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Carboxyl butadiene-acrylonitrile rubber and sodium ethylene acrylate ionic bond polymer blend wear-resisting rubber hose rubber material and preparing method thereof

A technology of carboxylated nitrile rubber and ethylene sodium acrylate, which is applied in the field of rubber hose, can solve the problems of reducing the resistance and mechanical properties of carboxylated nitrile rubber, difficulty in meeting product needs, and large compression permanent deformation, etc., to achieve good resistance to non-polar Non-toxic mineral oil, guaranteed quality, life and performance improvement

Inactive Publication Date: 2016-01-27
LUOHE LETONE RUBBER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because carboxylated nitrile rubber has the problems of large compression set and poor processing performance, it is often blended with other materials during use and used in the form of a blend to improve its shortcomings, but the blend Addition will reduce the resistance and mechanical properties of carboxylated nitrile rubber, resulting in a decline in product performance, making it difficult to meet the needs of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a rubber compound for hose, which is characterized in that the components and parts by mass of the compound are as follows: 95 parts of carboxylated nitrile rubber, 5 parts of ethylene acrylic acid sodium salt ionomer, 3 parts of stabilizer, 8 parts of magnesium oxide, 4 parts of zinc oxide, 0.6 parts of sulfur, 2.4 parts of dicumyl peroxide, 2.5 parts of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane, 3 parts of stearic acid, 70 parts of carbon black N55070, 16 parts of tall oil, 5 parts of coumarone resin, 40201 parts of anti-aging agent.

[0021] The hose compound is prepared by the following preparation method. Carboxylated nitrile rubber and ethylene acrylic acid sodium salt ionomer are added to an internal mixer for joint mixing. The mixing temperature is 80°C for 3 minutes, and the mixing time is uniform. Then add zinc oxide, magnesium oxide, stearic acid, anti-aging agent 4020 in the internal mixer successively, mix for 5 minutes; co...

Embodiment 2

[0025] This embodiment provides a rubber compound for hose, which is characterized in that the components and parts by mass of the compound are as follows: 90 parts of carboxylated nitrile rubber, 10 parts of ethylene acrylic acid sodium salt ionomer, 3 parts of stabilizer, 8 parts of magnesium oxide, 4 parts of zinc oxide, 0.6 parts of sulfur, 2.4 parts of dicumyl peroxide, 2.5 parts of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane, 3 parts of stearic acid, 70 parts of carbon black N23470, 20 parts of aromatic oil, 5 parts of phenolic resin, 1 part of antioxidant MB.

[0026] The hose compound is prepared by the following preparation method. Carboxylated nitrile rubber and ethylene acrylic acid sodium salt ionomer are added to an internal mixer for joint mixing. The mixing temperature is 90°C for 2 minutes, and the mixing time is uniform. Then add 4 parts of zinc oxide, 8 parts of magnesium oxide, 3 parts of stearic acid, 40201 parts of anti-aging agent in the internal m...

Embodiment 3

[0030] This embodiment provides a rubber compound for hose, which is characterized in that the components and parts by mass of the compound are as follows: 85 parts of carboxylated nitrile rubber, 15 parts of ethylene acrylic acid sodium salt ionomer, 3 parts of stabilizer, 8 parts of magnesium oxide, 4 parts of zinc oxide, 0.6 parts of sulfur, 2.4 parts of dicumyl peroxide, 2.5 parts of 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane, 3 parts of stearic acid, 70 parts of carbon black N23470, 17 parts of pine tar, 5 parts of coumarone resin, 1 part of antioxidant MB.

[0031] The hose compound is prepared by the following preparation method. Carboxylated nitrile rubber and ethylene acrylic acid sodium salt ionomer are added to an internal mixer for mixing at a temperature of 100°C for 2 minutes. Uniform and stand-by; then add zinc oxide, magnesium oxide, stearic acid, anti-aging agent MB in the internal mixer successively, and knead for 5 minutes; continue to add carbon bla...

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Abstract

The invention provides a hose rubber material. The rubber material is prepared from, by mass, 70-95 parts of carboxyl butadiene-acrylonitrile rubber, 5-30 parts of sodium ethylene acrylate ionic bond polymers, 3 parts of stabilizers, 8 parts of magnesium oxide, 4 parts of zinc oxide, 0.6 part of sulfur, 2.4 parts of dicumyl peroxide, 2.5 parts of 1,1-di-tert-butyl peroxy-3,3,5-trimethyl-cyclohexane, 3 parts of stearic acid, 70 parts of fortifier, 15-20 parts of softener, 5 parts of tackifying resin and 1 part of antiager. The sodium ethylene acrylate ionic bond polymers and the carboxyl butadiene-acrylonitrile rubber are adopted for blending, and therefore the rubber material has excellent mechanical performance, wear resistance and ageing resistance.

Description

technical field [0001] The invention relates to the technical field of rubber hoses, in particular to a rubber material for wear-resistant rubber hoses and a preparation method thereof. Background technique [0002] With the development of modern industry, the requirements for hose strength and wear resistance are getting higher and higher. Compared with the EPDM rubber used in traditional wear-resistant hoses, carboxylated nitrile rubber has high hardness and high tensile strength. , High modulus of tensile stress, but also has the advantages of good wear resistance, so in recent years it has been widely used in the field of wear-resistant hose rubber. [0003] The quality of the rubber hose compound is one of the main factors affecting the performance of the product. Under certain conditions of use, the product requires the compound to have good wear resistance and oil resistance. At the same time, the performance change is small under aging conditions. rate, better wear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L13/00C08L23/08C08L45/02C08L91/00C08L61/06C08K13/02C08K3/22C08K3/06C08K5/14C08K5/09C08K3/04
Inventor 张勇赵洪亮邓涛
Owner LUOHE LETONE RUBBER
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