The Main Properties Of Rigid Pu Catalyst Are Introduced

Rigid pu catalyst for relatively simple polyurethane coatings, in the process of industrial production and application, its shape, gloss, water resistance and hardness are still some limitations, so it can be developed by modifying polyurethane coatings, improve its performance level. Under the current technical level, polyurethane materials can be modified in two types: one is through the method of chemical intervention, so that polyurethane coatings can have two or more characteristics; The second is through the way of physical intervention, the characteristics of the complementary two or more than two kinds of resin materials are mixed, so that the polyurethane coating can have a variety of performance. Among them, for organosilicon materials, the material has a series of characteristics and advantages such as non-corrosion, non-toxicity, fire resistance, ozone resistance, climate aging resistance, electrical insulation and so on. It has a very good application value in the modification processing of polyurethane coatings.
rigid pu catalyst The basic research and development of polyurethane powder coating, successfully developed closed isocyanate crosslinking system, commonly used is caprolactam closed IPDI curing system, its curing temperature above 170 ℃, this high temperature curing is conducive to the high level of the film, is no volatile byproduct release variety. It has also been pointed out in previous reports that attempts to combine silicone materials with polyurethane coatings and modify them with appropriate methods can obviously overcome the performance defects of polyurethane materials, which has a very precise value for expanding the application field of polyurethane materials. At the same time, the chemical structure of polysiloxane is relatively special, showing excellent stability, biocompatibility, electrical insulation and high and low temperature resistance. Since the 1940s, it has been widely used in industrial production practice. In the research and development process of modified polyurethane materials, we can try to use polysiloxane as soft segment to synthesize polysiloxane-polyurethane block copolymer, so as to highlight the advantages of polyurethane and polysiloxane. It shows that the modified polyurethane coating has outstanding advantages in surface enrichment, dielectric property and biocompatibility, and has very large application space and development potential.