The leader of China special amines-

Articles tagged with: N

Home / N

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

N,N,N’,N”,N”-pentamethyldipropylene triamine: Provides technical support for the manufacture of high-strength polyurethane adhesives

3月 12th, 2025 News

N,N,N’,N”,N”-pentamethyldipropylene triamine: Provides technical support for the manufacture of high-strength polyurethane adhesives

Introduction

In modern industry, polyurethane adhesives are widely used in construction, automobile, electronics, packaging and other fields due to their excellent bonding properties, chemical resistance and mechanical strength. However, with the diversification of application scenarios and the improvement of material performance requirements, traditional polyurethane adhesives have become unscrupulous in certain high-demand occasions. To meet these needs, scientists have been constantly exploring new materials and technologies, among which N,N,N’,N”,N”-pentamethyldipropylene triamine (hereinafter referred to as pentamethyldipropylene triamine) is a new catalyst and crosslinker, providing strong technical support for the manufacture of high-strength polyurethane adhesives.

This article will introduce in detail the chemical properties of pentamethyldipropylene triamine, its mechanism of action in polyurethane adhesives, product parameters and its performance in practical applications. Through rich forms and easy-to-understand language, readers can fully understand the importance and application prospects of this material.

1. Chemical properties of pentamethyldipropylene triamine

1.1 Chemical structure

The chemical formula of pentamethyldipropylene triamine is C11H23N3, and its molecular structure is as follows:

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

Structurally, pentamethyldipropylene triamine is an organic compound containing three nitrogen atoms, each with a methyl group attached to it. This structure imparts unique chemical properties to the compound, allowing it to exhibit excellent catalytic activity and crosslinking ability in the polyurethane reaction.

1.2 Physical Properties

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

Properties value
Molecular Weight 197.32 g/mol
Density 0.89 g/cm³
Boiling point 220-230°C
Flashpoint 95°C
Solution Easy soluble in water and organic solvents

1.3 Chemical Properties

Penmethyldipropylene triamine has the following chemical properties:

  • Basic: Since the molecule contains three nitrogen atoms, pentamethyldipropylene triamine is highly alkaline and can react with acid to form salts.
  • Catalytic Activity: In polyurethane reaction, pentamethyldipropylene triamine can effectively catalyze the reaction between isocyanate and polyol, and accelerate the polymerization process.
  • Crosslinking capability: Pentamethyldipropylene triamine can react with isocyanate to form a three-dimensional network structure, improving the mechanical strength and chemical resistance of polyurethane materials.

Diagram of action of pentamethyldipropylene triamine in polyurethane adhesive

2.1 Catalysis

In the preparation of polyurethane adhesive, the reaction of isocyanate and polyol is a key step. Pentamethyldipropylene triamine, as an efficient catalyst, can significantly accelerate this reaction. Its mechanism of action is as follows:

  1. Activated isocyanate: The nitrogen atoms in pentamethyldipropylene triamine can form coordination bonds with the carbon atoms in isocyanate, thereby activating isocyanate molecules and making them easier to react with polyols.
  2. Promote reaction equilibrium: Pentamethyldipropylene triamine can adjust the pH value of the reaction system, promote the reaction in the direction of polyurethane generation, and improve the reaction efficiency.

2.2 Crosslinking

Penmethyldipropylene triamine can not only catalyze the polyurethane reaction, but also participate in the reaction as a crosslinker. The mechanism of cross-linking is as follows:

  1. Reaction with isocyanate: The nitrogen atom in pentamethyldipropylene triamine can react with isocyanate to form urea bonds or carbamate bonds, thereby forming a crosslinking point between the polyurethane molecular chains.
  2. Form a three-dimensional network structure: Through cross-linking reaction, pentamethyldipropylene triamine can connect linear polyurethane molecular chains into a three-dimensional network structure, significantly improving the mechanical strength and chemical resistance of the material.

2.3 Improve adhesive performance

The application of pentamethyldipropylene triamine in polyurethane adhesives can also significantly improve the adhesive properties. Its mechanism of action is as follows:

  1. Enhanced interface binding force: Pentamethyldipropylene triamine can react with active groups on the surface of the substrate to form chemical bonds, thereby enhancing the interface binding force between the adhesive and the substrate.
  2. Enhance the innerPolyst strength: Through cross-linking, pentamethyldipropylene triamine can improve the cohesive strength of polyurethane adhesives, making it less likely to break when under stress.

