affects production efficiency.
Cost: The raw materials and production costs of solvent-free coatings are relatively high, which limits its marketing promotion.

III. Application of DMEA in solvent-free coatings

3.1 Application as a neutralizer

In solvent-free coatings, DMEA as a neutralizer can adjust the pH value of the system and improve the stability of the coating. For example, in an epoxy resin system, DMEA can neutralize the acidic components in the resin to prevent gelation of the resin during storage. In addition, DMEA can neutralize the acidic catalyst in the coating and extend the application period of the coating.

3.1.1 Application Cases

Coating Type	DMEA addition amount (%)	Effect Description
Epoxy resin coating	0.5-1.0	Improve the stability of the coating and extend the applicable period
Polyurethane coating	0.3-0.8	Adjust pH value to improve coating gloss
Acrylic Paints	0.2-0.5	Nelastic acidic ingredients to prevent gelation

3.2 Application as a catalyst

DMEA can also be used as a catalyst in solvent-free coatings to promote the progress of certain chemical reactions. For example, in the curing reaction of epoxy resin, DMEA can accelerate the reaction between the resin and the curing agent and improve the curing efficiency of the coating. In addition, DMEA can also promote the reaction between isocyanate and hydroxyl groups in polyurethane coatings, and shorten the drying time of the coating.

3.2.1 Application Cases

Coating Type	DMEA addition amount (%)	Effect Description
Epoxy resin coating	0.2-0.5	Accelerate the curing reaction and improve production efficiency
Polyurethane coating	0.1-0.3	Promote isocyanate reaction and shorten drying time
Acrylic Paints	0.1-0.2	Improve the hardness of the coating and improve wear resistance

3.3 Application as a dispersant

DMEA can also act as a dispersant in solvent-free coatings to improve the dispersion of pigments and fillers. Through the dispersion of DMEA, the pigments and fillers in the coating can be evenly dispersed in the system, improving the uniformity and gloss of the coating. In addition, DMEA can prevent pigments and fillers from settled during storage, extending the storage stability of the paint.

3.3.1 Application Cases

Coating Type	DMEA addition amount (%)	Effect Description
Epoxy resin coating	0.3-0.7	Improve pigment dispersion and improve coating gloss
Polyurethane coating	0.2-0.5	Prevent filler settlement and extend storage stability
Acrylic Paints	0.1-0.3	Improve paint uniformity and improve the appearance of the coating

3.4 Application as a plasticizer

DMEA can also be used as a plasticizer in solvent-free coatings to increase the flexibility of the coating and improve the mechanical properties of the coating film. Through the plasticization of DMEA, the coating formed by the coating after curing has good flexibility and impact resistance, and is suitable for occasions where high mechanical properties are required.

3.4.1 Application Cases

Coating Type	DMEA addition amount (%)	Effect Description
Epoxy resin coating	0.5-1.0	Improve the flexibility of the coating and improve impact resistance
Polyurethane coating	0.3-0.8	Increase the elasticity of the coating and improve wear resistance
Acrylic Paints	0.2-0.5	Improve the ductility of the coating and improve crack resistance

IV. Environmental protection and efficient balance of DMEA in solvent-free coatings

4.1 Environmental protection

The application of DMEA in solvent-free coatings has significantly improved the environmental protection of the coatings. First, DMEA itself is a low toxic compound, and its use does not cause significant harm to the environment and human health. Secondly, as a neutralizing agent, catalyst, dispersing agent and plasticizer, DMEA can reduce the use of harmful substances in the coating and reduce the VOCs emissions of the coating. In addition, DMEA can improve the stability of the paint, reduce the waste of paint during storage and use, and further reduce the impact on the environment.

4.2 Efficiency

The application of DMEA in solvent-free coatings also significantly improves the efficiency of the coatings. first, DMEA as a catalyst can accelerate the curing reaction of the coating and improve production efficiency. Secondly, DMEA as a dispersant can improve the uniformity and gloss of the paint and improve the construction efficiency of the paint. In addition, DMEA as a plasticizer can improve the mechanical properties of the coating film, extend the service life of the coating, reduce the frequency of the coating replacement, and further improve the economicality of the coating.

4.3 Equilibrium

The application of DMEA in solvent-free coatings achieves a balance between environmental protection and high efficiency. Through the multifunctional effect of DMEA, solvent-free coatings improve the construction efficiency and usage performance of the coating while maintaining low VOCs emissions. This balance not only meets the requirements of environmental protection regulations, but also improves the market competitiveness of coatings and promotes the sustainable development of the coating industry.

V. Future Outlook of DMEA in Solvent-Free Coatings

5.1 Technological Innovation

With the continuous development of coating technology, DMEA will be more widely used in solvent-free coatings. In the future, DMEA may combine with other functional additives to develop more high-performance solvent-free coating products. For example, DMEA can be combined with nanomaterials to improve the wear and weather resistance of coatings; DMEA can also be combined with bio-based materials to develop more environmentally friendly coating products.

5.2 Marketing

As the increasing strict environmental regulations, the market demand for solvent-free coatings will continue to increase. As a multifunctional additive, DMEA will play an important role in the marketing of solvent-free coatings. In the future, the production cost of DMEA may be further reduced, making its application in solvent-free coatings more economical and feasible. In addition, DMEA’s environmental protection and efficiency will also attract the attention of more paint companies and promote the popularization of solvent-free paint market.

5.3 Sustainable Development

The application of DMEA in solvent-free coatings is in line with the concept of sustainable development. Through the multifunctional effect of DMEA, solvent-free coatings maintain environmental protection while improving the efficiency and economicality of the coating. In the future, DMEA will continue to play an important role in the coatings industry and promote the coatings industry to develop in a more environmentally friendly, efficient and sustainable direction.

Conclusion

DMEA (dimethylamine) as a multifunctional additive shows unique advantages in solvent-free coating systems. Through the neutralization, catalytic, dispersing and plasticizing effects of DMEA, solvent-free coatings improve the construction efficiency and use performance of the coating while maintaining low VOCs emissions. The application of DMEA in solvent-free coatings has achieved a balance between environmental protection and high efficiency, and has promoted the sustainable development of the coating industry. In the future, with the continuous innovation of technology and the continuous promotion of the market, DMEA will be more widely used in solvent-free coatings, bringing more opportunities and challenges to the coating industry.

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