Rigid pu catalyst is an important chemical reaction promoter

Catalysts are the accelerators of many chemical reactions. Catalyst is an important additive to synthetic resin, and polyurethane is no exception. rigid pu catalyst can shorten reaction time, improve production efficiency, selectively promote positive reaction and inhibit side reaction. In the production of many polyurethane products, catalyst is a commonly used additive, although the amount is small, the effect is great.
In polyurethane elastomers and adhesives, coatings, sealants, waterproof coatings, paving materials and other formulations, organometrical catalysts such as dibutyltin dilaurate are more commonly used. It is very effective in promoting the reaction of isocyanate group and hydroxyl group, but in the formula with moisture, the reaction of water and isocyanate also has a certain acceleration effect. Therefore, special catalysts such as organic lead can be used in the formula of plastic runway. Tertiary amines, such as triethylenediamine, which have strong gelatinous properties (mainly promoting the reaction of isocyanate groups with hydroxyl groups), can also be used in some elastic polyurethane formulations.
The selection of catalysts suitable for polyurethane and its raw materials should not only consider the catalytic activity (related to the lowest concentration used) and selectivity of the catalyst, but also consider the physical state, convenience of operation, miscibility with other raw material components, stability in the mixed raw material system, toxicity, price, whether the catalyst residue in the product has harmful effects on polymer properties. New Materials Technology Co., Ltd. is a high-tech enterprise focusing on the research and development, production and sales of organometallic catalysts. The main products are rigid pu catalysts, organometallic zinc, organometallic bismuth, organometallic zirconium, organometallic rare earth, etc. Relying on its own advantages, we provide customers with professional customized product services, technical guidance and differentiated technical solutions.