Product parameters of trimethoxydipropylene triamine

3.1 Product Specifications

The product specifications of pentamethyldipropylene triamine are as follows:

parameters value
Appearance Colorless to light yellow liquid
Purity ?99%
Moisture content ?0.1%
Acne ?0.1 mg KOH/g
Amine Value 280-320 mg KOH/g
Viscosity (25°C) 10-15 mPa·s
Density (25°C) 0.89 g/cm³
Flashpoint 95°C
Boiling point 220-230°C

3.2 Recommendations for use

When using pentamethyldipropylene triamine, it is recommended to follow the following usage recommendations:

  1. Additional amount: The amount of pentamethyldipropylene triamine is usually 0.5-2.0% of the total weight of the polyurethane adhesive. The specific amount of addition should be adjusted according to actual application requirements.
  2. Mixing method: Pentamethyldipropylene triamine should be fully mixed with other raw materials to ensure that it is evenly distributed in the reaction system.
  3. Reaction conditions: The catalytic activity of pentamethyldipropylene triamine is greatly affected by temperature, and it is recommended to conduct reactions within the temperature range of 25-50°C.

The performance of tetramethyldipropylene triamine in practical applications

4.1 Construction Field

In the field of construction, polyurethane adhesives are widely used in wall insulation, floor laying, curtain wall installation and other occasions. The introduction of pentamethyldipropylene triamine significantly improvedThe bonding strength and durability of polyurethane adhesives. For example, in wall insulation systems, the use of pentamethyldipropylene triamine modified polyurethane adhesive can effectively prevent the insulation material from falling off and extend the service life of the building.

4.2 Automotive field

In automobile manufacturing, polyurethane adhesives are used in occasions such as body structure bonding and interior parts fixing. The application of pentamethyldipropylene triamine allows polyurethane adhesives to maintain good bonding properties in harsh environments such as high temperature and high humidity. For example, in body structure bonding, the use of pentamethyldipropylene triamine modified polyurethane adhesive can significantly improve the impact resistance and durability of the vehicle body.

4.3 Electronics Field

In the electronic field, polyurethane adhesives are used in circuit board packaging, electronic component fixation and other occasions. The introduction of pentamethyldipropylene triamine allows polyurethane adhesive to maintain good bonding properties under harsh environments such as high temperature and high humidity. For example, in circuit board packages, the use of pentamethyldipropylene triamine modified polyurethane adhesive can effectively prevent the circuit board from getting damp and improve the reliability of electronic products.

4.4 Packaging Field

In the packaging field, polyurethane adhesives are used in carton sealing, label pasting and other occasions. The application of pentamethyldipropylene triamine allows polyurethane adhesives to maintain good bonding performance on high-speed production lines. For example, in carton seals, the use of pentamethyldipropylene triamine modified polyurethane adhesive can significantly increase the seal strength and prevent the carton from cracking during transportation.

The future development of pentamethyldipropylene triamine

5.1 Green and environmentally friendly

With the increase in environmental awareness, green and environmentally friendly polyurethane adhesives have become the trend of future development. As a highly efficient catalyst and crosslinking agent, pentamethyldipropylene triamine can realize polyurethane reaction at lower temperatures, reducing energy consumption and environmental pollution. In the future, pentamethyldipropylene triamine is expected to be more widely used in green and environmentally friendly polyurethane adhesives.

5.2 High performance

With the diversification of application scenarios and the improvement of material performance requirements, high performance has become an important direction for the development of polyurethane adhesives. Pentamethyldipropylene triamine can significantly improve the mechanical strength, chemical resistance and durability of polyurethane adhesives through its unique catalytic action and crosslinking ability. In the future, pentamethyldipropylene triamine is expected to play a greater role in high-performance polyurethane adhesives.

5.3 Multifunctional

With the advancement of technology, multifunctionalization has become an important trend in the development of polyurethane adhesives. Pentamethyldipropylene triamine can not only improve the adhesive properties of polyurethane adhesives, but also impart special functions such as antibacterial, conductive, and flame retardant. In the future, pentamethyldipropylene triamine is expected to be widely used in multifunctional polyurethane adhesives.

Conclusion

N,N,N’,N”,N”-pentamethyldipropylene triamine, as a new catalyst and crosslinking agent, provides strong technical support for the manufacture of high-strength polyurethane adhesives. Through its unique chemical characteristics and mechanism of action, pentamethyldipropylene triamine can significantly improve the adhesive properties, mechanical strength and durability of polyurethane adhesives. In practical applications, pentamethyldipropylene triamine has excellent performance in construction, automobile, electronics, packaging and other fields. In the future, with the development trend of green, environmentally friendly, high-performance and multifunctionalization, pentamethyldipropylene triamine is expected to play a greater role in the field of polyurethane adhesives and provide stronger technical support for industrial development.

