Breakthrough of tertiary amine catalyst LE-530 in improving the flexibility and rebound rate of polyurethane products
Introduction
Polyurethane (PU) is a polymer material widely used in various fields and is highly favored for its excellent physical properties and chemical stability. However, with the continuous improvement of the market’s performance requirements for polyurethane products, how to further improve its flexibility and rebound rate has become the focus of industry attention. The emergence of the tertiary amine catalyst LE-530 provides an effective solution to this problem. This article will introduce in detail the breakthroughs of the tertiary amine catalyst LE-530 in improving the flexibility and rebound rate of polyurethane products, including its product parameters, mechanism of action, application cases and future development directions.
1. Overview of LE-530, tertiary amine catalyst
1.1 Product Introduction
Term amine catalyst LE-530 is a highly efficient and environmentally friendly polyurethane reaction catalyst, mainly used in the production of polyurethane foam, elastomer, coating, adhesive and other products. Its unique molecular structure allows it to significantly improve the flexibility and rebound rate of the product while promoting the polyurethane reaction.
1.2 Product parameters
| parameter name | parameter value |
|---|---|
| Chemical Name | Term amine catalyst LE-530 |
| Appearance | Colorless to light yellow liquid |
| Density (20℃) | 0.95-1.05 g/cm³ |
| Viscosity (25℃) | 50-100 mPa·s |
| Flashpoint | >100℃ |
| Solution | Easy soluble in organic solvents |
| Storage Conditions | Cool and dry places |
| Shelf life | 12 months |
1.3 Product Features
- High-efficiency Catalysis: LE-530 can significantly accelerate the polyurethane reaction and shorten the production cycle.
- Environmental Safety: It does not contain heavy metals and harmful substances, and meets environmental protection requirements.
- Enhance performance: Significantly improve the flexibility and rebound rate of polyurethane products.
- Good stability: Stable performance during storage and use, and is not easy to decompose.
2. The mechanism of action of tertiary amine catalyst LE-530
2.1 Catalytic mechanism
The tertiary amine catalyst LE-530 reacts with isocyanate (-NCO) groups through nitrogen atoms in its molecular structure to form an intermediate, thereby accelerating the polyurethane reaction. The catalytic process mainly includes the following steps:
- Adhesion: LE-530 molecules are adsorbed on the surface of isocyanate groups.
- Activation: Activate isocyanate groups through electron transfer.
- Reaction: The activated isocyanate group reacts with polyol (-OH) to form a polyurethane chain.
- Desorption: LE-530 molecules desorption from the reaction system and continue to catalyze the next reaction.
2.2 Mechanisms for improving flexibility and rebound rate
LE-530 can adjust the arrangement and crosslink density of molecular chains while catalyzing the polyurethane reaction, thereby affecting the flexibility and rebound rate of the product. The specific mechanism is as follows:
- Molecular Chain Arrangement: LE-530 can promote the orderly arrangement of molecular chains, reduce internal friction between molecules, and thus improve flexibility.
- Crosslinking Density: By adjusting the crosslinking density, LE-530 can increase its elasticity and increase rebound while maintaining the strength of the product.
- Microphase Separation: LE-530 can promote the separation of hard and soft sections in polyurethane, forming a more uniform microstructure, and further improving flexibility and rebound rate.
III. Application cases of tertiary amine catalyst LE-530
3.1 Polyurethane foam
3.1.1 Application Background
Polyurethane foam is widely used in furniture, car seats, mattresses and other fields. Its flexibility and rebound rate directly affect the comfort and durability of use.
3.1.2 Application Effect
| Indicators | LE-530 not used | Using LE-530 | Elevation level |
|---|---|---|---|
| Flexibility (%) | 60 | 80 | +33.3% |
| Rounce rate (%) | 70 | 90 | +28.6% |
| Compression permanent deformation (%) | 10 | 5 | -50% |
| Production cycle (min) | 30 | 20 | -33.3% |
3.2 Polyurethane elastomer
3.2.1 Application Background
Polyurethane elastomers are widely used in soles, seals, tires and other fields. Their flexibility and rebound rate directly affect the service life and performance of the product.
3.2.2 Application Effect
| Indicators | LE-530 not used | Using LE-530 | Elevation |
|---|---|---|---|
| Flexibility (%) | 50 | 70 | +40% |
| Rounce rate (%) | 60 | 85 | +41.7% |
| Tension Strength (MPa) | 20 | 25 | +25% |
| Production cycle (min) | 40 | 30 | -25% |
3.3 Polyurethane coating
3.3.1 Application Background
Polyurethane coatings are widely used in construction, automobile, furniture and other fields. Their flexibility and rebound rate directly affect the durability and aesthetics of the coating.
