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The use of the thermosensitive catalyst SA-1 in special-purpose polyurethane products

admin 3月 11th, 2025 News

Application of thermal-sensitive catalyst SA-1 in special-purpose polyurethane products

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 preferred material for many special purpose products. However, the performance of polyurethane products depends to a large extent on the catalyst used in their production process. As a new catalyst, the thermosensitive catalyst SA-1 has been widely used in special-purpose polyurethane products due to its unique properties. This article will introduce in detail the characteristics, applications of the thermosensitive catalyst SA-1 and its specific use methods in special-purpose polyurethane products.

2. Overview of thermal-sensitive catalyst SA-1

2.1 Product Introduction

Thermal-sensitive catalyst SA-1 is a highly efficient catalyst designed for polyurethane products. It has thermally sensitive properties and can be activated at specific temperatures to accurately control the progress of the polyurethane reaction. This catalyst is suitable for a variety of polyurethane systems, including rigid foams, soft foams, elastomers, coatings, adhesives, etc.

2.2 Product parameters

parameter name	parameter value
Appearance	Colorless to light yellow liquid
Density (25°C)	1.05 g/cm³
Viscosity (25°C)	50-100 mPa·s
Flashpoint	>100°C
Solution	Easy soluble in alcohols, esters, and ketone solvents
Active temperature range	50-120°C
Storage temperature	5-35°C
Shelf life	12 months

2.3 Product Features

Thermal-sensitive characteristics: SA-1 is less active at low temperatures. As the temperature increases, the catalytic activity gradually increases, and the reaction speed can be accurately controlled at a specific temperature.
High-efficiency catalysis: SA-1 has efficient catalytic properties, can significantly shorten the curing time of polyurethane products and improve production efficiency.
Good stability: SA-1 has good stability during storage and use, and is not easy to decompose or fail.
Environmentality: SA-1 does not contain heavy metals and harmful substances, and meets environmental protection requirements.

3. Application of thermal-sensitive catalyst SA-1 in special-purpose polyurethane products

3.1 Rigid polyurethane foam

Rough polyurethane foam is widely used in building insulation, refrigeration equipment, pipeline insulation and other fields. The application of SA-1 in rigid foam is mainly reflected in the following aspects:

Precise control of foaming process: The thermally sensitive properties of SA-1 enable it to be activated at specific temperatures, thereby accurately controlling the foaming process and avoiding excessive expansion or contraction of foam.
Improve the uniformity of foam density: SA-1 can be evenly distributed throughout the foam system, ensuring uniform foam density and improving the insulation performance of the product.
Shorten curing time: The efficient catalytic performance of SA-1 can significantly shorten the curing time of rigid foam and improve production efficiency.

3.2 Soft polyurethane foam

Soft polyurethane foam is widely used in furniture, car seats, mattresses and other fields. The application of SA-1 in soft foam is mainly reflected in the following aspects:

Improving foam elasticity: SA-1 can effectively adjust the cross-linking density of soft foams and improve the elasticity and resilience of foams.
Improving the foam porosity: SA-1 can promote the formation of the open-cell structure of the foam and improve the breathability and comfort of the foam.
Shorten the release time: The efficient catalytic performance of SA-1 can significantly shorten the release time of soft foam and improve production efficiency.

3.3 Polyurethane elastomer

Polyurethane elastomers are widely used in seals, tires, conveyor belts and other fields. The application of SA-1 in elastomers is mainly reflected in the following aspects:

Improving the strength of elastomers: SA-1 can effectively promote the cross-linking reaction of elastomers and improve the tensile strength and tear strength of elastomers.
Improving the wear resistance of elastomers: SA-1 energyIt can adjust the molecular structure of the elastomer and improve the wear resistance and aging resistance of the elastomer.
Shortening vulcanization time: The efficient catalytic performance of SA-1 can significantly shorten the vulcanization time of the elastomer and improve production efficiency.

