Special catalyst for hydrosilylation

Abstract

The invention relates to a special catalyst for hydrosilylation, which comprises the following components in parts by weight: 1.5-2.5 parts of chloroplatinic acid and 0.8-1.2 parts of divinyl tetramethyl disiloxane. The invention relates to a catalyst which is used in the hydrosilylation of producing Gamma-chloropropyl trichlorosilane. The catalyst is a bran-novel chlorine platinum acid ligand, i.e. the divinyl tetramethyl disiloxane (tetramethyl divinyl disiloxane) which can catalyze the addition reaction at the room temperature, therefore, the energy used in the heating process is saved, the energy consumption is reduced and the equipment requirement is also reduced.

Description

technical field [0001] The invention belongs to the field of catalysts, in particular to a special catalyst for hydrosilylation reaction. Background technique [0002] γ-Chloropropyltrichlorosilane is the most basic monomer in silane coupling agents, and it can be used as the main raw material for deep processing to produce dozens of high-grade silane coupling agents and other products, such as γ-chloropropyl triethoxy Silane, γ-chloropropyltrimethoxysilane, γ-aminopropyltriethoxysilane, dental composite resin, silicone antibacterial finishing agent, optical glass antifogging agent, etc. Silane coupling agent is mainly used in glass fiber reinforced materials and rubber products, which can strengthen the physical functions of composite materials, such as strength, toughness, electrical properties, water resistance, corrosion resistance, etc.; in addition, it is also used as epoxy, nitrile Adhesives such as rubber and tackifiers in sealants such as polyurethane and neoprene,...

AI Technical Summary

Problems solved by technology

[0005] The relatively mature catalyst ligand used in the past is chloroplatinic acid-isopropanol. When the addition reaction of trichlorosilane and chloropropionic acid occurs, it needs to be catalyzed above 60 ° C, which requires low boiling point trichloro Hydrogen silicon must be excessive, because the temperature is too high, resulting in an increase in side reactions, so the reaction yield is between 63% and 65%, and the purity is 98%.