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Liquid rubber modified epoxidized natural rubber cable material

A natural rubber and liquid rubber technology, applied in rubber insulators, organic insulators, etc., can solve the problems of limiting the application of epoxidized natural rubber, short service life, short storage time, etc., and achieve good oil resistance, long service life, and activation The effect of excellent performance

Inactive Publication Date: 2015-05-13
无为县茂林电缆材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, epoxidized natural rubber products are prone to rubber aging due to the influence of environmental factors during processing or use. Therefore, the existing epoxidized natural rubber cable products generally have short storage time, short service life, and easy aging. And other problems, to a great extent limit the application of epoxidized natural rubber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The liquid rubber modified epoxidized natural rubber cable material of the present invention, its raw material comprises the following components by weight: 80 parts of epoxidized natural rubber, 20 parts of carboxyl-terminated liquid nitrile rubber, 5 parts of modified starch, super 8 parts of fine acrylate rubber powder, 3 parts of polystyrene thermoplastic elastomer, 10 parts of white carbon black, 35 parts of modified diatomite, 15 parts of four-needle zinc oxide whiskers, 2.5 parts of zinc oxide, zinc sorbate 0.8 parts, 4 parts of stearic acid, 1 part of sulfur, 2.9 parts of dicumyl peroxide, 1 part of diallyl phthalate, 3.5 parts of diethylene glycol dibenzoate, stearic acid 2 parts of calcium, 5 parts of accelerator, 2 parts of anti-aging agent, 7 parts of coupling agent.

Embodiment 2

[0020]The liquid rubber modified epoxidized natural rubber cable material of the present invention, its raw material comprises the following components by weight: 95 parts of epoxidized natural rubber, 5 parts of carboxyl-terminated liquid nitrile rubber, 15 parts of modified starch, super 2 parts of fine acrylate rubber powder, 8 parts of polystyrene thermoplastic elastomer, 25 parts of white carbon black, 8 parts of modified diatomaceous earth, 27 parts of tetrapod zinc oxide whiskers, 1 part of zinc oxide, zinc sorbate 1.3 parts, 2 parts of stearic acid, 2.6 parts of sulfur, 2 parts of dicumyl peroxide, 3.5 parts of diallyl phthalate, 2 parts of diethylene glycol dibenzoate, stearic acid 5 parts of calcium, 2 parts of accelerator, 5 parts of anti-aging agent, 3 parts of coupling agent;

[0021] Wherein, the modifying agent of the modified starch is stearic acid; the modifying agent of the modified diatomaceous earth is stearic acid; the average particle diameter of the ultr...

Embodiment 3

[0023] The liquid rubber modified epoxidized natural rubber cable material of the present invention, its raw material comprises the following components by weight: 88 parts of epoxidized natural rubber, 12 parts of carboxyl-terminated liquid nitrile rubber, 10 parts of modified starch, super 6 parts of fine acrylate rubber powder, 6 parts of polystyrene thermoplastic elastomer, 22 parts of white carbon black, 20 parts of modified diatomaceous earth, 23 parts of tetrapod zinc oxide whiskers, 1.9 parts of zinc oxide, zinc sorbate 1.2 parts, 3.2 parts of stearic acid, 2.2 parts of sulfur, 2.3 parts of dicumyl peroxide, 2.9 parts of diallyl phthalate, 2.8 parts of diethylene glycol dibenzoate, stearic acid 4.1 parts of calcium, 3.8 parts of accelerator, 4.1 parts of anti-aging agent, 5.6 parts of coupling agent;

[0024] Wherein, the modifying agent of the modified starch is in the coupling agent; the modifying agent of the modified diatomite is a quaternary ammonium salt; the ave...

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Abstract

The invention discloses a liquid rubber modified epoxidized natural rubber cable material. The liquid rubber modified epoxidized natural rubber cable material comprises raw materials in parts by weight as follows: 80-95 parts of epoxidized natural rubber, 5-20 parts of carboxyl-terminated liquid nitrile rubber, 5-15 parts of modified starch, 2-8 parts of ultrafine acrylate rubber powder, 3-8 parts of polystyrene thermoplastic elastomer, 10-25 parts of silica, 8-35 parts of modified diatomite, 15-27 parts of tetrapod-shaped zinc oxide whiskers, 1-2.5 parts of zinc oxide, 0.8-1.3 parts of sorbic acid, 2-4 parts of stearic acid, 1-2.6 parts of sulfur, 2-2.9 parts of dicumul peroxide, 1-3.5 parts of diallyl phthalate, 2-3.5 parts of diethylene glycol dibenzoate, 2-5 parts of calcium stearate, 2-5 parts of an accelerant, 2-5 parts of an anti-aging agent and 3-7 parts of a coupling agent. The liquid rubber modified epoxidized natural rubber cable material has high strength, good anti-aging performance and long service life.

Description

technical field [0001] The invention relates to the technical field of cable materials, in particular to a liquid rubber modified epoxidized natural rubber cable material. Background technique [0002] Epoxidized natural rubber is obtained by epoxidizing natural rubber, and is usually prepared by adding formic acid or acetic acid and hydrogen peroxide to natural latex under acidic conditions. Since epoxidized natural rubber introduces epoxy groups into natural rubber molecules, it leads to the increase of the polarity of the rubber molecules and the increase of the force between the rubber molecules, which makes it have some special properties, such as excellent airtight resistance properties, oil resistance, good wet skid resistance with low rolling resistance and good adhesion. Therefore, epoxidized natural rubber is widely used, and has been widely used in fields such as cables and tires. However, epoxidized natural rubber products are prone to rubber aging due to the i...

Claims

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Application Information

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IPC IPC(8): C08L15/00C08L13/00C08L3/06C08L33/04C08K13/06C08K9/04C08K7/08C08K3/22C08K3/36C08K3/34C08K5/098C08K3/06H01B3/28
Inventor 叶显林
Owner 无为县茂林电缆材料有限公司
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