Room temperature vulcanized phenyl silicone rubber is a type of silicone rubber that can be cured at room temperature by adding a vulcanizing agent. The following are the general production process steps for room temperature vulcanized phenyl silicone rubber:
Raw material preparation: Prepare the raw materials for phenyl silicone rubber. This may include silane monomers, phenylsilanes, crosslinking agents, catalysts, vulcanizing agents, etc.
Synthetic prepolymer: React silane monomer with phenylsilane to form silane prepolymer. This step typically involves the use of catalysts to promote the polymerization of silane chains.
Adding crosslinking agent: Adding crosslinking agent to the prepolymer to promote the crosslinking reaction between silane chains. This helps to form a three-dimensional network structure of silicone rubber, improving its elasticity and heat resistance.
Adding vulcanizing agent: Adding vulcanizing agent is a key step for room temperature vulcanization of phenyl silicone rubber. The type and content of vulcanizing agent will affect the speed and final performance of vulcanization.
Mixing and homogenization: Mix and homogenize the synthesized mixture to ensure that the crosslinking agent and vulcanizing agent are evenly distributed in the rubber.
Forming: The mixed rubber material is molded into the desired shape through extrusion, rolling, and other methods, such as sheets, pipes, etc.
Vulcanization and curing: Store the formed silicone rubber product at room temperature for a period of time to undergo a vulcanization and curing reaction. This stage is a unique feature of room temperature vulcanized phenyl silicone rubber, as it does not require vulcanization under high temperature conditions.
Post processing: Perform possible post-processing steps, such as removing residual catalysts or sulfides, to ensure that the final product meets specific requirements.
Quality control: Conduct quality control throughout the entire production process, including inspection and testing of raw materials, intermediate products, and final products, to ensure that the performance and quality of the products meet the specified standards.