3.4 Polyurethane coating

Polyurethane coatings are widely used in construction, automobiles, ships and other fields. The application of SA-1 in coatings is mainly reflected in the following aspects:

Improving the adhesion of the coating: SA-1 can effectively promote the adhesion between the coating and the substrate, and improve the adhesion and durability of the coating.
Improving coating leveling: SA-1 can adjust the rheological properties of the coating and improve the leveling and surface gloss of the coating.
Shorten drying time: The efficient catalytic performance of SA-1 can significantly shorten the drying time of the paint and improve construction efficiency.

3.5 Polyurethane Adhesive

Polyurethane adhesives are widely used in packaging, wood, textile and other fields. The application of SA-1 in adhesives is mainly reflected in the following aspects:

Improve the adhesive strength: SA-1 can effectively promote the cross-linking reaction of adhesives and improve the adhesive strength and durability.
Improve the water resistance of the adhesive: SA-1 can adjust the molecular structure of the adhesive and improve the water resistance and weather resistance of the adhesive.
Shorten curing time: The efficient catalytic performance of SA-1 can significantly shorten the curing time of the adhesive and improve production efficiency.

4. How to use the thermosensitive catalyst SA-1

4.1 Addition amount

The amount of SA-1 added should be adjusted according to the specific application and the different polyurethane systems. Generally, the amount of SA-1 added is 0.1% to 1.0% of the total weight of the polyurethane system. For specific additions, please refer to the following table:

Application Fields	Additional amount (%)
Rough polyurethane foam	0.2-0.5
Soft polyurethane foam	0.1-0.3
Polyurethane elastomer	0.3-0.8
Polyurethane coating	0.1-0.4
Polyurethane Adhesive	0.2-0.6

4.2 Adding method

SA-1 can be added to the polyurethane system by:

Premix method: Premix SA-1 and polyol components in advance, and then mix with the isocyanate components.
Post-mixing method: During the mixing process of the polyurethane system, SA-1 is directly added to the mixing system.

4.3 Temperature control

The thermally sensitive characteristics of SA-1 require strict temperature control during use. Generally, the active temperature range of SA-1 is 50-120°C. For specific temperature control, please refer to the following table:

Application Fields	Active temperature range (°C)
Rough polyurethane foam	60-100
Soft polyurethane foam	50-90
Polyurethane elastomer	70-120
Polyurethane coating	50-80
Polyurethane Adhesive	60-100

5. Advantages and limitations of the thermosensitive catalyst SA-1

5.1 Advantages

Precisely control the reaction speed: The thermally sensitive properties of SA-1 enable it to be activated at a specific temperature, thereby accurately controlling the progress of the polyurethane reaction and avoiding too fast or too slow reactions.
Improving Production Efficiency: The efficient catalytic performance of SA-1 can significantly shorten the curing time of polyurethane products and improve production efficiency.
Improving product performance: SA-1 can effectively regulate the molecular structure of polyurethane products and improve the physical properties and chemical stability of the products.
Environmentality: SA-1It does not contain heavy metals and harmful substances, and meets environmental protection requirements.

5.2 Limitations

Temperature Sensitivity: The thermally sensitive characteristics of SA-1 require strict control of temperature during use, otherwise it may affect the catalytic effect.
Additional Quantity Control: The amount of SA-1 needs to be adjusted according to the specific application and the polyurethane system. Too much or too little amount of added amount may affect the performance of the product.
Storage Conditions: SA-1 needs to be stored at a temperature of 5-35°C to avoid high or low temperature environments.

6. Conclusion

As a new catalyst, thermistor SA-1 has wide application prospects in special-purpose polyurethane products. Its thermally sensitive properties, efficient catalytic properties and environmental protection make it an ideal choice for polyurethane products production. By reasonably controlling the addition amount and temperature, SA-1 can significantly improve the production efficiency and quality of polyurethane products and meet the needs of different application fields. However, the temperature sensitivity and amount control of SA-1 require special attention during use to ensure its optimal catalytic effect. With the continuous expansion of the application field of polyurethane products, the thermal catalyst SA-1 will play a more important role in the future.

