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

Date：2025-03-12 Categories：Our Projects

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

Catalog

Introduction
Overview of polyurethane materials
The chemical properties of N,N,N’,N”,N”-pentamethyldipropylene triamine
The application of N,N,N’,N”,N”-pentamethyldipropylene triamine in polyurethane
Comparison of product parameters and performance
Practical application cases
Future development trends
Conclusion

1. Introduction

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

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

2. Overview of polyurethane materials

2.1 Basic structure of polyurethane

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

2.2 Classification of polyurethane

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

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

2.3 PolyurethanePerformance characteristics

Polyurethane materials have the following advantages:

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

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

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

3.1 Chemical structure

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

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

3.2 Physical Properties

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

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

3.3 Chemical Properties

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

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

4.1 As a crosslinker

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

4.2 As a modifier

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

4.3 Application Effect

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

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

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

5. Comparison of product parameters and performance

5.1 Product parameters

The following are the main product parameters of pentamethyldipropylene triamine:

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

5.2 Performance comparison

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

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

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

6. Practical application cases

6.1 Car seat

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

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

6.2 Building insulation materials

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

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

6.3 Sole material

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

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

7. Future development trends

7.1 Green and environmentally friendly

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

7.2 High performance

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

7.3 Multifunctional

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

8. Conclusion

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

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

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

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