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Nitrile rubber glue material of oil-proof sealing element and preparation method thereof

A technology of nitrile rubber and sealing parts, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of high price of hydrogenated nitrile rubber and chlorohydrin rubber, long vulcanization time, low production efficiency, etc., and achieve other comprehensive The effect of good performance, low material cost and high production efficiency

Inactive Publication Date: 2012-07-18
CGP WUHU SEALING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The usual 41 nitrile rubber formula is inferior to hydrogenated nitrile rubber and chlorohydrin rubber in terms of oil resistance, heat resistance and air tightness, but hydrogenated nitrile rubber and chlorohydrin rubber are expensive, and the vulcanization time is long during processing, and the production efficiency is low and the cost is high. , how to increase the vulcanization speed and improve production efficiency without reducing other comprehensive properties of rubber materials provides a new research direction for rubber production and researchers

Method used

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  • Nitrile rubber glue material of oil-proof sealing element and preparation method thereof
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  • Nitrile rubber glue material of oil-proof sealing element and preparation method thereof

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Embodiment 1

[0023] 1. Raw material preparation:

[0024] Nitrile rubber 3445 80, nitrile rubber 3470 80, sulfur 0.8, zinc oxide 8, zinc stearate 1.5, antioxidant RD 3, antioxidant MB 1.5, microcrystalline wax 1.6, rubber processing aid WB212 1.8, carbon black N550100 , carbon black N330 50, dioctyl ester 60, accelerator DM2.4, accelerator TMTD 1.6, accelerator TETD1.6.

[0025] 2. The preparation method of the nitrile rubber compound of the oil-resistant seal, comprising the following steps:

[0026] (1) Mastication: Start the internal mixer, put nitrile rubber 3445 and nitrile rubber 3470 into the internal mixer for plastication, after 15-25 minutes of plastication, when the temperature reaches 110-120°C, start discharging, Stop and cool for 23-25 ​​hours after discharge;

[0027] (2) Mixing: Add the above-mentioned cooled plastic rubber into the internal mixer, then add zinc oxide, zinc stearate, anti-aging agents, microcrystalline wax, rubber processing aid WB212, and mix for 3-4 Af...

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Abstract

The invention discloses a nitrile rubber glue material of an oil-proof sealing element. The nitrile rubber glue material comprises the following ingredients in parts by weight: 75 to 85 parts of nitrile rubber 3445, 75 to 85 parts of nitrile rubber 3470, 0.7 to 0.9 parts of sulfur, 7 to 9 parts of zinc oxide, 1 to 2 parts of zinc stearate, 2 to 4 parts of age inhibitors RD, 1 to 2 parts of age inhibitors MB, 1.5 to 1.7 parts of microcrystal wax, 1.7 to 1.9 parts of rubber processing auxiliaries WB212, 95 to 105 parts of carbon black N550, 48 to 52 parts of carbon black N330, 55 to 65 parts of dioctyl ester, 2.3 to 2.5 parts of accelerants DM, 1.5 to 1.7 parts of accelerants TMTD and 1.5 to 1.7 parts of accelerants TETD. The rubber glue material recipe disclosed by the invention has high vulcanization speed, and other comprehensive properties of the obtained glue material are good. The oil-proof sealing element produced from the glue material has the advantages that the oil-proof performance and the heat resistance performance are good, the air tightness is good, meanwhile, the production cost is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the field of processing rubber composite materials, in particular to a nitrile rubber compound for an oil-resistant seal and a preparation method thereof. Background technique [0002] Oil-resistant seals have special requirements for the formulation of rubber materials, and the products are required to have high oil resistance, high weather resistance, and high air tightness. The usual 41 nitrile rubber formula is inferior to hydrogenated nitrile rubber and chlorohydrin rubber in terms of oil resistance, heat resistance and air tightness, but hydrogenated nitrile rubber and chlorohydrin rubber are expensive, and the vulcanization time is long during processing, and the production efficiency is low and the cost is high. , How to increase the vulcanization speed and improve production efficiency without reducing other comprehensive properties of rubber materials provides a new research direction for rubber production and researc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08K13/02C08K3/04C08K5/10C08K3/22C08K5/098C08J3/24C09K3/10
Inventor 邵仁杰
Owner CGP WUHU SEALING
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