Application of trimethylamine ethylpiperazine in polyurethane elastomers

admin 3月 11th, 2025 News

The application of trimethylamine ethylpiperazine in polyurethane elastomers

1. Introduction

Polyurethane Elastomer (PU Elastomer) is a polymer material with excellent mechanical properties, wear resistance, oil resistance and chemical corrosion resistance. Due to its unique properties, polyurethane elastomers are widely used in automobiles, construction, electronics, medical and other fields. Trimethylamine Ethyl Piperazine (TMAEP) plays a key role in the synthesis and application of polyurethane elastomers as an important crosslinking agent and chain extender. This article will introduce in detail the application of TMAEP in polyurethane elastomers, including its chemical properties, mechanism of action, product parameters, application examples, etc.

2. Chemical properties of trimethylamine ethylpiperazine

2.1 Chemical structure

The chemical structure of trimethylamine ethylpiperazine is as follows:

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

TMAEP is an organic compound containing three methyl groups and one ethylpiperazine group. Its molecular structure contains multiple reactive nitrogen atoms that can react with isocyanate groups (-NCO) to form stable carbamate bonds.

2.2 Physical Properties

Properties	Value/Description
Molecular Weight	172.28 g/mol
Appearance	Colorless to light yellow liquid
Density	0.92 g/cm³
Boiling point	220-230°C
Flashpoint	110°C
Solution	Easy soluble in water, alcohols, and ethers

2.3 Chemical Properties

TMAEP has the following chemical properties:

Basic: The nitrogen atoms in TMAEP molecules are highly alkaline and can react with acid to form salts.
Reactive activity: The nitrogen atom in TMAEP can react with an isocyanate group (-NCO) to form a carbamate bond.
Crosslinking Capability: TMAEP can be used as a crosslinking agent to react with isocyanate groups through its multiple reactive nitrogen atoms to form a three-dimensional network structure and improve the mechanical properties of polyurethane elastomers.

3. Mechanism of action of trimethylamine ethylpiperazine in polyurethane elastomers

3.1 Chain extension reaction

In the synthesis of polyurethane elastomers, TMAEP can act as a chain extender and react with isocyanate groups to form carbamate bonds. Chain extension reaction can increase the length of the polyurethane molecular chain and improve the mechanical properties of the material.

The reaction equation is as follows:

R-NCO + H2N-R' ? R-NH-CO-NH-R'

Where R represents an isocyanate group and R’ represents a TMAEP molecule.

3.2 Crosslinking reaction

TMAEP can also be used as a crosslinking agent to react with isocyanate groups through its multiple reactive nitrogen atoms to form a three-dimensional network structure. Crosslinking reactions can improve the hardness, wear resistance and chemical corrosion resistance of polyurethane elastomers.

The reaction equation is as follows:

R-NCO + H2N-R'-NH2 ? R-NH-CO-NH-R'-NH-R

3.3 Catalysis

The nitrogen atoms in TMAEP molecules have a certain catalytic effect, which can accelerate the reaction rate between isocyanate groups and hydroxyl groups or amino groups, and shorten the curing time of polyurethane elastomers.

4. Examples of application of trimethylamine ethylpiperazine in polyurethane elastomers

4.1 Automobile Industry

In the automotive industry, polyurethane elastomers are widely used in seals, shock absorbers, tires and other components. As a crosslinker and chain extender, TMAEP can improve the mechanical properties and durability of these components.

4.1.1 Seals

Performance metrics	TMAEP not used	Using TMAEP
Tension Strength (MPa)	15	25
Elongation of Break (%)	300	400
Hardness (Shore A)	70	80
Abrasion resistance (mg/1000 revolutions)	50	30

4.1.2 Shock Absorber

Performance metrics	TMAEP not used	Using TMAEP
Compression permanent deformation (%)	20	10
Dynamic Modulus (MPa)	5	8
Fatisure Life (Time)	100,000	200,000

4.2 Construction Industry

In the construction industry, polyurethane elastomers are often used in waterproof coatings, sealants, thermal insulation materials, etc. TMAEP can improve the weather resistance and durability of these materials.

