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A kind of high elongation at break diene rubber compound and preparation method thereof

A diene rubber and elongation technology, applied in the field of high elongation at break diene rubber compound and its preparation

Active Publication Date: 2021-02-26
CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem in the prior art that after adding a reinforcing agent, the elongation at break of diene vulcanized rubber is reduced to between 100-550%, and to provide a diene rubber compound with high elongation at break and its preparation method

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  • A kind of high elongation at break diene rubber compound and preparation method thereof
  • A kind of high elongation at break diene rubber compound and preparation method thereof
  • A kind of high elongation at break diene rubber compound and preparation method thereof

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Embodiment Construction

[0025] In order to further understand the present invention, the embodiments of the present invention are described in detail below, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the present invention.

[0026] The high elongation at break diene rubber compound of the present invention consists of 100 parts by weight of diene rubber, 10-40 parts by weight of carbon black, 1-20 parts by weight of white carbon black, 1-8 parts by weight of a coupling agent, 3- It is composed of 6 parts by weight of zinc oxide, 1-4 parts by weight of stearic acid, 2-8 parts by weight of protective agent, 0.6-2.5 parts by weight of sulfur and 0.6-2 parts by weight of accelerator.

[0027] In the above technical scheme, the diene rubber is a mixture of one or more of natural rubber, polyisoprene rubber, and butadiene rubber. When the diene rubber contains butadiene rubber,...

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Abstract

The invention relates to a high-elongation-at-break diene rubber compound and a preparation method thereof, and belongs to the technical field of rubber. The technical problem that in the prior art, after a reinforcing agent is added, the elongation at break of diene vulcanized rubber is reduced to 100-550% is solved. The rubber compound is prepared from 100 parts by weight of diene rubber, 10-40parts by weight of carbon black, 1-20 parts by weight of white carbon black, 1-8 parts by weight of a coupling agent, 3-6 parts by weight of zinc oxide, 1-4 parts by weight of stearic acid, 2-8 partsby weight of a protective agent, 0.6-2.5 parts by weight of sulfur and 0.6-2 parts by weight of an accelerant. The elongation at break of the rubber compound exceeds 650%, the hardness is greater than60A, and the rubber compound has considerable fatigue performance and can provide technical potential for the application field of high-deformation rubber materials.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to a diene rubber compound with high elongation at break and a preparation method thereof. Background technique [0002] Rubber (Rubber) refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under a small external force, and can return to its original shape after the external force is removed. [0003] The elongation at break of rubber is very high, and the elongation at break of diene vulcanized rubber without reinforcing agent can reach more than 700%, but the fatigue and modulus of rubber without reinforcement are very low, and there is no use. After adding a reinforcing agent, the elongation at break of the rubber will be reduced. For example, after adding a reinforcing agent, the elongation at break of the diene vulcanized rubber is between 100-550%. Contents of the invention [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/00C08K13/04C08K7/26C08K3/04C08K3/22C08K5/09C08K3/06
CPCC08K2003/2296C08K2201/005C08K2201/006C08L7/00C08L9/00C08L2205/025C08L2205/03C08K13/04C08K7/26C08K3/04C08K3/22C08K5/09C08K3/06
Inventor 杨小牛王晓建郇彦郑书铁
Owner CHANGCHUN INST OF APPLIED CHEMISTRY - CHINESE ACAD OF SCI