Advantages and disadvantages and raw materials of silicone rubber sealing ring

Advantages and disadvantages of silicone rubber sealing rings and raw materials Silicone rubber sealing rings are mainly used in daily life such as crisper boxes, rice cookers, vertical water dispensers, lunch boxes, insulation boxes, insulation boxes, cups, electric ovens, magnetized cups, coffee machines, etc. Waterproof sealing and preservation of utensils. Advantages and disadvantages Advantages Temperature resistance: silica gel has much better temperature resistance than ordinary plastics, and can be°is basically always applied without characteristic shift, available at 200°Under continuous application for 10,000 hours, at 350°It can also be applied for a period of time. It is widely used in places where high temperature resistance is specified, kettle sealing ring, pressure cooker ring high temperature rocker. Cold resistance: General plastic is later than—20°—30°, that is, the silica gel is—60°—70°It still has good elasticity, and some special components of silica gel can also bear extremely low temperature, such as: ultra-low temperature sealing ring. The defect of silicone rubber seals sealing ring is not recommended to be used in most thick organic solvents, refined oil, thick acid and diluted sodium hydroxide. More and more popular. To understand the professional knowledge of silicone rubber products, it is necessary to gradually start from the raw materials of silicone rubber. 1. Silicone rubber raw materials can be divided into general silicone rubber and climate silicone rubber according to the characteristics. General silicone rubber alias deposited silicone rubber Color tone: transparent color, milk white, light yellow, dark gray, etc. Hardness: 30°, 40°, 50°, 60°, 70°etc, common at 40°-70°between. Relative Density: 1.1-1.12g/c㎡ Elongation: 400% Main Uses: Mostly used are low-grade silicone products such as mobile phone keyboards, miscellaneous parts, and conductive tapes. Climate glue alias pure silicone rubber seals Color tone: fully transparent. Hardness: 30°, 40°, 50°, 60°, 70°, 80°etc, common at 40°-60°middle. Features: Because this raw material has good clarity and strong tensile strength. Higher cost Main use: silicone hoses, protective shells and other high-end products that require high elasticity. 2. Silicone rubber raw materials can be divided into solid silicone rubber seals and liquid silicone according to their physical properties. Solid silicone rubber is mainly used in molded products. For example: silicone sleeves, silicone tableware, silicone buttons, etc. Liquid silicone is mainly used in extruded products, such as silicone pacifiers, silicone hoses, etc.
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