The use of dimethyl silicone oil in demoulding
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As a well-known chemical, dimethyl silicone oil is purchased in large quantities as thread oil in many countries with developed textile industry. But it still has great use in our country - demoulding. With the development of China's industry, the market of mold release agent is also becoming larger. Especially in the rubber industry, plastic industry, leather industry and other widely used. Polydimethylsiloxane is one of the main components of demoulding agent, which can be used as rubber or plastic products (brake plate, screw head, plug, etc.), EVA, PU shoe material demoulding, efficient and stable products.
Dimethyl silicone oil has good lubrication and can prevent stickiness, non-toxic, high temperature resistance, oxidation resistance, less volatile, no corrosion die, good out, and can clean the surface of the mould parts with good sex, plus metal, no corrosion, no miscibility of most of the rubber, plastic, therefore has been widely used for rubber products, plastic products, metal casting mold release agent. Silicone oil as a demoulding agent mainly includes: oil demoulding agent, solution demoulding agent, emulsion demoulding agent, silicone paste demoulding agent, aerosol dosage demoulding agent. There is also a silicone demoulding agent, can be fixed demoulding agent, compared with silicone oil demoulding agent, its advantages are: a coating can be used dozens of times to hundreds of times, reduce the cost of materials and labor costs; Improve equipment production capacity; Reduce the rate of waste and defective products; Improve the surface finish of products; Mold cavity clean, less harmful smoke; Prolong the service life of mold cavity; It has better demoulding effect. For example, for the forming of polyurethane sole with large adhesion and difficult demoulding, dimethyl silicone oil and MQ silicone resin can be used as the active component of the solvent demoulding agent.