Rubber diaphragm used in automobile brake chamber and preparation method thereof

A rubber diaphragm and automobile brake technology, applied in the field of polymer materials, can solve the problems of affecting the service life of the brake chamber, poor anti-aging and anti-fatigue effects, etc., and achieve good anti-aging and anti-fatigue effects

Inactive Publication Date: 2015-05-13
LIUZHOU YINGHANG AUTO PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its performance directly affects the service life of the brake chamber, and the existin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] A kind of automobile brake air chamber rubber diaphragm of the present invention is as follows:

[0011] Nitrile rubber 75 kg, neoprene rubber 18 kg, stearic acid 4 kg, magnesium dimethacrylate 3 kg, drying oil alkyd resin 4 kg, paraffin wax 1.5 kg, dilauryl thiodipropionate 4 kg, over Diacetyl oxide 2.5 kg, light calcium carbonate 0.6 kg, molybdenum disulfide 0.6 kg, aromatic oil 0.6 kg, alumina 9 kg, white carbon black 7 kg, antioxidant 1.3 kg, sulfur 2 kg.

[0012] A kind of preparation method of automobile brake chamber rubber diaphragm of the present invention is as follows:

[0013] The nitrile rubber and chloroprene rubber in the formula amount are thinly passed separately and then mixed evenly and added to the open mill, and then the remaining components are added into the open mill for mixing until uniform, and then the sheet is produced to obtain the mixed rubber. Carry out one-stage vulcanization, control the vulcanization temperature to 160°C, the vulcaniza...

Embodiment 2

[0015] A kind of automobile brake air chamber rubber diaphragm of the present invention is as follows:

[0016] Nitrile rubber 70kg, neoprene 15kg, stearic acid 3kg, magnesium dimethacrylate 4kg, drying oil alkyd resin 5kg, paraffin 1kg, dilauryl thiodipropionate 3kg, diacetyl peroxide 2kg, light 0.5kg of calcium carbonate, 0.8kg of molybdenum disulfide, 0.8kg of aromatic oil, 8kg of alumina, 6kg of white carbon black, 0.5kg of anti-aging agent, and 1.5kg of sulfur.

[0017] A kind of preparation method of automobile brake chamber rubber diaphragm of the present invention is as follows:

[0018] The nitrile rubber and chloroprene rubber in the formula amount are thinly passed separately and then mixed evenly and added to the open mill, and then the remaining components are added into the open mill for mixing until uniform, and then the sheet is produced to obtain the mixed rubber. Carry out one-stage vulcanization, control the vulcanization temperature to 150°C, the vulcaniza...

Embodiment 3

[0020] A kind of automobile brake air chamber rubber diaphragm of the present invention is as follows:

[0021] Nitrile rubber 80kg, neoprene 20kg, stearic acid 5kg, magnesium dimethacrylate 2kg, drying oil alkyd resin 3kg, paraffin wax 2kg, dilauryl thiodipropionate 5kg, diacetyl peroxide 3kg, light 0.8kg of calcium carbonate, 0.5kg of molybdenum disulfide, 0.5kg of aromatic oil, 10kg of alumina, 8kg of white carbon black, 2kg of antioxidant, and 2.5kg of sulfur.

[0022] A kind of preparation method of automobile brake chamber rubber diaphragm of the present invention is as follows:

[0023] The nitrile rubber and chloroprene rubber in the formula amount are respectively thinned and mixed into the open mill, and then the rest of the components are added into the open mill for mixing until uniform, and then the sheet is obtained to obtain the mixed rubber. Carry out one-stage vulcanization, control the vulcanization temperature to 170°C, vulcanize time to 40 minutes, and vul...

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PUM

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Abstract

The invention provides a rubber diaphragm used in an automobile brake chamber. The rubber diaphragm comprises the following components in parts by weight: 70-80 parts of butadiene-acrylonitrile rubber, 15-20 parts of chloroprene rubber, 3-5 parts of stearic acid, 2-4 parts of magnesium dimethacrylate, 3-5 parts of drying oil alkyd resin, 1-2 parts of paraffin, 3-5 parts of dilauryl thiodipropionate, 2-3 parts of diacetyl peroxide, 0.5-0.8 part of light calcium carbonate, 0.5-0.8 part of molybdenum disulfide, 0.5-0.8 part of aromatic hydrocarbon oil, 8-10 parts of aluminium oxide, 6-8 parts of white carbon black, 0.5-2 parts of anti-aging agent and 1.5-2.5 parts of sulfur. The invention also provides a preparation method of the rubber diaphragm. The rubber diaphragm has good anti-aging and antifatigue effects.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a rubber diaphragm of an automobile brake air chamber. Background technique [0002] The rubber diaphragm of the automobile brake chamber is a rubber fabric diaphragm used in the automobile brake chamber to transmit pressure. Its function is to convert the pressure of compressed air into mechanical thrust and play the role of vehicle braking. It is the executive component of the car braking system and an important security part on the car. Its performance directly affects the service life of the brake air chamber, and the anti-aging and anti-fatigue effect of the existing automobile brake air chamber rubber diaphragm is not good. Contents of the invention [0003] The invention provides an automobile brake air chamber rubber diaphragm; therefore, the invention also provides a preparation method thereof. [0004] The invention provides a rubber diaphragm ...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L11/00C08L67/08C08L91/06C08K13/02C08K5/09C08K5/098C08K3/26C08K3/30C08K3/22C08K3/36
CPCC08L9/02C08L2201/08C08L2205/035C08L11/00C08L67/08C08L91/06C08L91/00C08K13/02C08K5/09C08K5/098C08K2003/265C08K2003/3009C08K2003/2227C08K3/36C08K3/06
Inventor 莫海燕
Owner LIUZHOU YINGHANG AUTO PARTS
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