Highly sealing rubber material and preparation technology thereof

Abstract

The invention discloses a highly sealing rubber material. The rubber material comprises the following raw materials in parts by weight: 75-90 parts of powdery nitrile rubber, 20-40 parts of para-tertiary butyl phenol formaldehyde resin, 20-40 parts of epoxidized natural rubber, 0.8-1.7 parts of antiager RD, 0.5-1.3 parts of antiager 4010NA, 0.4-0.8 part of stearic acid, 0.4-0.6 part of sulphur powder, 0.9-1.3 parts of microcrystalline wax, 3-4 parts of zinc oxide, 40-60 parts of fast extruding furnace black, 30-40 parts of mixed gas carbon black, 20-25 parts of triethyl citrate, 1.2-2.7 parts of phthalic acid dibutyl ester, 0.4-0.9 part of dioctyl adipate, 1.2-1.4 parts of accelerator TMTD, 1-1.3 parts of accelerator CZ, 1.1-1.3 parts of accelerator DM, 1-3 parts of nanometer barite, 1-2 parts of chalk, 1.5-2.3 parts of high styrene resin, and 2.2-2.8 parts of benzoic acid. The invention also discloses a preparation technology for the highly sealing rubber material. The highly sealing rubber material has excellent bonding and sealing performances, good elasticity and warping strength, and long service life.

Description

technical field [0001] The invention relates to the technical field of nitrile rubber, in particular to a high-sealing rubber material and a preparation process thereof. Background technique [0002] Sealing materials refer to materials that can withstand joint displacement to achieve airtightness and watertightness and are embedded in building joints. Early sealing materials are mainly fabrics, mineral fibers or felts. With the development of industrial technology, in order to meet the increasingly complex and diverse requirements of hydraulic and pneumatic seals, sealing materials have also developed rapidly, with more and more types and continuous improvement in physical and chemical properties. [0003] Existing seal materials include metallic materials, such as aluminum, lead, indium, stainless steel, etc., and non-metallic materials, such as rubber, plastic, ceramics, graphite, etc., but currently the most used non-metallic rubber materials, excellent sealing performan...

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Problems solved by technology

[0003] Existing seal materials include metallic materials, such as aluminum, lead, indium, stainless steel, etc., and non-metallic materials, such as rubber, plastic, ceramics, graphite, etc., but currently the most used non-metallic rubber materials, excellent sealing performance Inferiority depends to a large extent on the performance of the sealing material. With the rapid development of the existing industry, the existing rubber materials are increasingly unable to meet the demand. How to prepare a sealing material with excellent bonding performance, elasticity and flex resistance Well, the rubber material with excellent sealing performance has become a technical problem that needs to be solved at present

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