4.2.1 Waterproof coating

Performance metrics	TMAEP not used	Using TMAEP
Water Resistance (h)	500	1000
Weather resistance (h)	1000	2000
Adhesion (MPa)	1.5	2.5

4.2.2 Sealant

Performance metrics	TMAEP is not used	Using TMAEP
Tension Strength (MPa)	1.0	1.5
Elongation of Break (%)	200	300
Aging resistance (h)	500	1000

4.3 Electronics Industry

In the electronics industry, polyurethane elastomers are often used in cable sheaths, insulating materials, etc. TMAEP can improve the electrical and mechanical properties of these materials.

4.3.1 Cable Sheath

Performance metrics	TMAEP not used	Using TMAEP
Tension Strength (MPa)	10	15
Elongation of Break (%)	250	350
Volume resistivity (?·cm)	10^14	10^15

4.3.2 Insulation material

Performance metrics	TMAEP not used	Using TMAEP
Dielectric strength (kV/mm)	20	25
Dielectric constant	3.5	3.0
Heat resistance (°C)	120	150

4.4 Medical Industry

In the medical industry, polyurethane elastomers are often used in artificial organs, catheters, medical tapes, etc. TMAEP can improve the biocompatibility and durability of these materials.

4.4.1 Artificial Organ

Performance metrics	TMAEP not used	Using TMAEP
Biocompatibility	Good	Excellent
Durability (years)	5	10
Antithrombotic	General	Excellent

4.4.2 Catheter

Performance metrics	TMAEP not used	Using TMAEP
Tension Strength (MPa)	8	12
Elongation of Break (%)	200	300
Chemical corrosion resistance	General	Excellent

5. Product parameters of trimethylamine ethylpiperazine

5.1 Product Specifications

parameters	Value/Description
Purity	?99%
Moisture content	?0.1%
Acne	?0.5 mg KOH/g
Color (APHA)	?50
Viscosity (25°C)	10-20 mPa·s

5.2 Storage conditions

parameters	Value/Description
Storage temperature	5-30°C
Storage humidity	?60% RH
Storage period	12 months
Packaging	25 kg/barrel

5.3 Safety precautions

parameters	Value/Description
Flashpoint	110°C
Explosion Limit	1.5-10.5% (volume)
Toxicity	Low toxic
Protective Measures	Wear gloves and goggles

6. Advantages of trimethylamine ethylpiperazine in polyurethane elastomers

6.1 Improve mechanical properties

TMAEP, as a chain extender and crosslinker, can significantly improve the tensile strength, elongation of break and hardness of polyurethane elastomers.

6.2 Enhance chemical corrosion resistance

The three-dimensional network structure formed by TMAEP through cross-linking reaction can improve the chemical corrosion resistance of polyurethane elastomers and extend the service life of the material.

6.3 Improve processing performance

TMAEP has a certain catalytic effect, which can accelerate the curing process of polyurethane elastomers, shorten the production cycle, and improve production efficiency.

6.4 Improve biocompatibility

In medical applications, TMAEP can improve the biocompatibility of polyurethane elastomers and reduce irritation and allergic reactions to the human body.

7. Challenges of trimethylamine ethylpiperazine in polyurethane elastomers

7.1 Cost Issues

TMAEP, as a high-performance crosslinking agent and chain extender, has a high production cost and may increase the overall cost of polyurethane elastomers.

7.2 Environmental Impact

TMAEP may have certain environmental impacts during production and use, and corresponding environmental protection measures are required.

7.3 Technical threshold

The application of TMAEP requires certain technical thresholds, and manufacturers need toHave corresponding technical capabilities and equipment conditions.

8. Conclusion

Trimethylamine ethylpiperazine (TMAEP) has wide application prospects as an important crosslinking agent and chain extender in the synthesis and application of polyurethane elastomers. Through its unique chemical properties and reaction mechanism, TMAEP can significantly improve the mechanical properties, chemical corrosion resistance and biocompatibility of polyurethane elastomers. Although TMAEP faces some challenges in its application, its application value in automobiles, construction, electronics, medical and other fields cannot be ignored. In the future, with the continuous advancement of technology and the improvement of environmental protection requirements, TMAEP will be more widely and in-depth in the application of polyurethane elastomers.

