Modified natural rubber composite material for cable insulation layer

A natural rubber and cable insulation technology, applied in the field of composite cable sheath, can solve the problems of rubber sticking and cracking, restricting the application of cable sheath materials, etc. Effect

Inactive Publication Date: 2015-12-02
ZIBO KUAKE MEDICINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Natural rubber is a linear natural polymer compound. The chemical composition is mainly cis-1,4-polyisoprene, which contains a large number of unsaturated double bonds. It is easy to perform autocatalytic reactions with oxygen in the air. Excessive cross-linking will lead to viscous and cracke

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0010] Example 1

[0011] A kind of modified natural rubber composite material for cable insulation layer, its raw material comprises by weight: 30 parts of natural rubber, 60 parts of methyl methacrylate natural rubber, 50 parts of EPDM rubber, 55 parts of nano silicon dioxide, 16 parts of diatomite, 12 parts of nylon PA-666, 12 parts of calcined clay, 37 parts of white carbon black, 15 parts of carbon black, 45 parts of attapulgite, 2 parts of zinc oxide, 2.5 parts of sulfur, N-cyclohexyl-2- 2 parts of benzothiazole sulfenamide, 2 parts of bis(3-triethoxysilylpropyl) tetrasulfide, 2.5 parts of magnesium stearate, 5 parts of maleic anhydride, 5 parts of carboxylated liquid nitrile rubber;

[0012] During the preparation process, the natural rubber is placed in a vacuum oven for 28 hours in parts by weight, and the temperature of the vacuum oven is 60°C, and then it is sent into a torque rheometer, and EPDM rubber and methyl methacrylate natural rubber are added , the tempera...

Example Embodiment

[0013] Example 2

[0014] A kind of modified natural rubber composite material for cable insulating layer, its raw material comprises by weight: 40 parts of natural rubber, 40 parts of methyl methacrylate natural rubber, 60 parts of EPDM rubber, 50 parts of nano silicon dioxide, 20 parts of diatomite, 7 parts of nylon PA-667, 16 parts of calcined clay, 33 parts of white carbon black, 25 parts of carbon black, 30 parts of attapulgite, 3 parts of zinc oxide, 1.8 parts of sulfur, N-cyclohexyl-2- 4 parts of benzothiazole sulfenamide, 1 part of bis(3-triethoxysilylpropyl) tetrasulfide, 3 parts of magnesium stearate, 10 parts of maleic anhydride, 2 parts of carboxyl liquid nitrile rubber;

[0015] During the preparation process, the natural rubber is placed in a vacuum oven for 26 hours in parts by weight, and the temperature of the vacuum oven is 65°C, and then it is sent into a torque rheometer, and EPDM rubber and methyl methacrylate natural rubber are added , the temperature of...

Example Embodiment

[0016] Example 3

[0017] A kind of modified natural rubber composite material for cable insulation layer, its raw material comprises by weight: 36 parts of natural rubber, 52 parts of methyl methacrylate natural rubber, 55 parts of EPDM rubber, 52 parts of nano silicon dioxide, 19.5 parts of diatomite, 10.5 parts of nylon PA-66, 14.2 parts of calcined clay, 35.4 parts of white carbon black, 22.5 parts of carbon black, 42 ​​parts of attapulgite, 2.7 parts of zinc oxide, 2.1 parts of sulfur, N-cyclohexyl-2- 2.6 parts of benzothiazole sulfenamide, 1.6 parts of bis(3-triethoxysilylpropyl) tetrasulfide, 2.6 parts of magnesium stearate, 7.5 parts of maleic anhydride, 3.2 parts of carboxyl liquid nitrile rubber;

[0018]During the preparation process, the natural rubber is placed in a vacuum oven for 27 hours in parts by weight, and the temperature of the vacuum oven is 62°C, then it is sent into a torque rheometer, and EPDM rubber, methyl methacrylate natural rubber are added , th...

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PUM

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Abstract

The invention discloses a modified natural rubber composite material for a cable insulation layer. The material is prepared from the following raw materials in parts by weight: 30 to 40 parts of natural rubber, 40 to 60 parts of methyl methacrylate natural rubber, 50 to 60 parts of ethylene propylene diene monomer, 50 to 55 parts of nanosilicon dioxide, 16 to 20 parts of diatomite, 7 to 12 parts of nylon PA-66, 12 to 16 parts of calcined clay, 33 to 37 parts of white carbon black, 15 to 25 parts of carbon black, 30 to 45 parts of attapulgite, 2 to 3 parts of zinc oxide, 1.8 to 2.5 parts of sulphur, 2 to 4 parts of N-cyclohexyl-2-benzothiazole sulfenamide, 1 to 2 parts of bis(3-triethoxysilicyl propyl)-tetrasulfide, 2.5 to 3 parts of magnesium stearate, 5 to 10 parts of maleic anhydride and 2 to 5 parts of liquid carboxylated nitrile rubber. According to the modified natural rubber composite material for the cable insulation layer, provided by the invention, the cable insulation layer adopts the modified natural rubber composite material, the oxidation and heat resistant properties are good, the ageing-resistant performance is excellent, the mechanical property is good and the service life is long.

Description

technical field [0001] The invention relates to the technical field of composite cable sheaths, in particular to a modified natural rubber composite material for cable insulation layers. Background technique [0002] Natural rubber is a linear natural polymer compound. The chemical composition is mainly cis-1,4-polyisoprene, which contains a large number of unsaturated double bonds. It is easy to perform autocatalytic reactions with oxygen in the air. Excessive cross-linking will lead to viscous and cracked rubber, which greatly limits the application in cable sheath materials. How to prepare a cable sheath with good thermal oxygen resistance, good mechanical properties, excellent aging resistance and long service life? Cover material becomes the technical problem that needs to solve at present. Contents of the invention [0003] The invention provides a modified natural rubber composite material for the cable insulation layer, which has good thermal oxygen resistance, ex...

Claims

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Application Information

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IPC IPC(8): C08L33/12C08L23/16C08L7/00C08L77/06C08L13/00C08K13/02C08K3/36C08K3/34C08K3/04C08K3/22C08K5/47C08K5/098
Inventor 高忠青
Owner ZIBO KUAKE MEDICINE TECH
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