Automobile valve oil seal adhesive material
A technology of valve oil seal and rubber material, which is applied in the field of sealants, can solve the problem that the service life of valve oil seal cannot meet people's needs, and achieve excellent sealing performance and excellent heat resistance
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[0013] Example 1:
[0014] An automobile valve oil seal compound, made of the following parts by weight of raw materials: 25 parts of nitrile rubber, 25 parts of ethylene-propylene rubber, 15 parts of fluoro rubber, 10 parts of carbon black, 10 parts of high-strength fiber, 1 part of stearic acid , 1 part of silicon dioxide, 10 parts of paraffin oil, 0.5 parts of magnesium oxide, 0.5 parts of zinc oxide, 0.5 parts of sulfur, 0.3 parts of anti-glue agent, 0.5 parts of catalyst;
[0015] The preparation method is as follows: put the above-mentioned raw materials into a stirred reaction kettle, raise the heating temperature to 180-200 DEG C and fully stir, heat for 1 hour, pour into a mold, and cool to obtain the solid automobile oil seal compound. Nitrile rubber has excellent physical and mechanical properties, processing properties and excellent oil resistance. It is generally produced by emulsion polymerization of butadiene and acrylonitrile. Nitrile rubber is mainly produced by lo...
Example Embodiment
[0022] Example 2:
[0023] The difference from Example 1 is that an automobile valve oil seal compound is made of the following parts by weight: 40 parts of nitrile rubber, 50 parts of ethylene-propylene rubber, 30 parts of fluoro rubber, 30 parts of carbon black, high strength Fiber 20, stearic acid 4 parts, silicon dioxide 3 parts, paraffin oil 60 parts, magnesium oxide 2, zinc oxide 2 parts, sulfur 1 part, anti-glue agent 0.6 part, catalyst 1 part;
[0024] The preparation method is as follows: put the above-mentioned raw materials into a stirred reaction kettle, raise the heating temperature to 180-200 DEG C and fully stir, heat for 1.5 hours and then pour into a mold, and cool to obtain the solid automobile oil seal compound.
[0025] The high-strength fiber is polyacrylonitrile-based carbon fiber. The carbon black is N539 carbon black.
Example Embodiment
[0026] Example 3:
[0027] Different from Examples 1 and 2, an automobile valve oil seal compound is made of the following parts by weight: 30 parts of nitrile rubber, 30 parts of ethylene-propylene rubber, 20 parts of fluoro rubber, 20 parts of carbon black, High-strength fiber 15, 2 parts stearic acid, 2 parts silica, 40 parts paraffin oil, magnesium oxide 1, 1 part zinc oxide, 0.7 parts sulfur, 0.5 parts anti-glue agent, 0.8 parts catalyst;
[0028] The preparation method is as follows: put the above-mentioned raw materials into a stirred reaction kettle, raise the heating temperature to 180-200° C. and fully stir, heat for 1-1.5 h, pour into a mold, and cool to obtain the solid automobile oil seal compound.
[0029] The high-strength fiber is polyacrylonitrile-based carbon fiber. The carbon black is N550 carbon black.
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