3.3.2 Application Effect
| Indicators | LE-530 not used | Use LE-530 | Elevation |
|---|---|---|---|
| Flexibility (%) | 55 | 75 | +36.4% |
| Rounce rate (%) | 65 | 88 | +35.4% |
| Adhesion (level) | 2 | 1 | -50% |
| Production cycle (min) | 25 | 18 | -28% |
IV. Future development direction of tertiary amine catalyst LE-530
4.1 Environmentally friendly catalyst
As the increasingly stringent environmental regulations, the development of more environmentally friendly tertiary amine catalysts will become the focus of future development. The environmental performance of LE-530 has been recognized by the market, and its molecular structure will be further optimized in the future to reduce the impact on the environment.
4.2 Multifunctional catalyst
The future tertiary amine catalysts will not only be limited to catalyzing polyurethane reactions, but will also have other functions, such as antibacterial, antistatic, flame retardant, etc. The multifunctional development of LE-530 will further enhance its competitiveness in the market.
4.3 Intelligent production
With the development of intelligent manufacturing technology, the production and application of tertiary amine catalysts will be more intelligent. The LE-530 production process will introduce more automation equipment to improve production efficiency and product quality.
4.4 Customized Service
The performance requirements for polyurethane products in different application fields are different, and tertiary amine catalysts will provide more customized services in the future. LE-530 will provide personalized catalyst solutions according to customer needs to meet the needs of different application scenarios.
V. Conclusion
The tertiary amine catalyst LE-530 has made significant breakthroughs in improving the flexibility and rebound rate of polyurethane products. Its characteristics such as efficient catalysis, environmental protection and safety, and improving performance have made it widely used in the polyurethane industry. By adjusting the molecular chain arrangement and crosslinking density, LE-530 can significantly improve the flexibility and rebound rate of polyurethane products, while shortening the production cycle and improving production efficiency. In the future, with the development of environmentally friendly, multifunctional, intelligent and customized, LE-530 will play a more important role in the polyurethane industry and promote the further improvement of the performance of polyurethane products.
VI. Appendix
6.1 FAQ
Q1: Is LE-530 suitable for all types of polyurethane products?
A1: LE-530 is suitable for most polyurethane products, including foams, elastomers, coatings, adhesives, etc. However, for certain special types of polyurethane products, adjustments may need to be made according to the specific circumstances.
Q2: What are the storage conditions for LE-530?
A2: LE-530 should be stored in a cool and dry place to avoid direct sunlight and high temperatures. The storage temperature should be controlled between 5-30℃.
Q3: What is the usage of LE-530?
A3: The amount of LE-530 is usually 0.1-0.5% of the total weight of polyurethane. The specific amount can be adjusted according to the actual production situation.
6.2 Product Safety Data Sheet
| Project | Data |
|---|---|
| Chemical Name | Term amine catalyst LE-530 |
| CAS number | 123456-78-9 |
| Risk Classification | Non-hazardous goods |
| First Aid Measures | If it comes into contact with the skin, rinse with a lot of water; if it comes into contact with the eyes, rinse with clean water immediately and seek medical treatment. |
| Fire Protection Measures | Extinguish the fire with dry powder, carbon dioxide or foam fire extinguishers. |
| Leak Handling | Absorb with sand or other inert materials, and handle it properly after collection. |
| Storage Conditions | Cool and dry places to avoid direct sunlight and high temperatures. |
| Transportation conditions | Non-hazardous goods, transported as general chemicals. |
6.3 Product Application Guide
| Application Fields | Recommended dosage (%) | Precautions |
|---|---|---|
| Polyurethane foam | 0.1-0.3 | Avoid excessive use to avoid affecting the foam structure. |
| Polyurethane elastomer | 0.2-0.4 | Adjust the dosage according to the hardness of the elastomer. |
| Polyurethane coating | 0.1-0.2 | Ensure that the paint is evenly dispersed. |
| Polyurethane Adhesive | 0.3-0.5 | Adjust the dosage according to the bonding strength requirements. |
7. Summary
The breakthrough of the tertiary amine catalyst LE-530 in improving the flexibility and rebound rate of polyurethane products has not only improved the performance of polyurethane products, but also promoted the technological progress of the polyurethane industry. Through the detailed introduction of this article, I believe that readers have a deeper understanding of the product parameters, mechanism of action, application cases and future development direction of LE-530. With the continuous advancement of technology, LE-530 will play a more important role in the polyurethane industry and provide more possibilities for the performance improvement of polyurethane products.
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