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Rubber material of sealing component

A technology for rubber materials and seals, which is applied in the compounding and preparation of rubber materials for seals, can solve the problems of high cost, inferiority, high price of hydrogenated nitrile rubber and chlorohydrin rubber, and achieve low cost, good oil resistance, good The effect of overall performance

Inactive Publication Date: 2014-05-28
芜湖禾田汽车工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The usual 41 nitrile rubber formula is not as oil-resistant, heat-resistant, and air-tight as hydrogenated nitrile rubber and chlorohydrin rubber, but hydrogenated nitrile rubber and chlorohydrin rubber are expensive and costly; therefore, oil-resistant seals (cylinder gaskets) Improvement of oil resistance, heat resistance, airtightness and cost saving are problems that need to be solved in the prior art

Method used

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  • Rubber material of sealing component

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Effect test

preparation example Construction

[0020] A kind of preparation method of rubber material, comprises the following steps:

[0021] The first step: Prepare A rubber material and B rubber material respectively

[0022] a) Preparation of rubber compound

[0023] (1) Mastication: Start the internal mixer, put the nitrile rubber N41 into the internal mixer for plastication, after 15-25 minutes of plastication (can be 20 minutes), when the temperature reaches 110-120°C (can be 120 ℃), start discharging, and stop to cool for 23-25 ​​hours after discharging (can be 24 hours);

[0024] (2) Mixing: Add the above-mentioned cooled plasticized rubber into the internal mixer, then add zinc oxide, stearic acid, anti-aging agents, microcrystalline wax, and coumarone resin, and mix for 5-8 minutes ( After 6 minutes), add light calcium carbonate and continue mixing for 3-4 minutes (can be 3 minutes), then add carbon black N330 and N550 in two times for mixing, first add 2 / 3 carbon black and mix Refining for 2-3 minutes (can b...

Embodiment 1

[0033] The rubber material is mixed in equal proportions by two parts of rubber compound A and B, and the parts by weight of the raw materials composed of the two parts are:

[0034] A rubber material:

[0035] Nitrile rubber N41100, sulfur 0.5, zinc oxide 9, stearic acid 2, antioxidant RD1.5, antioxidant 4010NA1.5, microcrystalline wax 4, fast extrusion carbon black N55020, high wear-resistant carbon black N33066, dibutylene Ester DBP20, light calcium carbonate 24, coumarone resin 4.5, tetraethylthiuram disulfide 1.5, tetramethylthiuram disulfide 1.6, zinc diethyldithiocarbamate 1, N-oxygen di Ethylene-2-benzothiazole sulfenamide 0.8, anti-scorch agent CTP0.5;

[0036] B rubber material:

[0037] Monopoly homopolychlorohydrin rubber 89, co-polychlorohydrin rubber 18, zinc stearate 1, anti-aging agent RD2, gelatin T-780.8, rhine wax 1.5, fast extruded carbon black N55055, light calcium carbonate 15, two Butyl ester 6, trilead tetroxide 5, sulfur 0.5, accelerator Na-221.5. ...

Embodiment 2

[0039] The rubber material is mixed in equal proportions by two parts of rubber compound A and B, and the parts by weight of the raw materials composed of the two parts are:

[0040] A rubber material:

[0041] Nitrile rubber N41105 sulfur 0.3, zinc oxide 7, stearic acid 3, anti-aging agent RD2, anti-aging agent 4010NA2, microcrystalline wax 3, fast extrusion carbon black N55019, high wear-resistant carbon black N33068, dibutyl ester DBP18, light Calcium carbonate 22, coumarone resin 4.3, tetraethylthiuram disulfide 2, tetramethylthiuram disulfide 1.6, zinc diethyldithiocarbamate 1.6, N-oxydiethylene-2 - Benzothiazole sulfenamide 0.9, anti-scorch agent CTP0.3;

[0042] B rubber material:

[0043] Monopoly homopolychlorohydrin rubber 90, co-polychlorohydrin rubber 20, zinc stearate 1.5, anti-aging agent RD1, glue Yisu T-780.7, rhine wax 2, quick extruded carbon black N55058, light calcium carbonate 18, two Butyl ester DBP8, trilead tetraoxide 4, sulfur 0.6, accelerator Na-22...

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Abstract

The invention discloses a rubber material. The rubber material is prepared by mixing a rubber compound A and a rubber compound B in equal proportion, wherein the rubber compound A comprises butadiene-acrylonitrile rubber N41, sulfur, zinc oxide, stearic acid, an antiager RD, an antiager 4010NA, microcrystalline wax, fast extruding furnace black N550, high wear-resistant carbon black N330, dibutyl phthalate (DBP), light calcium carbonate, coumarone resin, tetraethylthiuram disulfide, tetramethyl thiuram disulfide, zinc diethyl dithiocarbamate, 2-benzothiazolyl-N-morpholinosulfide and an antiscorching agent CTP; the rubber compound B comprises unitary homopolymerization epichlorohydrin rubber, copolymerization chlorohydrine rubber, zinc stearate, an antiager RD, gum easy T-78, antilux 654, fast extruding furnace black N550, light calcium carbonate, dibutyl phthalate (DBP), lead tetraoxide, sulfur and a promoter Na-22. An oil-resistant sealing component (an oil cylinder sealing gasket) made of the rubber material disclosed by the invention has good oil resistance, heat resistance, gas tightness, flame retardance, tear resistance and low cost.

Description

technical field [0001] The invention relates to the field of rubber compounding rubber material processing, in particular to a rubber compound formula for a seal and a preparation method thereof. Background technique [0002] Oil-resistant and heat-resistant seals have special requirements for the formula of rubber materials, and the products are required to have high oil resistance, high heat resistance, and high air tightness. The usual 41 nitrile rubber formula is not as oil-resistant, heat-resistant, and air-tight as hydrogenated nitrile rubber and chlorohydrin rubber, but hydrogenated nitrile rubber and chlorohydrin rubber are expensive and costly; therefore, oil-resistant seals (cylinder gaskets) Improvement of oil resistance, heat resistance, airtightness and cost saving are problems to be solved in the prior art. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a sealing rubber material and its preparatio...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L71/03C08K13/02C08K3/22C08K3/04C08K3/26C08K5/40C08K5/47C08K5/098
Inventor 潘琦俊胡柏丽杨建辉
Owner 芜湖禾田汽车工业有限公司
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