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Automobile braking air chamber rubber diaphragm sizing material formula taking butadiene-styrene rubber as main sizing material

A technology for automobile braking and rubber diaphragms, applied in the direction of adhesives, adhesive types, conjugated diene adhesives, etc., which can solve the problems of insufficient load pressure, poor product recovery force, and large compression deformation.

Inactive Publication Date: 2012-08-01
程旻
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects, the present invention provides an automobile brake air chamber rubber diaphragm compound formula mainly based on styrene-butadiene rubber, so as to solve the problems of low strength of styrene-butadiene rubber, poor product recovery force, large compression deformation, insufficient load pressure, etc. question

Method used

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  • Automobile braking air chamber rubber diaphragm sizing material formula taking butadiene-styrene rubber as main sizing material
  • Automobile braking air chamber rubber diaphragm sizing material formula taking butadiene-styrene rubber as main sizing material
  • Automobile braking air chamber rubber diaphragm sizing material formula taking butadiene-styrene rubber as main sizing material

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Embodiment Construction

[0024] According to the embodiment of the present invention, the styrene-butadiene rubber is the main body of the automobile brake air chamber rubber diaphragm compound formula, and the parts by weight of the formula raw materials include:

[0025]

[0026]

[0027] In order to ensure good adhesion between the styrene-butadiene compound and the fabric fibers, 0-15 parts of white carbon black and 0-5 parts of tackifier can be added to the above raw materials.

[0028] The above-described embodiment of the present invention is the automobile brake air chamber rubber diaphragm compound formula based on styrene-butadiene rubber, and its raw material parts by weight are most preferably:

[0029]

[0030]

[0031] The selection and collocation of three rubber materials and various additives are as follows:

[0032]

[0033]

[0034]

[0035]

[0036] The implementation standard of the formula detection index of the present invention is the enterprise standard...

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Abstract

The invention relates to an automobile braking air chamber rubber diaphragm sizing material formula taking butadiene-styrene rubber as a main sizing material. The formula comprises the following raw materials in parts by weight: 55-100 parts of styrene-butadiene rubber, 0-30 parts of natural rubber, 0-25 parts of cis-butadiene rubber, 0.3-2.5 parts of a vulcanizing agent, 1.0-3.5 parts of an accelerating agent, 3-5 parts of zinc oxide or a substitute, 1-3 parts of stearic acid, 2-4 parts of an anti-ageing agent, 0.5-1.5 parts of a demolding agent, 0-1 part of a dispersing agent FL, 0-5 parts of an adhesive RC or a substitute, 50-100 parts of carbon black and 0-25 parts of a softening and plasticizing agent. The formula has the beneficial effects that: the styrene-butadiene rubber and a small amount of natural rubber are used together, and a vulcanizing system is adjusted correspondingly, so that the problems of high compressive permanent deformation caused by the adoption of butadiene-styrene rubber as a main body sizing material, over high crack expanding speed of flex cracking, low bonding performance, low tensile strength, insufficient product service life caused by frequent insufficient load pressure on the product, and the like can be solved.

Description

technical field [0001] The invention relates to the technical field of rubber diaphragms for automobile brake chambers, in particular to a formula of rubber diaphragms for automobile brake chambers with styrene-butadiene rubber as the main body. Background technique [0002] The rubber diaphragm of the automobile brake chamber is a rubber fabric diaphragm used for pressure transmission in the automobile brake chamber, and is the core component of the automobile brake chamber. In the automobile brake air chamber, it plays the role of transmitting pressure and converting the pressure into mechanical thrust. It can provide a large force under a small stroke, and then play the role of vehicle braking. The working pressure is generally It is 0.5-0.8 MPa, and the working temperature is generally -40°C to 70°C; due to the high strength of natural rubber raw rubber, it has good elasticity, resistance to flex cracking and crack expansion, and good adhesion to fabric fibers. Therefor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L9/00C08K13/02C08K3/22C08K3/04C08K3/36C08K5/09C09J109/06
Inventor 程旻
Owner 程旻
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