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A kind of piston rubber material for mud pump and preparation method thereof
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A mud pump and piston technology, applied in the field of piston compound for mud pump and its preparation, can solve the problems of uneven dispersion of processing aids, unfavorable occupational safety of workers, poor tearing and oil resistance, etc. performance, improve the effect of high and low temperature resistance
Active Publication Date: 2016-03-30
平湖市泓博科技有限公司
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Problems solved by technology
Through the improvement of the process, it overcomes the slow "eating" of fluorosilicone rubber in the open mill, easy sticking to the roller, high dust, high labor intensity, uneven dispersion of processing aids, low production efficiency, poor tear and oil resistance in the prior art, Detrimental to workers' occupational safety and other disadvantages
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[0020] A kind of preparation of piston rubber compound for mud pump,
[0021] Weigh 28kg of fluorosilicone rubber, 22kg of EPDM rubber 9650 (Germany Lanxess), 24kg of chlorosulfonated polyethylene rubber, 26kg of hydrogenated nitrile rubber, 11kg of modified tree ash, 3kg of ferrocene, and diisopropyl peroxide Benzene DCP0.4kg, carbon black N22025kg, fumed silica 14kg, hexamethyldisilazane 0.3kg, light calcium carbonate 6kg, zinc oxide 2kg, wollastonite powder 8kg, magnesium oxide 3kg, modified iron tailings 13kg, vulcanization accelerator M0.6kg, antioxidant RD1.5kg, antioxidant TPPD1.4kg, 2-mercaptobenzimidazole 1.6kg, vinyltriethoxysilane 2.5kg, dimethyl silicone oil 1.8kg,
[0022] The preparation method comprises the following steps:
[0023] (1) Preparation method of modified tree ash:
[0024] Add triphenyl phosphate with 1-2% weight of tree ash to the tree ash and mix, soak with 15-20% hydrochloric acid for 1-2 hours, wash with water until neutral, after drying, add ...
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Abstract
The invention discloses a piston rubber material for mud pumps. The piston rubber material is made from the following raw materials in parts by weight: 20-30 parts of fluorosilicone rubber, 50-60 parts of hydrogenated nitrile rubber, 15-25 parts of chlorosulfonated polyethylene rubber TS-320 (Tosoh), 2-3 parts of gamma-methacryloxypropyl trimethoxy silane, 1-2 parts of diphenyl silanediol, 14-16 parts of modified tree ashes, 2-3 parts of ferrocene, 0.2-0.6 part of dicumyl peroxide (DCP), 20-30 parts of high abrasion furnace (HAF) black N330, 20-25 parts of precipitated silica, 5-7 parts of light calcium carbonate, 2-4 parts of zinc oxide, 1-3 parts of calcium stearate, 1-3 parts of aluminum oxide, 5-8 parts of dolomite, 13-15 parts of modified iron ore tailing powder, 0.1-0.3 part of accelerant MBTS, 1-2 parts of sulfur, 1-2 parts of anti-aging agent RD, 1-2 parts of anti-aging agent MB, 1-2 parts of 2-mercaptobenzimidazole, 1-3 parts of methyl trimethoxysilane and 2-3 parts of paraffin wax. The rubber material disclosed by the invention has excellent resistance to high / low temperature, oil, solvents and chemicals; and meanwhile, the mechanical property is good, and the cost is low.
Description
technical field [0001] The invention relates to the field of synthetic rubber, in particular to a rubber compound for a mud pump piston and a preparation method thereof. Background technique [0002] Fluorosilicone rubber has excellent high and low temperature resistance, oil resistance, solvent resistance and chemical resistance. A new type of low temperature sealing material and fuel oil hose. [0003] In the prior art, a basic fluorosilicone raw rubber is used to prepare fluorosilicone compounded rubber through mixing. Due to the different molecular weight distribution and average molecular weight of different fluorosilicone raw rubber, the properties of fluorosilicone rubber compounded by mixing a single raw rubber are different. The high molecular weight of raw rubber has good tensile strength and tear strength. Good oil resistance, but poor processability and difficult mixing. The low molecular weight of raw rubber makes it difficult to have good tensile strength an...
Claims
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