The manufacturing process of silicone rubber is a full process precision engineering from laboratory basic research to industrial large-scale production. Its core begins with the synthesis of organosilicon monomers - reacting silicon powder with chlorinated hydrocarbons under high temperature and pressure and catalyst action through Grignard reagent method or direct synthesis method to generate a mixture of methylchlorosilane. This process requires strict control of reaction temperature and pressure to avoid the generation of by-products.

Subsequently, high-purity dimethyl dichlorosilane monomer is purified through hydrolysis, distillation and other steps. The monomer is then subjected to hydrolysis condensation reaction to generate linear structured polysiloxane prepolymer under acidic or alkaline conditions. At this time, the hydrolysis ratio and condensation time need to be precisely controlled to obtain a linear polysiloxane base compound with uniform molecular weight distribution; After entering the industrial production stage, high-temperature vulcanized silicone rubber needs to be mixed with white carbon black reinforcing agent, structural control agent, and peroxide vulcanizing agent in the internal mixer or open mixer. Through repeated shearing and kneading, the filler and raw rubber are evenly dispersed. The mixed rubber needs to be repeatedly re refined to eliminate internal stress and ensure the uniform distribution of vulcanizing agent.

Room temperature vulcanized silicone rubber achieves rapid curing by adding crosslinking agents and catalysts. For example, acidic rubber relies on the condensation reaction between acetate and silanol to dehydrate and cure, while additive rubber achieves no by-product curing through the addition reaction of silane and hydrogen under the action of platinum catalyst. The entire manufacturing process needs to be completed in a clean workshop to avoid impurity pollution. At the same time, key parameters such as Mooney viscosity and vulcanization characteristics of the rubber material need to be monitored in real-time by online monitoring equipment to ensure the stability of product quality.

Ultimately, silicone rubber products that meet specific performance requirements are obtained through molding processes such as compression molding, injection molding, or 3D printing. The entire process chain embodies the precision control concept from molecular design to macroscopic performance regulation, retaining the scientific nature of laboratory research while meeting the requirements of high efficiency and repeatability in industrial production.

Regarding liquid silicone rubber, please refer to our website for details: IOTA Liquid Silicone Rubber