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Preparation method of starch modified white carbon black/rubber composite filler

A starch modification and composite filler technology, applied in the rubber field, can solve the problems of limited starch filling amount, long production cycle, complex process, etc., and achieve the improvement of wet skid resistance and wear resistance, low cost and simple process. Effect

Inactive Publication Date: 2014-07-23
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has a long production cycle, complex process, limited amount of starch added, and starch is prone to agglomeration in subsequent processing.

Method used

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  • Preparation method of starch modified white carbon black/rubber composite filler
  • Preparation method of starch modified white carbon black/rubber composite filler
  • Preparation method of starch modified white carbon black/rubber composite filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 10g of glutinous rice starch into 90g of water and stir evenly to make a starch suspension, gelatinize it under the condition of 80°C for 30min; according to the solid content, take starch paste with a starch content of 10g, in The starch paste was evenly dispersed in the silica / styrene-butadiene rubber composite material on a double-roll mill. The basic formula is shown in Table 3, and the starch-modified silica / styrene-butadiene rubber composite material was obtained, and its properties were measured after vulcanization.

Embodiment 2

[0021] Add 10g of cornstarch into 56.67g of water and stir evenly to make a starch suspension, gelatinize it at 90°C for 20min; according to the solid content, take starch paste with a starch content of 2g, The starch paste was uniformly dispersed in the silica / styrene-butadiene rubber composite material in an internal mixer. The basic formula is shown in Table 3, and the starch-modified silica / styrene-butadiene rubber composite material was obtained, and its properties were measured after vulcanization.

Embodiment 3

[0023] Add 10g of pea starch into 90g of water and stir evenly to make a starch suspension, gelatinize it at 80°C for 30min; according to the solid content, take starch paste with a starch content of 6g, The starch paste was uniformly dispersed in the silica / natural rubber composite material on a double-roll mill. The basic formula is shown in Table 3, and the starch-modified silica / natural rubber composite material was obtained, and its properties were measured after vulcanization.

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Abstract

The invention relates to a preparation method of a starch modified white carbon black / rubber composite material, which comprises the following step: by using traditional rubber processing equipment, uniformly dispersing a previously gelatinized starch paste into a white carbon black / rubber composite material to obtain a starch modified white carbon black / rubber composite material. The introduced starch macromolecular chains and silicon hydroxyl groups on the surface of white carbon black interact with each other, so that the dispersion of the filler in the rubber matrix is reinforced, thereby improving the slip resistance and abrasion resistance of the white carbon black / rubber composite material and reducing the rolling resistance of the white carbon black / rubber composite material. According to the invention, the method is simple and easy to implement, does not change the traditional rubber processing mode, is short in production cycle, low in raw material cost, friendly to environment and suitable for preparation of various vulcanized rubber products, and has wide application prospects.

Description

technical field [0001] The invention relates to a preparation method of a starch-modified white carbon black / rubber composite material, which belongs to the field of rubber. Background technique [0002] The technical requirements of modern automobiles on tire performance are increasing day by day, and tires are developing towards high-tech content and refinement. Anti-wet, low rolling resistance, high-performance and multi-functional tires account for an increasing proportion of tires. Against this background, "green tires" emerged as the times require. The so-called "green tires" refer to radial tires with low rolling resistance due to the application of new materials and designs, resulting in low fuel consumption and low exhaust emissions. Green tires have the advantages of low carbon and environmental protection, reducing fuel consumption, optimizing tires and improving safety. Among them, reducing the rolling resistance of the tread and ensuring good wet skid resistan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L9/02C08L3/02C08K3/36
Inventor 王益庆刘佳音张立群
Owner BEIJING UNIV OF CHEM TECH
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