The usage and application of polyurethane catalyst TMR-2 are as follows:
一、Basic usage：
- Addition to the reaction system
TMR-2, as a tertiary amine catalyst, can be directly added to the polyurethane reaction system, usually in solid or liquid form. Its chemical structure (2-hydroxy-N,N,N-trimethyl-1-propylamine formate) can promote the cross-linking reaction of isocyanate and polyol, shorten the curing time and improve the material performance. - Reaction condition control
Temperature: suitable for catalysis at lower temperatures to avoid excessive cross-linking caused by high temperatures;
Initiator selection: Compared with potassium catalysts, TMR-2 can more evenly control the initiation reaction rate.
二、Main application areas：
- 3D printed soles
By accelerating the generation of polyurethane foam, the hardness, elasticity and durability of the soles are improved, while optimizing the compression deformation control. - Charging pile seals
Achieve UL 50E waterproof certification to ensure the reliability of the seals in humid environments. - 5G antenna cover
Reduce the dielectric loss factor, improve high-frequency dielectric properties and mechanical strength, and enhance chemical corrosion resistance. - Rigid foam polyurethane
As a trimerization catalyst in rigid foam additives, it provides a more uniform initiation reaction and fluidity, which is better than Dabco's similar products.
三、Precautions：
- Ratio optimization: The amount of TMR-2 added needs to be adjusted according to the specific application to avoid affecting the final material performance;
- Compatibility: Applicable to a variety of polyurethane systems, including rigid foam, soft foam and elastomers.