Automobile door-plate wire-harness protective-sleeve rubber composition and processing technology thereof

Abstract

The invention discloses an automobile door-plate wire-harness protective-sleeve rubber composition and a processing technology thereof. The composition is prepared from the following raw materials in parts by weight: 40-60 parts by weight of natural rubber, 10-30 parts by weight of cis-1,4-polybutadiene rubber, 20-30 parts by weight of ethylene-propylene rubber, 4-9 parts by weight of an activator, 0.5-2.5 parts by weight of stearic acid, 4-6 parts by weight of an anti-ageing agent, 1.5-3.5 parts by weight of a coupling agent, 25-45 parts by weight of a reinforcing agent, 5-15 parts by weight of a plasticizer, 1.5-3 parts by weight of a vulcanizing agent, and 0.5-2.0 parts by weight of a promoter. The processing technology successively comprises steps of first-segment rubber mixing, first standing, second-segment vulcanizing, second standing and the like. The composition possesses excellent heat resistance, ageing resistance, ozone resistance, high strength and high elasticity, does not pollute vehicle body, guarantees a protective sleeve to not fail, not rupture and be not frequently replaced because of damage after long-term repeated tension, and helps to reduce cost loss.

Description

technical field [0001] The invention relates to a rubber composition for a door panel wiring harness protective cover for automobiles and a processing technology thereof, belonging to the technical fields of rubber products and chemicals. Background technique [0002] The door panel wire harness protection cover is used to prevent the wear of the wire harness and to make the car body beautiful. The door is opened and closed frequently and the protective cover is exposed to the air, so the rubber material of the protective cover has high strength and ozone resistance, otherwise the protective cover of the wiring harness will be damaged and cracked prematurely. The cost of a rubber part is not high, but it is very troublesome to replace. Some car owners tend to ignore these small problems and do not replace them in time, which will lead to line wear, short circuit, and even fire. Contents of the invention [0003] The technical problem to be solved by the present invention ...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is: the damage, cracks, and pollution of the protective cover of the door panel wire harness affect the appearance and troublesome replacement, if it is not replaced in time after the damage, it may even cause the circuit to burn

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