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Rubber sheath material used by self-regulating electric tracing band

A technology of electric heating cable and rubber sheath, applied in the field of rubber, can solve the problems of not meeting the demand, heat transfer, hardness and wear resistance can not meet the demand, etc., to increase the density, enhance the mechanical and thermal conductivity, resist Good grinding effect

Inactive Publication Date: 2016-04-06
崇夕山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the outer rubber sheath used for self-limiting temperature heating cables in China still cannot meet the demand due to the limitation of the use environment, especially in the cold winter environment. And wear resistance can not meet the demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A rubber sheath material for a self-limiting temperature heating cable, the raw materials of which include by weight: 70 parts of EPDM rubber, 50 parts of carboxylated nitrile rubber, 25 parts of chloroprene rubber, and 3 parts of dicumyl peroxide , 2 parts of 2,5-dimethyl-2,5-bis(tert-butylperoxy)-3-hexyne, 2 parts of triallyl isocyanurate, 0.5 parts of sodium dichromate, modified 70 parts of glass fiber, 20 parts of graphite powder, 15 parts of high wear-resistant carbon black, 10 parts of silicon carbide, 16 parts of kaolin, 20 parts of copper powder, 2 parts of antioxidant AT-2152, 2 parts of sodium lignosulfonate, ortho-benzene 2 parts of diisodecyl dicarboxylate, 1 part of polyvinyl butyral, 2 parts of liquid coumarone resin, 0.8 part of tributyl citrate.

Embodiment 2

[0017] A rubber sheath material for a self-limiting temperature heating cable, the raw materials of which include by weight: 100 parts of EPDM rubber, 20 parts of carboxylated nitrile rubber, 30 parts of chloroprene rubber, and 1 part of dicumyl peroxide , 6 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)-3-hexyne, 1 part of triallyl isocyanurate, 2 parts of sodium dichromate, modified 50 parts of glass fiber, 40 parts of graphite powder, 5 parts of high wear-resistant carbon black, 20 parts of silicon carbide, 8 parts of kaolin, 35 parts of copper powder, 1 part of antioxidant AT-2151, 6 parts of sodium lignosulfonate, ortho-benzene 1 part of diisodecyl dicarboxylate, 2 parts of polyvinyl butyral, 1 part of liquid coumarone resin, 1.5 parts of tributyl citrate.

Embodiment 3

[0019] A rubber sheath material for a self-limiting temperature heating cable, its raw materials include by weight: 86 parts of EPDM rubber, 30 parts of carboxylated nitrile rubber, 28 parts of chloroprene rubber, and 2 parts of dicumyl peroxide , 4.5 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)-3-hexyne, 1.2 parts of triallyl isocyanurate, 1.6 parts of sodium dichromate, modified 60 parts of glass fiber, 34 parts of graphite powder, 8 parts of high wear-resistant carbon black, 17 parts of silicon carbide, 10 parts of kaolin, 30 parts of copper powder, 1.2 parts of antioxidant AT-215, 5 parts of sodium lignosulfonate, phthalate 1.2 parts of diisodecyl dicarboxylate, 1.6 parts of polyvinyl butyral, 1.5 parts of liquid coumarone resin, and 1.3 parts of tributyl citrate.

[0020] The modified glass fiber is prepared by the following process: under the protection of nitrogen, mix 10 parts of silane coupling agent KH550, 80 parts of deionized water, and 5 parts of glass fiber in ...

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PUM

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Abstract

The invention discloses a rubber sheath material used by a self-regulating electric tracing band. The rubber sheath material comprises the following raw materials in parts by weight: 70-100 parts of ethylene propylene diene monomer, 20-50 parts of carboxylated nitrile rubber, 25-30 parts of chloroprene rubber, 1-3 parts of dicumyl peroxide, 2-6 parts of 2,5-dimethyl-2,5-di(t-butylperoxy)-3-hexyne, 1-2 parts of triallyl isocyanurate, 0.5-2 parts of sodium dichromate, 50-70 parts of modified glass fibers, 20-40 parts of graphite powder, 5-15 parts of high abrasion furnace black, 10-20 parts of silicon carbide, 8-16 parts of kaolin, 20-35 parts of copper powder, 1-2 parts of antioxidant AT-215, 2-6 parts of sodium lignosulphonate, 1-2 parts of diisodecyl phthalate, 1-2 parts of polyvinyl butyral, 1-2 parts of liquid coumarone resin and 0.8-1.5 parts of tributyl citrate. The rubber sheath material has good heat transfer performance, high hardness and excellent abrasion resistance.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a rubber sheath material for a self-limiting temperature electric heating cable. Background technique [0002] Since the electric heating cable entered the application field in the 1970s, it has become the most common type of electric heating cable in the world today. It is widely used in heating roads, ramps, crosswalks, eaves and floors. Inside the self-regulating electric heating cable, PTC polymer material for heating is distributed between two conductive cores, and its exterior is composed of polymer inner sheath, metal shielding net and polymer outer sheath. At present, the outer rubber sheath used for self-limiting temperature heating cables in China still cannot meet the demand due to the limitation of the use environment, especially in the cold winter environment. And wear resistance can not meet the demand. Contents of the invention [0003] The invention provides a ...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L13/00C08L11/00C08L29/14C08K13/06C08K9/06C08K7/14C08K5/14C08K3/04C08K3/34C08K5/12C08K5/3492C08K3/24C08K3/08C08K5/11
CPCC08L23/16C08L2201/08C08L2205/035C08L13/00C08L11/00C08L29/14C08K13/06C08K9/06C08K7/14C08K5/14C08K3/04C08K3/34C08K3/346C08K5/12C08K5/3492C08K3/24C08K2003/085C08K5/11
Inventor 不公告发明人
Owner 崇夕山
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