Rubber gasket material used for valves, and preparation method thereof
A rubber gasket and valve technology, applied in the field of rubber composite material processing, can solve problems such as low strength, unsatisfactory sealing effect, poor wear resistance, etc., achieve low cost, good sealing performance, and improve process performance.
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[0009] The present invention will be described in detail below through specific examples.
[0010] A rubber gasket material for valves, made of the following raw materials in parts by weight (kg): nitrile rubber 80, EPDM rubber 12, zinc oxide 3, stearic acid 5, sulfur 2, 3, 3'- Disulfonyl hydrazide diphenyl sulfone 4, accelerator M0.5, accelerator TMTD1, aluminum hydroxide 10, zinc stearate 1, glycerol triglyceride 6, magnesium oxide 2, anti-scorch agent CTP1.2, N220 carbon black 15, N351 carbon black 30, modified attapulgite 10;
[0011] The modified attapulgite is made of the following raw materials in parts by weight (kg): attapulgite 20, clay 13, 1,6-hexamethylene diisocyanate 4, tripropylene glycol diacrylate 2, light calcium carbonate 2 , zinc oxide 1, wollastonite powder 3, magnesium hydroxide 10, chlorinated paraffin 1, diatomaceous earth 4, tributyl citrate 2, jade powder 8, pepper seed oil 1; the preparation method is to mix attapulgite, clay , diatomaceous earth m...
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