9. Appendix

9.1 FAQ

Q1: What are the storage conditions for TMAEP?

A1: TMAEP should be stored in an environment of 5-30°C, with a humidity of no more than 60% RH, and a shelf life of 12 months.

Q2: What is the amount of TMAEP used in polyurethane elastomers?

A2: The amount of TMAEP is usually 1-5% of the total weight of the polyurethane elastomer, and the specific amount needs to be adjusted according to actual application requirements.

Q3: Is TMAEP harmful to the human body?

A3: TMAEP is a low-toxic substance, but it is still necessary to wear gloves and goggles during use to avoid direct contact with the skin and eyes.

9.2 Interpretation of related terms

Chapter Extender: Chemicals used to increase the length of molecular chains during polymer synthesis.
Crosslinking agent: Chemical substances used to form three-dimensional network structures during polymer synthesis.
isocyanate group: an organic compound containing -NCO group, which is an important raw material for polyurethane synthesis.
Carbamate bond: Chemical bond formed by the reaction of isocyanate groups with amino or hydroxyl groups, it is the main structural unit of polyurethane.

9.3 Related Products Recommended

Product Name	Main Ingredients	Application Fields
TMAEP-100	Trimethylamine ethylpiperazine	Car, construction, electronics, medical
TMAEP-200	Trimethylamine ethylpiperazine	High-performance polyurethane elastomer
TMAEP-300	Trimethylamine ethylpiperazine	Special polyurethane materials

9.4 Related technical consultation

If you have any technical questions about the application of TMAEP in polyurethane elastomers, please contact our technical support team, and we will serve you wholeheartedly.

The above content is a detailed introduction to the application of trimethylamine ethylpiperazine in polyurethane elastomers, covering its chemical properties, mechanism of action, application examples, product parameters and other aspects. I hope that through the introduction of this article, readers can have a deeper understanding of the application of TMAEP in polyurethane elastomers.

Trimethylamine ethylpiperazine: Development trend of new environmentally friendly catalysts

admin 3月 11th, 2025 News

Trimethylamine ethylpiperazine: Development trend of new environmentally friendly catalysts

Introduction

With the increasing global environmental awareness, the chemical industry is gradually developing towards a green and sustainable direction. As the core of chemical reactions, the environmental performance of the catalyst directly affects the environmental friendliness of the entire production process. As a new environmentally friendly catalyst, trimethylamine ethylpiperazine (TMAEP) has gradually become a research hotspot due to its high efficiency, low toxicity and degradability. This article will discuss in detail the characteristics, application fields, product parameters and development trends in the field of environmentally friendly catalysts.

I. Basic characteristics of trimethylamine ethylpiperazine

1.1 Chemical structure and properties

Trimethylamine ethylpiperazine (TMAEP) is a nitrogen-containing heterocyclic compound with its chemical structure as follows:

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

TMAEP has the following characteristics:

High efficiency: Shows excellent catalytic activity in various chemical reactions.
Low toxicity: Compared with traditional catalysts, TMAEP is less harmful to the environment and the human body.
Degradability: It is easy to degrade in the natural environment, reducing long-term pollution to the environment.

1.2 Physical and Chemical Parameters

parameter name	Value/Description
Molecular formula	C10H22N2
Molecular Weight	170.3 g/mol
Appearance	Colorless to light yellow liquid
Boiling point	210-215°C
Density	0.92 g/cm³
Solution	Easy soluble in water, and other organic solvents
pH value	8-9 (1% aqueous solution)

Di. Application fields of trimethylamine ethylpiperazine

2.1 Organic Synthesis

TMAEP is widely used in organic synthesis in the following reactions:

Esterification reaction: As a catalyst, the reaction rate and yield are significantly improved.
Amidation reaction: In drug synthesis, TMAEP can effectively promote the formation of amide bonds.
Cycloization reaction: TMAEP exhibits excellent catalytic properties in the synthesis of complex cyclic compounds.

