Tenders invited for Supply of Chloroplatinic acid
The catalyst paste contains vinyl-terminated poly (dimethylsiloxane) and a catalyst such as chloroplatinic acid
Platinum-based homogeneous strong acids like chloroplatinic acid
(Karstedt acid) are typically used here and the cures can either be at ambient or higher temperatures.
PDMS (vinyl group content of 10 mol% and a number-average molecular weight of 500,000 g/mol) and a chloroplatinic acid solution (as a catalyst) were obtained from the Research Center of Organic Silicone of Chengdu, China.
For the cross-linking reactions, addition reactions between silicon-hydrogen and vinyl group are carried out among the SR-FVI, the PDMS, and the HSO under the catalytic effect of chloroplatinic acid.
These oligomers are double-bond-functional silicones which become polymerized by free radicals from chloroplatinic acid
2] current for 30 minutes from chloroplatinic acid
The catalyst is a solubilized platinum complex of chloroplatinic acid
or alternatively a peroxide.