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Conductive rubber

A conductive rubber and conductive carbon black technology, applied in the field of rubber, can solve the problems of high filling, high cost, poor processing performance, etc., and achieve the effect of good electrical conductivity and mechanical properties

Active Publication Date: 2020-07-21
BEIJING RES & DESIGN INST OF RUBBER IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of poor processing performance, decreased mechanical properties and high cost caused by the high filling number of existing conductive rubber fillers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Table 1 Example 1 formula

[0026] material name parts by weight SBR 70 natural rubber 30 Carbon black N234 60 Conductive carbon black 2 graphite 2 Zinc oxide 5 stearic acid 3 Antiaging agent 4020 2 Antiaging agent RD 1 Environmentally friendly aromatic oil 15 sulfur 2.0 N-cyclohexyl-2-benzothiazole sulfenamide 1.85 N-Cyclohexylthiophthalimide 0.2

Embodiment 2

[0028] Table 2 Example 2 formula

[0029] material name parts by weight SBR 90 natural rubber 10 Carbon black N115 20 Conductive carbon black 10 graphite 0.5 Zinc oxide 5 stearic acid 3 Antiaging agent 4020 2 Antiaging agent RD 1 Environmentally friendly aromatic oil 15 sulfur 2.0 N-cyclohexyl-2-benzothiazole sulfenamide 1.85 N-Cyclohexylthiophthalimide 0.2

Embodiment 3

[0031] Table 3 Example 3 formula

[0032] material name parts by weight SBR 80 natural rubber 20 Carbon black N234 25 Carbon black N115 15 Conductive carbon black 5 graphite 1 Zinc oxide 5 stearic acid 3 Antiaging agent 4020 2 Antiaging agent RD 1 Environmentally friendly aromatic oil 15 sulfur 2.0 N-cyclohexyl-2-benzothiazole sulfenamide 1.85 N-Cyclohexylthiophthalimide 0.2

[0033] Table 4 Properties of vulcanizate

[0034] project Example 1 Example 2 Example 3 Tensile strength / MPa 24.46 21.30 22.96 Elongation at break / % 494 432 447 100% modulus stress / Mpa 3.35 2.77 2.76 300% modulus stress / MPa 15.75 12.90 13.01 Volume resistivity / (Ω·cm) 2×10 5

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PUM

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Abstract

The invention relates to conductive rubber. The conductive rubber provided by the invention comprises the following components in parts by weight: 70-90 parts of styrene butadiene rubber, 10 to 30 parts of natural rubber, 20 to 60 parts of carbon black, 2 to 10 parts of conductive carbon black, 0.5 to 2 parts of graphite, 3 to 5 parts of zinc oxide, 1 to 3 parts of stearic acid, 2 to 5 parts of ananti-aging agent, 12 to 25 parts of environment-friendly aromatic hydrocarbon oil, 1.5 to 2.5 parts of sulfur, 1 to 3 parts of N-cyclohexyl-2-benzothiazole sulfenamide and 0.1 to 0.5 part of N-(cyclohexylthio)phthalimide. The conductive rubber has beneficial effect that the prepared conductive rubber has good conductivity and mechanical properties, and can meet the requirements of rubber products.

Description

technical field [0001] The invention belongs to the field of rubber, in particular to a conductive rubber. Background technique [0002] With the gradual expansion of the application field of polymer materials, the requirements for the performance of functional polymer materials are also increasing. Composite conductive polymer materials are functional polymer materials composed of polymer materials and conductive fillers through dispersion, lamination and compounding, and formation of surface conductive films. Among them, the dispersed composite conductive polymer material is a material formed by uniformly filling conductive materials into the polymer matrix in different ways and processing techniques. The performance index of the conductive material has a great influence on the conductivity and other properties of the final product. influences. [0003] At present, non-metallic fillers in conductive rubber mainly include carbonaceous particles such as carbon black, graph...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08L7/00C08L91/00C08K13/02C08K3/04C08K3/22C08K5/09C08K5/47
CPCC08L9/06C08L2205/03C08K2201/014C08K2201/001C08K2003/2296C08L7/00C08L91/00C08K13/02C08K3/04C08K3/22C08K5/09C08K5/47
Inventor 王婷陈宏姜云平秦锴于淼
Owner BEIJING RES & DESIGN INST OF RUBBER IND
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