Silicone rubber has no rubber characteristics, no strength and no practical value before vulcanization. Only under the action of vulcanizing agent, through chemical cross-linking to form a three-dimensional network structure, it has rubber characteristics; In industrial production, the mixed silicone rubber (glue) is the most commonly used organic peroxide vulcanization system, there are 2, 5 - dimethyl - 2, 5 - two tertiary butyl peroxide hexane (commonly known as double minimum), two tertiary butyl peroxide (commonly known as tasteless vulcanizator), 2, 4 - dichloro benzoyl peroxide (commonly known as the dual m) and dicumyl peroxide (DCP), etc. It has the advantages of low cost, good stability and convenient operation. But the above curing agent itself is dangerous, flammable and explosive, and the existence of slow curing speed, curing out of the product smell, appearance yellow, high temperature secondary baking to remove the reaction by-products, is not easy to achieve food medical grade and a series of shortcomings.

In recent years, with the industrial scale production of platinum catalyst and the continuous maturation of technology; Platinum vulcanization system has been widely used in silicon rubber industry. The products vulcanized with platinum vulcanizing agent have the advantages of transparency, good yellow resistance, good demoulding, fast curing speed, no odor, and easier to pass the food medical grade. They are mainly used in medical treatment, food, sanitation, packaging, wearable devices, toys, gifts and so on. For example, Bing Dwen Dwen silicone shell, which is popular all over the web recently, is partly made of liquid silicone rubber injection, and partly made of mixed silicone rubber with platinum vulcanizing agent.

Conventional platinum sulfide agent is generally divided into A agent and B agent, A agent for platinum, play A role in providing catalytic activity; Agent B is composed of hydrogen-containing silicone oil and inhibitor components, which plays a role in cross-linking and regulating the vulcanization rate of platinum. In production, the silica gel is generally added to agent B and mixed evenly on the mixer, and then added to agent A to mix evenly, which can be very good curing molding.

Traditional AB two-component platinum sulfide agent to weigh and mix twice, will increase labor intensity, reduce production efficiency; By mixing hydrogen silicone oil, inhibitors, platinum catalysts and other additives evenly, and then mixed with raw rubber or white carbon black method, the production of a single component platinum sulfide agent, convenient for customers to use; Therefore, in recent years, the application of single component platinum sulfide agent is more and more, more and more sales, has become the direction of future development.