What is Platinum Catalyst Material?
Platinum catalyst material primarily consists of platinum compounds such as chloroplatinic acid as the main active component. It is often combined with supports like metal mesh, platinum black, or platinum loaded on alumina. It may also contain cocatalysts such as rhenium or chlorinated organic compounds. This catalyst material is colorless, transparent, or pale yellow in liquid form, featuring high activity, excellent yellowing resistance, and strong anti-toxicity. It is commonly used for co-catalyzing and curing polyurethane and silicone coatings and is highly stable, making it suitable for liquid rubbers, compounded rubbers (solid rubbers), and vulcanizing agents.
Advantages of Platinum Catalyst Material
This catalyst offers high catalytic efficiency, suppressing side reactions that typically occur during Si-Vi and Si-H reactions and preventing the formation of black substances. Unlike other catalysts, it avoids yellowing or darkening of the products, making it possible to produce highly transparent products that often surpass similar products from Japan, the U.S., and Europe in clarity.
Production Process of Platinum Catalyst Material
It is particularly suitable for hydrosilylation reactions in the silicone industry, where it can quickly and efficiently catalyze the addition reaction between ≡Si-Vi and ≡Si-H without causing side reactions. Additionally, it demonstrates stable performance and strong resistance to poisoning, preventing discoloration (such as platinum black precipitation) during storage or use. It is also effective in resisting the interference of compounds containing nitrogen, sulfur, phosphorus, or other metals.
Applications of Platinum Catalyst Material
As a high-efficiency, multifunctional catalytic material, platinum catalyst material shows great potential in various applications. It is widely used in liquid silicone rubber production, significantly enhancing cross-linking efficiency and physical properties. It is also essential in silicone gel preparation, ensuring product stability and heat resistance. Additionally, it plays a critical role in the manufacture of high-temperature addition-type silicone rubbers and silicone inks, improving processability and final product quality. In the production of addition-type silicone adhesives and pressure-sensitive adhesives, platinum catalyst material excels, greatly increasing adhesive strength and weather resistance. Furthermore, it is essential in the production of specialty silicone oils, such as polyether silicone oil and amino silicone oil, supporting the synthesis of these products.
