Preparation method of high-performance and low-temperature vulcanized natural rubber

A technology of natural rubber and low-temperature vulcanization, applied in the field of high-performance, low-temperature vulcanized natural rubber, can solve the problems of cross-linking bond breakage, decrease in physical and mechanical properties of vulcanizate, vulcanization reversion, etc., and achieve the effect of excellent performance
CN102492189AInactive Publication Date: 2012-06-13HAINAN UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HAINAN UNIVERSITY
Publication Date
2012-06-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a preparation method of high-performance and low-temperature vulcanized natural rubber, relates to a preparation method of a vulcanized natural rubber. In the formula of natural rubber, starch xanthate is added, and other auxiliaries, namely stearic acid, zinc oxide, a promoter M and sulfur are unchanged. Natural rubber is vulcanized at a lower temperature by virtue of an ordinary rubber processing technology and equipment in the presence of starch xanthate serving as a natural rubber modification auxiliary to prepare the high-performance vulcanized natural rubber.
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Description

technical field

[0001] The invention relates to a method for preparing natural rubber, in particular to a method for preparing high-performance, low-temperature vulcanized natural rubber. Background technique

[0002] Natural rubber is a natural polymer material with high elasticity. However, in most cases, raw rubber is sticky at high temperature and hard and brittle at low temperature, neither of which exhibits high elasticity, so that rubber has not been widely used for a long time after its discovery. Vulcanization refers to the chemical change process in which the linear macromolecular chains of rubber form a three-dimensional network structure through chemical crosslinking, thereby improving the performance of rubber. The vulcanization process of rubber is a complex chemical reaction process involving multiple components, which is affected by vulcanization temperature, time and pressure. The vulcanization temperature determines the quality of rubber products. The vul...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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