What is the development of the addition of liquid silicone?

Addition liquid silicone (referred to as LSR) is a kind of silicon rubber elastomer that uses a complex of excessive metals (platinum, nickel, rhodium, etc.) as a catalyst to form a bridge between Si-H and Si-CH = CH2 A new type of silica gel. What is the addition of silicone products?

In the early 1970s, foreign countries began to study liquid silicone rubber for injection molding. But because the technology is immature in all aspects, it can only be suitable for extrusion molding processes.

The 1980s was a period of slow development of liquid silica gel. There are several technical problems that have been difficult to solve: one is to ensure the contradiction of good fluidity and high strength; the other is how to ensure that there is sufficient operation time without crosslinking after mixing without materials The third is the limitation of mold design level.

The 1990s was an era of great development of liquid silica gel. First, the use of MQ-type silica gel to solve the contradiction between fluidity and strength of silicone rubber. Secondly, the technology of cross-linking inhibitors has also been continuously improved. Using the addition product of alkynol and SiH-containing polysiloxane, the platinum microcapsule technology has also made great progress. Third, the cold flow module technology of the mold design has also smoothed the way for liquid silicone.

Since the 1990s, the varieties of silica gel have begun to diversify. At present, almost all high-temperature silica gel varieties have liquid silicone rubber, and their performance is better than room temperature vulcanized silicone. This opens up room for liquid silicone applications.

Most liquid silica gels need to be compounded with other materials to maximize their performance! A wider range of applications. For example, glass, nylon, metal, PET, PC, PPSU and so on. After the surface of the material is flame or corona treated (some materials are required), Primer is sprayed, and then the liquid silicone is injected with the material to be bonded and vulcanized. As a result, the demand for liquid silicone rubber glue has expanded. Kang Libang is engaged in the development and production of liquid silicone rubber glue, which has been applied in medical materials very early.

KANGLIBANG is to creat solution for your problem with bonding silicone, welcome customer inquiry to us.