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Plugging leather cup rubber for oil/gas transmission pipelines and preparation method thereof
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A technology for conveying pipelines and cups, which is applied in the field of sealing cup rubber for oil and gas transmission pipelines and its preparation, can solve the problems of reduced sealing performance, poor electrical performance, poor low temperature resistance, etc. The effect of good process performance
Inactive Publication Date: 2015-05-13
WUHU HENGKUN AUTO PARTS
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[0005] In the prior art, the main material of the production of rubber cups is mostly raw rubber nitrile rubber, which has excellent oil resistance and high wear resistance , good heat resistance, strong adhesion, but its poor low temperature resistance, poor ozone resistance, poor electrical properties, low elasticity, long-term use in low temperature environment, its sealing performance will be greatly reduced, it is necessary to repair the existing skin Improvement of bowl rubber formula
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[0024] A kind of oil and gas transmission pipeline sealing cup rubber preparation,
[0025] First, weigh the following raw materials (kg) according to the formula requirements: nitrile rubber 35, isoprene rubber 25, EPDM rubber 5962 (Germany Lanxess) 24, fluorosilicone rubber 12, natural rubber 4, quick press carbon black N550 25. Modified white carbon black 12, aramid staple fiber 3, modified tree ash 9, talc powder 5, diatomaceous earth 5, modified iron tailings slag powder 10, N, N'-m-phenylene bismaleyl Imine 0.7, accelerator TETD 0.6, zinc stearate 2, magnesium oxide 4, anti-scorch agent CTP0.3, microcrystalline wax 1, antioxidant DLTP1.5, antioxidant ODA 1.5, N-2-(aminoethyl base)-3-aminopropyltrimethoxysilane 2, epoxidized triglyceride 18.
[0026] The preparation method comprises the following steps:
[0027] (1) Preparation method of modified tree ash:
[0028] Add 1-2% sericin powder of tree ashes weight to tree ashes and mix, soak with 15-20% hydrochloric acid...
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Abstract
The invention discloses plugging leather cup rubber for oil / gas transmission pipelines. The plugging leather cup rubber is prepared from the following raw materials in parts by weight: 30-40 parts of nitrile rubber, 20-30 parts of isoprene rubber, 20-40 parts of ethylene propylene terpolymer 5962 (LANXESS Deutschland), 10-15 parts of fluorosilicone rubber, 3-5 parts of natural rubber, 20-30 parts of fast extruding furnace black N550, 10-15 parts of modified white carbon black, 3-4 parts of aramid short fiber, 8-10 parts of modified wood ash, 4-6 parts of talcum powder, 4-6 parts of diatomite, 9-11 parts of modified iron tailing slag powder, 0.5-1 part of N,N'-m-phenylene bismaleimide, 0.5-1 part of accelerant TETD, 1-2 parts of zinc stearate, 2-4 parts of magnesia, 0.2-0.4 part of antiscorching agent CTP, 1-2 parts of microcrystalline wax, 1-2 parts of antioxidant DLTP, 1-2 parts of anti-aging agent ODA, 2-3 parts of N-2-(aminoethyl)-3-aminopropyl trimethoxysilane and 16-18 parts of epoxidized triglyceride. The rubber disclosed by the invention has excellent ozone resistance, excellent low temperature resistance and heat resistance and is large in operating temperature range and environment-friendly in process, so that the rubber material can be used for preparing various packing leather cups.
Description
technical field [0001] The invention relates to the field of synthetic rubber, in particular to a sealing cup rubber for oil and gas transmission pipelines and a preparation method thereof. Background technique [0002] Rubber cups mainly refer to rubber seals used in hydraulic brake systems, clutch control systems, and booster pump systems of cars, light vehicles, vans, and some trucks to transmit pressure and seal. Rubber cups are also used in household appliances, such as the rubber cups used on the cylinder body of a double-tub washing machine to seal the cylinder body. Rubber cups are one of the rubber products with wide application and important functions in rubber products. [0003] Main features of rubber cups: [0004] 1) The cups in the master cylinder and wheel cylinder must have certain elasticity, compression deformation and wear resistance, so as to ensure that the cups have a certain return ability and sealing ability to transmit hydraulic pressure during u...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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