Group 8 transition metals have always attracted much attention because of their special catalytic properties. More than a hundred years ago, the first metal-olefin complex obtained by scholars was a compound of zero-valent platinum and ethylene, the famous Zeiss salt. Later, other sutures of Group 8 transition metals and various alkenes were obtained. Such as ferrocene, etc. But from a structural point of view, the platinum atom in the sixth period has a relatively large radius and a large number of electron layers. Its inner f-layer full electron structure makes it close to the alkene double bond in both energy level and radius, making it more It is suitable for producing catalytic effects in the field of silica gel, and the same is true from the actual effect. Scholars have studied other Group 8 transition metals and proposed to use nickel, cobalt and rhodium to try, but their reaction effects, initiation temperatures and applicability are not as good as metals. Platinum, therefore platinum is widely used in silicone addition.
The platinum catalyst is a high-activity, high-catalytic-efficiency platinum catalyst that can efficiently catalyze the addition reaction of Si-Vi and Si-H without any side reactions. At the same time, this product also has the advantages of good stability and strong anti-toxicity, which can effectively avoid the generation of black substances during storage or use of the product and reduce the impact of nitrogen- and sulfur-containing substances. In addition to the above advantages, it also has the advantages of good selectivity, no by-products, little impact on the transparency of the rubber compound, the ability to prepare highly transparent products and environmental protection, and no toxic gas release during the vulcanization process.
Platinum catalyst application areas:
1. It can be used as a catalyst for liquid addition silicone rubber, silicone gel, addition compound, electronic potting glue, silicone ink, etc.
2. Catalysts for synthesis of polyether silicone oil, amino silicone oil, etc.
3. Other occasions of hydrosilylation reaction.
4. Paper release agent
5. Modified silicone
6. Flame retardant silicone products are efficient environmentally friendly flame retardants
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