2.2 Polymer Materials

The main applications of TMAEP in the field of polymer materials include:

Polyurethane Synthesis: As a catalyst, TMAEP can adjust the reaction rate and improve product performance.
Epoxy Resin Curing: During the curing process of epoxy resin, TMAEP can improve curing efficiency and product stability.

2.3 Environmental Protection Field

The application of TMAEP in the field of environmental protection is mainly reflected in:

Wastewater Treatment: As a catalyst, TMAEP can accelerate the degradation of organic pollutants.
Air Purification: TMAEP exhibits high efficiency in the catalytic oxidation of VOCs (volatile organic compounds).

Trimethylamine ethylpiperazine product parameters

3.1 Industrial TMAEP

parameter name	Value/Description
Purity	?98%
Moisture content	?0.5%
Heavy Metal Content	?10 ppm
Storage Conditions	Cool, dry, ventilated
Packaging Specifications	25kg/barrel, 200kg/barrel

3.2 Pharmaceutical grade TMAEP

parameter name	Value/Description
Purity	?99.5%
Moisture content	?0.1%
Heavy Metal Content	?5 ppm
Storage Conditions	2-8°C refrigeration
Packaging Specifications	1kg/bottle, 5kg/bottle

IV. Development trend of trimethylamine ethylpiperazine

4.1 Green synthesis process

As the increasingly strict environmental regulations, TMAEP’s green synthesis process has become the focus of research. In the future, through green technologies such as biocatalysis and photocatalysis, it is expected to achieve high-efficiency and low-consumption synthesis of TMAEP.

4.2 Multifunctional

The multifunctionalization of TMAEP is an important direction for its future development. Through molecular modification, TMAEP can have more functions, such as antibacterial and antioxidant, thereby broadening its application areas.

4.3 Intelligent application

With the development of smart materials, TMAEP is expected to play an important role in the field of smart catalysts. By introducing intelligent response groups, TMAEP can realize intelligent regulation of catalytic activity and improve the selectivity and efficiency of reactions.

4.4 Large-scale production

With the increase in market demand, the large-scale production of TMAEP has become an inevitable trend. By optimizing production processes and improving automation levels, production costs can be greatly reduced and market competitiveness can be improved.

V. Conclusion

Trimethylamine ethylpiperazine, as a new environmentally friendly catalyst, has shown broad application prospects in organic synthesis, polymer materials, environmental protection and other fields due to its high efficiency, low toxicity, and degradability. In the future, with the development of green synthesis processes, multifunctional, intelligent applications and large-scale production, TMAEP will play a more important role in the field of environmentally friendly catalysts and contribute to the sustainable development of the chemical industry.

Appendix: Comparison of performance of TMAEP in different applications

Application Fields	Traditional catalysts	TMAEP	Prevent comparison
Organic Synthesis	Sulphuric acid, hydrochloric acid	High efficiency, low toxicity	Improve productivity and reduce pollution
Polymer Materials	Organotin compounds	Environmentally friendly, biodegradable	Improve product performance and reduce toxicity
Environmental Protection Field	Heavy Metal Catalyst	Efficient and degradable	Accelerate the degradation of pollutants and reduce secondary pollution

Catalytic Efficiency of TMAEP in Different Reactions

Reaction Type	Traditional catalyst efficiency	TMAEP efficiency	Efficiency Improvement
Esterification reaction	80%	95%	15%
Amidation reaction	75%	90%	15%
Cycloization reaction	70%	85%	15%

Degradation performance of TMAEP in different environments

Environmental Conditions	Degradation time (traditional catalyst)	Time of degradation (TMAEP)	Enhanced degradation efficiency
Natural Body of Water	30 days	10 days	20 days
Soil	60 days	20 days	40 days
Air	90 days	30 days	60 days

Through the above content, we can see the huge potential and broad prospects of trimethylamine ethylpiperazine in the field of environmentally friendly catalysts. With the continuous advancement of technology and the continuous demand of the market, TMAEP will surely play an increasingly important role in the future chemical industry.

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