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Formula of ethylene propylene diene monomer cold shrink tube

A technology of EPDM rubber and cold shrinkable tube, applied in the field of EPDM rubber, can solve the problems of surface corrosion, oil resistance, temperature resistance, poor anti-aging and corrosion resistance, surface cracks, etc., to increase oil resistance sexual effect

Inactive Publication Date: 2021-03-26
WUHU JITUO RUBBER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The prior art has the following deficiencies: when the existing cold-shrinkable tubes are used, their oil resistance, temperature resistance, aging resistance and corrosion resistance are poor, and it is easy to cause surface corrosion and surface cracks

Method used

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  • Formula of ethylene propylene diene monomer cold shrink tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1, a kind of EPDM cold-shrink tube formula provided by the present invention, comprises compound, compounding agent and filler, and described compound comprises EPDM rubber, nitrile rubber and silicone rubber, and described The compounding agent includes a leveling agent, a crosslinking agent, an interface agent, a vulcanization accelerator, a plasticizer, an anti-aging agent and an anti-cracking agent, and the filler includes carbon black, silicon dioxide, and sulfur;

[0036] The compound (by weight) is respectively: 30 parts of EPDM rubber, 30 parts of nitrile rubber, 30 parts of silicone rubber;

[0037] The compounding agent (by weight) is respectively: 3 parts of leveling agent, 3 parts of cross-linking agent, 3 parts of interface agent, 10 parts of vulcanization accelerator, 8 parts of plasticizer, 10 parts of anti-aging agent, crack prevention 10 doses;

[0038] The fillers (in parts by weight) are respectively: 10 parts of carbon black, 10 parts of ...

Embodiment 2

[0068] Embodiment 2, a kind of EPDM cold-shrink tube formula provided by the present invention, comprises compound, compounding agent and filler, and described compound comprises EPDM rubber, nitrile rubber and silicone rubber, and described The compounding agent includes a leveling agent, a crosslinking agent, an interface agent, a vulcanization accelerator, a plasticizer, an anti-aging agent and an anti-cracking agent, and the filler includes carbon black, silicon dioxide, and sulfur;

[0069] The compound (by weight) is respectively: 40 parts of EPDM rubber, 40 parts of nitrile rubber, 40 parts of silicone rubber;

[0070] The compounding agent (by weight) is respectively: 4 parts of leveling agent, 4 parts of cross-linking agent, 4 parts of interface agent, 15 parts of vulcanization accelerator, 10 parts of plasticizer, 15 parts of anti-aging agent, crack prevention 15 doses;

[0071] The fillers (in parts by weight) are respectively: 15 parts of carbon black, 15 parts of...

Embodiment 3

[0101] Embodiment 3, a kind of EPDM cold-shrink tube formula provided by the present invention, comprises compound, compounding agent and filler, and described compound comprises EPDM rubber, nitrile rubber and silicone rubber, and described The compounding agent includes a leveling agent, a crosslinking agent, an interface agent, a vulcanization accelerator, a plasticizer, an anti-aging agent and an anti-cracking agent, and the filler includes carbon black, silicon dioxide, and sulfur;

[0102] The compound (by weight) is respectively: 50 parts of EPDM rubber, 50 parts of nitrile rubber, 50 parts of silicone rubber;

[0103] The compounding agent (by weight) is respectively: 5 parts of leveling agent, 5 parts of cross-linking agent, 5 parts of interface agent, 20 parts of vulcanization accelerator, 12 parts of plasticizer, 20 parts of anti-aging agent, crack prevention 20 doses;

[0104] The filler (by weight) is respectively: 20 parts of carbon black, 20 parts of silicon di...

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Abstract

The invention discloses a formula of an ethylene propylene diene monomer cold shrink tube. According to the technical scheme, the formula of the ethylene propylene diene monomer cold shrink tube comprises a mixture, a chemical agent and a filler agent, the mixture comprises ethylene propylene diene monomer, nitrile rubber and silicone rubber, and the chemical agent comprises a homogenizing agent,a cross-linking agent, an interface agent, a vulcanization accelerator, a plasticizer, an aging inhibitor and a cracking inhibitor. The filler agent comprises carbon black, silicon dioxide and sulfur,the mixture comprises, by weight, 30-60 parts of ethylene propylene diene monomer, 30-60 parts of nitrile rubber and 30-60 parts of silicone rubber, and the mixture comprises, by weight, 3-6 parts ofa homogenizing agent, 3-6 parts of a cross-linking agent, 3-6 parts of an interface agent, 10-25 parts of a vulcanization accelerator, 8-14 parts of a plasticizer, 10-25 parts of an anti-aging agent,and 10-25 parts of a preventive cracking agent. The beneficial effects of the formula are that: oil resistance, temperature resistance, corrosion resistance, and aging resistance are improved.

Description

technical field [0001] The invention relates to the field of EPDM rubber, in particular to a formula of EPDM cold-shrink tube. Background technique [0002] EPDM is a copolymer of ethylene, propylene and a small amount of non-conjugated dienes. It is a kind of ethylene-propylene rubber, expressed in EPDM, because its main chain is composed of chemically stable saturated hydrocarbons, only in the side chain It contains unsaturated double bonds, so it has excellent aging resistance such as ozone resistance, heat resistance, and weather resistance. It can be widely used in automotive parts, waterproof materials for construction, wire and cable sheaths, heat-resistant hoses, tapes, automotive seals, etc. . [0003] Cold-shrinkable cable accessories are molded by injection vulcanization of elastomer materials in the factory, and then expanded and lined with plastic spiral supports to form various cable accessories. When installing on site, these pre-expanded parts are covered A...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L9/02C08L83/04C08K13/04C08K7/26C08K3/04C08K3/06C08K5/098
CPCC08L9/02C08L23/16C08L83/04C08L2201/08C08L2203/18C08L2205/03C08K13/04C08K7/26C08K3/04C08K3/06C08K5/098
Inventor 吕晓刚吴喜林王化勇
Owner WUHU JITUO RUBBER TECH