The main reason for using vulcanizing agents in the production process of silicone rubber products is to improve their physical and chemical properties. The role of vulcanizing agents in silicone rubber products is to transform the linear molecular structure into a network structure through chemical reactions, thereby significantly improving their physical and chemical properties. To understand this, first understand the role of vulcanizing agents.
The main function of vulcanizing agent
1. Improve physical and mechanical properties: Vulcanized silicone rubber products have better hardness, tensile strength, elongation at break, and dimensional stability, which make them more durable and reliable during use.
2. Enhance heat and solvent resistance: The vulcanization process crosslinks rubber molecular chains, forming a three-dimensional network structure, significantly improving their heat and solvent resistance, making silicone rubber products perform well in high temperature and solvent environments.
3. Improve processing performance: Vulcanized silicone rubber products are easier to form during processing, and the formed products have stable dimensions and are not easily deformed.
Types of vulcanization processes
There are various types of vulcanization processes, including flat plate molding, extrusion vulcanization, injection flat plate molding, etc. These processes typically require high temperature and high pressure conditions to ensure that the vulcanizing agent fully reacts with rubber molecules to form a stable network structure.
In summary, vulcanizing agents play a crucial role in the production process of silicone rubber products, ensuring the quality and reliability of the final product by improving physical and mechanical properties, enhancing heat and solvent resistance, and optimizing processing performance.
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