Extended reading:https://www.bdmaee.net/fascat4350-catalyst-fascat-4350/

Extended reading:https://www.newtopchem.com/archives/40458

Extended reading:<a href="https://www.newtopchem.com/archives/40458

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/Toluene-diisocyanate-TDI-TDI-trimer.pdf

Extended reading:https://www.newtopchem.com/archives/44283

Extended reading:<a href="https://www.newtopchem.com/archives/44283

Extended reading:https://www.bdmaee.net/nn-bis3-dimethylaminopropyl-nn-dimethylpropane-13-diamine/

Extended reading:https://www.morpholine.org/category/morpholine/page/8/

Extended reading:https://www.bdmaee.net/di-n-butyl-tin-diisooctoate/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/NEWTOP7.jpg

Extended reading:https://www.newtopchem.com/archives/1049

Extended reading:https://www.bdmaee.net/methyl-tin-maleate-powder-c6h8o4sn-methyl-tin-maleate/

N,N,N’,N”,N”-Penmethyldipropylene triamine: a multifunctional catalyst suitable for a variety of polyurethane formulations

3月 12th, 2025 News

N,N,N’,N”,N”-Penmethyldipropylene triamine: a multifunctional catalyst suitable for a variety of polyurethane formulations

Catalog

  1. Introduction
  2. Product Overview
  3. Chemical structure and properties
  4. Product Parameters
  5. Application Fields
  6. How to use and precautions
  7. Safety and Environmental Protection
  8. Conclusion

1. Introduction

Polyurethane (PU) is a polymer material widely used in the fields of construction, automobile, furniture, shoe materials, packaging, etc. Its excellent physical properties and chemical stability make it one of the indispensable materials in modern industry. However, the choice of catalyst is crucial in the production process of polyurethane, which not only affects the reaction rate, but also directly affects the performance of the final product. N,N,N’,N”,N”-pentamethyldipropylene triamine (hereinafter referred to as “pentamethyldipropylene triamine”) is a multifunctional catalyst. Due to its high efficiency, stability, environmental protection and other characteristics, it has gradually become one of the preferred catalysts in polyurethane production.

This article will introduce in detail the chemical structure, product parameters, application fields, usage methods, safety and environmental protection of pentamethyldipropylene triamine, aiming to provide readers with a comprehensive and in-depth understanding.

2. Product Overview

Penmethyldipropylene triamine is an organic amine compound with multiple methyl substituents and contains three nitrogen atoms in its molecular structure. This structure gives it excellent catalytic properties, especially in polyurethane reaction, which can effectively promote the reaction between isocyanate and polyol, shorten the reaction time and improve production efficiency.

2.1 Product Name

  • Chinese name: N,N,N’,N”,N”-pentamethyldipropylene triamine
  • English name: N,N,N’,N”,N”-Pentamethyldipropylenenetriamine

2.2 Molecular formula and molecular weight

  • Molecular formula: C11H25N3
  • Molecular weight: 199.34 g/mol

2.3 CAS number

  • CAS number: 3855-32-1

3. Chemical structure and properties

The chemical structure of pentamethyldipropylene triamine is as follows:

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

Structurally, pentamethyldipropylene triamine contains three nitrogen atoms, and each nitrogen atom is connected with a methyl group. This structure makes it highly alkaline and good solubility, and can be miscible with a variety of organic solvents.

3.1 Physical Properties

  • Appearance: Colorless to light yellow liquid
  • Density: 0.89 g/cm³ (20°C)
  • Boiling point: 220-230°C
  • Flash point: 98°C
  • Solution: easy to soluble in organic solvents such as water, alcohols, ethers

3.2 Chemical Properties

  • Basicity: Pentamethyldipropylene triamine has strong alkalinity and can react with acid to form salts.
  • Catalytic properties: In polyurethane reaction, pentamethyldipropylene triamine can effectively promote the reaction between isocyanate and polyol, shorten the gel time, and improve the reaction efficiency.

4. Product parameters

To understand the properties of pentamethyldipropylene triamine more intuitively, the following table lists its main product parameters:

parameter name Value/Description
Appearance Colorless to light yellow liquid
Density (20°C) 0.89 g/cm³
Boiling point 220-230°C
Flashpoint 98°C
Solution Easy soluble in organic solvents such as water, alcohols, ethers
Molecular Weight 199.34 g/mol
CAS number 3855-32-1
Storage Conditions Cool, dry and ventilated places to avoid direct sunlight
Shelf life 12 months

5. Application areas

Penmethyldipropylene triamine is a multifunctional catalyst and is widely used in a variety of polyurethane formulations. byHere are its main application areas:

5.1 Rigid polyurethane foam

Rough polyurethane foam is widely used in building insulation, refrigeration equipment, pipeline insulation and other fields. Pentamethyldipropylene triamine can effectively promote the reaction between isocyanate and polyol, shorten the foaming time, and improve the closed cell rate and mechanical strength of the foam.

