Mixed rubber used for automotive wiring harness pipes, and preparation method thereof

A technology of automotive wiring harness and rubber compounding, applied in the field of rubber, can solve the problems of high antistatic performance, anti-aging performance, high temperature resistance and mechanical strength, and achieve good high temperature aging resistance and good tensile strength.

Inactive Publication Date: 2018-06-01
昕中和成都胶业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the existing automobile wire harness tubes cannot have high antistatic performance, anti-aging performance, high temperature resistance and mechanical strength at the same time. and preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Rubber compound for automobile wire harness pipes, the raw material composition of the compound rubber is in proportion by weight:

[0041] Methyl phenyl vinyl silicone rubber, 60 parts, methyl vinyl silicone rubber, 30 parts, white carbon black, 10 parts, clay, 5 parts, stearic acid, 5 parts, blocked isocyanate curing agent, 1 part, Hexamethyldisilazane, 5 parts, Vinyltriethoxysilane, 1 part. The molar percentage of vinyl in the methyl vinyl silicone rubber is 0.01%, and the molar percentage of phenyl in the methyl phenyl vinyl silicone rubber is 12%.

[0042] The preparation method of the mixed rubber for automobile wire harness pipes, the specific operation is: adding each component of the raw materials into a mixer for mixing, and finally obtaining the finished mixed rubber. The mixing temperature of the raw materials in the kneader is 55° C., and after the kneading is uniform, vacuum treatment is carried out for 30 minutes to obtain the finished kneaded rubber.

Embodiment 2

[0044] Rubber compound for automobile wire harness pipes, the raw material composition of the compound rubber is in proportion by weight:

[0045] Methyl phenyl vinyl silicone rubber, 80 parts, methyl vinyl silicone rubber, 50 parts, white carbon black, 20 parts, clay, 15 parts, stearic acid, 15 parts, blocked isocyanate curing agent, 10 parts, Hexamethyldisilazane, 15 parts, Vinyltriethoxysilane, 8 parts. The molar percentage of vinyl in the methyl vinyl silicone rubber is 1.5%, and the molar percentage of phenyl in the methylphenyl vinyl silicone rubber is 18%.

[0046] The preparation method of the mixed rubber for automobile wire harness pipes, the specific operation is: adding each component of the raw materials into a mixer for mixing, and finally obtaining the finished mixed rubber. The mixing temperature of the raw materials in the kneader is 60° C., and after the kneading is uniform, vacuum treatment is carried out for 50 minutes to obtain the finished kneaded rubber...

Embodiment 3

[0048] Mixed rubber for automobile wire harness pipes, the composition of the mixed rubber raw materials is as follows in parts by weight:

[0049] Methyl phenyl vinyl silicone rubber, 65 parts, methyl vinyl silicone rubber, 35 parts, white carbon black, 12 parts, clay, 8 parts, stearic acid, 6 parts, blocked isocyanate curing agent, 3 parts, Hexamethyldisilazane, 8 parts, Vinyltriethoxysilane, 3 parts. The molar percentage of vinyl in the methyl vinyl silicone rubber is 0.05%, and the molar percentage of phenyl in the methylphenyl vinyl silicone rubber is 13%.

[0050] The preparation method of the mixed rubber for automobile wire harness pipes, the specific operation is: adding each component of the raw materials into a mixer for mixing, and finally obtaining the finished mixed rubber. The mixing temperature of the raw materials in the kneader is 58° C., and after the kneading is uniform, vacuum treatment is carried out for 40 minutes to obtain the finished kneaded rubber. ...

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PUM

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Abstract

The invention discloses a mixed rubber used for automotive wiring harness pipes, and a preparation method thereof. The mixed rubber comprises, by weight, 60 to 80 parts of methyl vinyl Phenyl Polysiloxane rubber, 30 to 50 parts of methyl vinyl silicone rubber, 10 to 20 parts of white carbon black, 5 to 15 parts of argil, 5 to 15 parts of stearic acid, 1 to 10 parts of an enclosed type isocyanate curing agent, 5 to 15 parts of hexamethyldisilazane, and 1 to 8 parts of vinyltriethoxysilane. The mixed rubber used for automotive wiring harness pipes possesses high tensile strength, tearing strength, and hardness; hardness change is 2 DEG or lower, and elongation at break is 10% or lower after 24h of high temperature aging at 200 DEG C, and excellent high temperature aging resistance is achieved.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a rubber compound for automobile wire harness pipes and a preparation method. Background technique [0002] The so-called rubber compound refers to the uncrosslinked and fluid rubber material in which the compounding ingredients are mixed in block, granular and powder raw rubber. Raw rubber or plasticized rubber is called mixed rubber after mixing the rubber with the compounding agent according to the formula. The rubber compound is the raw material for the manufacture of rubber products, that is, the semi-finished product, so the colloidal dispersion quality of the rubber compound is directly related to the quality of the finished product. At the same time, the viscoelasticity and rheology of the rubber compound directly affect the processing performance of the rubber material and post-production Advanced molding, extrusion, calendering, extrusion and other processing technology...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/07C08K13/02C08K3/36C08K3/34C08K5/09C08K5/29C08K5/5425
CPCC08L83/04C08L2201/04C08L2201/08C08L2205/025C08K13/02C08K3/36C08K3/346C08K5/09C08K5/29C08K5/5425
Inventor 郭克富包恒玺吴波
Owner 昕中和成都胶业有限公司
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