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Automobile door sealing rubber

A technology for sealing rubber and automobile doors, applied in the field of automobile rubber materials, can solve the problems of high density and hardness of dense rubber, poor sealing performance, wear and other problems, and achieve strong thermal insulation performance, good insulation performance, and high chemical stability. Effect

Inactive Publication Date: 2017-08-18
南宁市钱隆汽车租赁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the prolongation of the service time of the vehicle, these rubber parts will gradually harden, age or even crack. Once the above phenomenon occurs, it will cause poor sealing, which will not only fail to resist wind and rain, reduce the comfort of the vehicle, but also cause labor hours during maintenance. The cost and material cost are high, and the common damages of the current automobile door sealing rubber include discoloration, mildew, wear, sealing performance, aging and poor sealing performance, etc.
[0003] The traditional covering rubber adopts dense rubber, but the density and hardness of dense rubber are relatively large, and there is a problem that assembly is relatively difficult

Method used

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  • Automobile door sealing rubber

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Effect test

Embodiment 1

[0017] The components of the automobile door sealing rubber of the present invention are calculated in parts by weight: 30 parts of basalt fiber, 15 parts of nitrile rubber, 14 parts of vermiculite sheet, 7 parts of cadmium diethyldithiocarbamate, 5 parts of sulfur, high 6 parts of wear-resistant carbon black, 1 part of anti-aging agent, and 0.5 part of defoamer.

[0018] The preparation method of described rubber is:

[0019] Step 1: drop the nitrile rubber into the open mill and stir for 5 minutes;

[0020] Step 2: Put the vermiculite flakes into the open mill after roasting at a high temperature of 1200°C, and then add the remaining components into the open mill for mixing to obtain the mixed rubber;

[0021] Step 3: Routinely vulcanize the mixed rubber to obtain rubber.

Embodiment 2

[0023] Each component of the automobile door sealing rubber of the present invention is calculated by weight: 41 parts of basalt fiber, 18 parts of nitrile rubber, 12 parts of vermiculite sheet, 4 parts of cadmium diethyldithiocarbamate, 3 parts of sulfur, high 7 parts of wear-resistant carbon black, 2 parts of anti-aging agent, and 0.8 part of defoamer.

[0024] The preparation method of described rubber is:

[0025] Step 1: drop the nitrile rubber into the open mill and stir for 8 minutes;

[0026] Step 2: After the vermiculite flakes are roasted at a high temperature of 1000°C, they are put into the open mill, and then the remaining components are added into the open mill for mixing to obtain the rubber compound;

[0027] Step 3: Routinely vulcanize the mixed rubber to obtain rubber.

Embodiment 3

[0029] The components of the automobile door sealing rubber of the present invention are calculated in parts by weight: 50 parts of basalt fiber, 23 parts of nitrile rubber, 18 parts of vermiculite sheet, 6 parts of cadmium diethyldithiocarbamate, 4 parts of sulfur, high 8 parts of wear-resistant carbon black, 3 parts of anti-aging agent, and 1 part of defoamer.

[0030] The preparation method of described rubber is:

[0031] Step 1: drop the nitrile rubber into an open mill and stir for 10 minutes;

[0032] Step 2: Put the vermiculite flakes into the open mill after roasting at a high temperature of 1120°C, and then add the remaining components into the open mill for mixing to obtain the mixed rubber;

[0033] Step 3: Routinely vulcanize the mixed rubber to obtain rubber.

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Abstract

The invention provides automobile door sealing rubber. The automobile door sealing rubber is characterized by being prepared from the following components in parts by weight: 30 to 50 parts of basalt fiber, 15 to 23 parts of butadiene-acrylonitrile rubber, 12 to 18 parts of flake vermiculite, 4 to 7 parts of cadmium diethyldithiocarbamate, 3 to 5 parts of sulfur, 6 to 8 parts of high-wear-resisting carbon black, 1 to 3 parts of an anti-aging agent and 0.5 to 1 part of a defoaming agent. According to the automobile door sealing rubber provided by the invention, the flake vermiculite is added and is then blended with other components, so that the prepared automobile door sealing rubber has very strong heat preservation and heat insulation properties; the flake vermiculite added in the invention can play roles of a reinforcing agent and a heat stabilizer; by utilizing the excellent properties of good high temperature resistance, oxidation resistance, radiation resistance, heat insulation and noise insulation, good filterability, high compression strength and shear strength, good insulativity, high milk corrosivity and chemical stability and applicability in use under various environments and the like of the basalt fiber, the prepared automobile door sealing rubber is good in sealing property, is high in temperature resistance and is high in compression strength.

Description

technical field [0001] The invention relates to the field of automobile rubber materials, in particular to an automobile door sealing rubber. Background technique [0002] There are relatively many rubber parts on the car, most of which are used to seal the windows and shock absorbing parts. On the one hand, it has the function of waterproofing, and on the other hand, it has the functions of sound insulation, shock absorption and buffering. With the prolongation of the service time of the vehicle, these rubber parts will gradually harden, age or even crack. Once the above phenomenon occurs, it will cause poor sealing, which will not only fail to resist wind and rain, reduce the comfort of the vehicle, but also cause labor hours during maintenance. The cost and material cost are high, and the common damages of the current automobile door sealing rubber include discoloration, mildew, wear, sealing performance, aging and poor sealing performance. [0003] Traditional covering ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08K13/04C08K7/10C08K7/00C08K7/26C08K3/34C08K3/04C08K5/39
CPCC08K13/04C08K3/04C08K3/34C08K5/39C08K7/00C08K7/10C08K7/26C08L2312/00C08L9/02
Inventor 黄彬
Owner 南宁市钱隆汽车租赁有限公司
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