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Organosilicon Classroom - Application of Methyl Silicone Oil in Rubber and Plastics Industry
2025-03-31
In the rubber and plastics industry, methyl silicone oil, with its unique physicochemical properties, is mainly used in the following areas:
1. Release agent
Function: Utilizing its non-stick properties with rubber and plastics, methyl silicone oil can effectively prevent material adhesion to molds, improving demolding efficiency.
Application scenarios: Widely used in polyurethane microporous elastomers, rubber products (such as brake pads), plastic molding (such as EVA footwear), etc., especially suitable for high-temperature or complex mold structures.
Advantages: Compared with traditional release agents, its high-temperature resistance (up to over 200℃) and stability can reduce mold residue and prolong mold life.
2. Lubricant and processing aid
Internal lubrication: Added directly to plastics (such as ABS, polyester) to improve melt flow, reduce processing resistance, and reduce equipment wear.
External lubrication: Used as a surface lubricant to treat rubber and plastic products (such as seals), reducing the coefficient of friction and improving wear resistance.
3. Surface treatment and post-processing
Gloss enhancement: Coating the surface of rubber and plastic products with methyl silicone oil can form a water-repellent film, improving gloss and weather resistance, suitable for automotive parts, decorative materials, etc.
Anti-static treatment: Surface treatment reduces electrostatic adsorption of rubber and plastic products, improving the performance of industrial components (such as conveyor belts).
4. Rubber product modification
Silicone rubber production: As a basic raw material for silicone rubber (such as VMQ, PMQ), it forms an elastomer through a vulcanization process, giving it high and low temperature resistance (-50~200℃) and electrical insulation properties.
Performance optimization: Adjusting the degree of vulcanization can control the hardness, tensile strength, and other mechanical properties of the rubber, suitable for sealing rings, shock-absorbing components, etc.
5. Antifoaming agent
Application process: In rubber and plastic processing (such as foam material production), adding methyl silicone oil emulsion can quickly eliminate foam and ensure a uniform product structure.
Summary
Methyl silicone oil significantly improves processing efficiency and product performance through demolding, lubrication, surface treatment, and other multi-dimensional applications in the rubber and plastics industry. For more technical details, please refer to relevant industry reports or experimental research.
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