5.2 Soft polyurethane foam

Soft polyurethane foam is mainly used in furniture, mattresses, car seats and other fields. Pentamethyldipropylene triamine can adjust the softness and elasticity of the foam, improve the open-cell structure of the foam, and improve comfort and durability.

5.3 Polyurethane coating

Polyurethane coatings have excellent wear resistance, weather resistance and decorative properties, and are widely used in construction, automobile, furniture and other fields. Pentamethyldipropylene triamine can promote the curing reaction of the coating, shorten the drying time, and improve the adhesion and gloss of the coating.

5.4 Polyurethane Adhesive

Polyurethane adhesives have excellent bonding strength and weather resistance, and are widely used in bonding of wood, metal, plastic and other materials. Pentamethyldipropylene triamine can promote the curing reaction of adhesives, improve bonding strength and water resistance.

5.5 Polyurethane elastomer

Polyurethane elastomers have excellent wear resistance, elasticity and oil resistance, and are widely used in seals, tires, conveyor belts and other fields. Pentamethyldipropylene triamine can promote the cross-linking reaction of elastomers, improve its mechanical properties and aging resistance.

6. Methods and precautions

6.1 How to use

Penmethyldipropylene triamine is usually used in liquid form and can be added directly to polyurethane formulations. The specific usage method is as follows:

  1. Addition amount: According to different polyurethane formulations, the amount of pentamethyldipropylene triamine is generally 0.1%-1.0% (by weight of polyol).
  2. Mixing method: Mix pentamethyldipropylene triamine with polyol to ensure uniform dispersion.
  3. Reaction conditions: Reaction is carried out at room temperature or heating conditions, and the specific temperature and time are adjusted according to the formula requirements.

6.2 Notes

  1. Storage conditions: Pentamethyldipropylene triamine should be stored in a cool, dry and ventilated place to avoid direct sunlight and high temperatures.
  2. Safe Operation: Wear protective gloves, glasses and masks during operation to avoid direct contact with the skin and eyes.
  3. Waste Disposal: Abandoned Five ABasic dipropylene triamine should be treated in accordance with local environmental protection regulations to avoid pollution of the environment.

7. Safety and Environmental Protection

7.1 Security Information

Penmethyldipropylene triamine is an organic amine compound and has certain irritation and corrosiveness. The following is its security information:

  • Skin contact: It may cause skin irritation. You should immediately rinse with a lot of clean water and seek medical treatment if necessary.
  • Eye contact: It may cause eye irritation. You should immediately rinse with a lot of clean water and seek medical treatment if necessary.
  • Inhalation: It may cause respiratory irritation and should be moved to a fresh place in the air quickly and seek medical treatment if necessary.
  • Ingestion: It may cause gastrointestinal irritation. You should rinse your mouth immediately and seek medical treatment if necessary.

7.2 Environmental Protection Information

Pentamethyldipropylene triamine should comply with circulation protection regulations during production and use to reduce environmental pollution. The following is its environmental protection information:

  • Wastewater treatment: Wastewater containing pentamethyldipropylene triamine should be discharged after neutralization to avoid contaminating water bodies.
  • Waste Gas Treatment: The waste gas generated during the production process should be discharged after absorption and treatment to avoid polluting the atmosphere.
  • Solid Waste Treatment: Disposable pentamethyldipropylene triamine should be treated in accordance with hazardous waste to avoid contamination of soil.

8. Conclusion

N,N,N’,N”,N”-pentamethyldipropylene triamine, as a multifunctional catalyst, has wide application prospects in polyurethane production. Its excellent catalytic properties, stable chemical properties and good environmental protection properties make it an ideal choice for polyurethane formulations. Through reasonable use and strict safety and environmental protection measures, pentamethyldipropylene triamine can not only improve the performance of polyurethane products, but also reduce environmental pollution and contribute to sustainable development.

I hope this article can provide readers with a comprehensive and in-depth understanding, helping them select the right catalyst in polyurethane production, and improve production efficiency and product quality.

Extended reading:https://www.newtopchem.com/archives/1074

Extended reading:https://www.bdmaee.net/size-stabilizer/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/44.jpg

Extended reading:https://www.cyclohexylamine.net/tmg-nnnn-tetramethylguanidine-cas80-70-6/

Extended reading:https://www.bdmaee.net/wp-content/uploads/2022/08/51.jpg

Extended reading:https://www.bdmaee.net/toyocat-mr-gel-balanced-catalyst-tetramethylhexamethylenediamine-tosoh/

Extended reading:https://www.morpholine.org/cas-67151-63-7/

Extended reading:https://www.bdmaee.net/103-83-3/

Extended reading:https://www.newtopchem.com/archives/995

Extended reading:<a href="https://www.newtopchem.com/archives/974

1•89101112•18
Page 10 of 18