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Rubber material as well as preparation method and application thereof

A rubber material and rubber material technology, applied in the field of functional material preparation, can solve the problems of poor fatigue resistance, lack of shock absorption effect, ineffective fixing of exhaust pipes, etc., and achieves good material strength and tear resistance. , The effect of good fatigue resistance

Inactive Publication Date: 2019-12-10
厦门市金汤橡塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the static stiffness is too large, the rubber is not easy to deform, and the shock absorption effect is not achieved; if the static stiffness is too small, the deformation of the rubber is too large, the fatigue resistance becomes poor, and even the exhaust pipe cannot be effectively fixed

Method used

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  • Rubber material as well as preparation method and application thereof
  • Rubber material as well as preparation method and application thereof
  • Rubber material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Prepare rubber material, take raw material according to table 1;

[0058] Mixing: put EPDM rubber and oil-extended ethylene propylene rubber into the internal mixer, masticate for 3 minutes, put in active zinc oxide, stearic acid, carbon black, white carbon black, and flow dispersant and mix for 4 minutes; Then add softener and knead for 4 minutes; when the temperature reaches 115-125°C, finally add BIBP peroxide and sulfur and knead for 0.5 minutes to get a good mixing compound;

[0059] Opening: Put the mixed rubber material into the open mill, the roller distance is 5-6mm, roll twice, adjust the roller distance to 1-1.5mm for thin pass twice, adjust the roller distance to 5-6mm and roll twice After the film, the thickness of the film is 8mm.

[0060] Table 1 raw material consumption table / weight part

[0061]

Embodiment 2

[0063] The rubber material was prepared, and the amount of raw materials was shown in Table 1, and the preparation method was the same as in Example 1.

Embodiment 3

[0065] The rubber material was prepared, and the amount of raw materials was shown in Table 1, and the preparation method was the same as in Example 1.

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Abstract

The invention relates to a rubber material as well as a preparation method and application thereof. The rubber material is composed of the following raw materials in parts by weight: 60-100 parts of ethylene-propylene-diene rubber, 30-40 parts of oil-filled ethylene propylene rubber, 40-50 parts of carbon black, 5-15 parts of white carbon black, 30-50 parts of softening oil, 0.1-5 parts of anti-aging agent, 1-10 parts of activated zinc oxide, 0.01-1 part of stearic aicd, 0.1-5 parts of flowing dispersant, 0.1-5 parts of BIBP peroxide and 0.01-1 part of sulfur. The rubber material is obtained by internally mixing and open-milling all the raw materials after mixing the raw materials sequentially in batches. The rubber material is designed according to a unique formula, so that the ratio of dynamic stiffness to static stiffness of the material is smaller than 3, the preparation demand of an elastic buffering part can be met, meanwhile, the static stiffness is within the range of 25+ / -3 N / mm, and the rubber material is good in fatigue resistance and high in material strength and tear resistance.

Description

technical field [0001] The invention relates to the preparation technology of functional materials, especially a rubber material and its preparation method and application. Background technique [0002] Shock-absorbing rubber is a vulcanized rubber product that prevents the transmission of vibration and impact or acts as a buffer. It is widely used in the automobile, bridge and high-speed rail industries. In order to describe the dynamic resilience of shock-absorbing rubber, the dynamic-static stiffness ratio is introduced, that is, the ratio of the dynamic modulus to the static modulus of rubber-like elastic materials. The larger the ratio, the worse the shock-absorbing effect, and the harder the rubber is to deform at high frequencies. , the vibration of the road surface cannot be effectively transmitted, and it is directly transmitted to the car body. The smaller the ratio, the better the high-frequency (high-speed in the car) shock absorption effect. The reaction force a...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K13/02C08K3/22C08K5/09C08K5/098C08K3/04C08K3/36C08K3/06C08K5/14
CPCC08K2003/2296C08L23/16C08L2205/025C08K13/02C08K3/22C08K5/09C08K5/098C08K3/04C08K3/36C08K3/06C08K5/14
Inventor 何青松黄阳
Owner 厦门市金汤橡塑有限公司
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