Silicone pressure-sensitive adhesive generally refers to the pressure-sensitive adhesive with silicone polymer as the main body, or acrylic acid and silicone modified rubber pressure-sensitive adhesive modified by silicone polymer. Compared with traditional acrylate pressure-sensitive adhesive and rubber pressure-sensitive adhesive, it has excellent properties of chemical resistance, water resistance, oil resistance, solvent resistance, high temperature resistance, low temperature resistance, heat degradation resistance and oxidative degradation resistance, and can be bonded with a variety of difficult to stick materials such as polyolefin (BOPP, pet, PE, etc.) fluoroplastics, polyimide and polycarbonate without surface treatment.

Silicone pressure sensitive adhesive is divided into addition molding and condensation type catalytic systems. The addition molding is vulcanized with platinum catalyst, and the condensation type is catalyzed with organotin catalyst. Platinum catalyst is a platinum catalyst with high activity and high catalytic efficiency, which can efficiently catalyze the addition reaction of si-vi and Si-H without side reaction. At the same time, the product also has the advantages of good stability and strong toxicity resistance, which can avoid the formation of black substances during the storage or use of the product and reduce the impact of nitrogen and sulfur-containing substances. In addition, it has good selectivity and no by-products; It has little effect on the transparency of the compound, and can prepare high transparent products; Environmental protection, no toxic gas release during vulcanization.

Platinum catalyst is a general name of catalysts made of metal platinum as the main active component. Platinum metal mesh, platinum black, or platinum loaded on alumina and other supports can also contain metal rhenium and other cocatalyst components. It is mainly used in ammonia oxidation, petroleum hydrocarbon reforming, oxidation and hydrogenation of unsaturated compounds, removal of carbon monoxide and nitrogen oxides in gas, etc. It is a catalyst often used in chemical, petroleum and chemical reaction processes. It has high catalytic activity, strong selectivity, convenient preparation of catalyst and less use. The catalytic performance can be optimized by changing and improving the manufacturing method and compounding with other metals or active components of cocatalyst. It has wide application fields, can be regenerated and activated repeatedly, has long service life, and the metal palladium of waste catalyst can be recycled. Many varieties of platinum catalysts have become patented products and are used in all walks of life. Platinum catalysts with new structures and catalytic functions are still being developed, which not only makes it possible for many difficult reaction processes to be catalyzed by platinum catalysts, but also improves and improves many industrial production processes such as petroleum and chemical industry due to the use of newly developed platinum catalysts, Therefore, platinum catalyst still has great development prospects.