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Rectorite/butadiene styrene rubber nano composite material for manufacturing tyre tube

A nano-composite material, styrene-butadiene rubber technology, applied in special tires, tire parts, transportation and packaging, etc., can solve problems such as unfavorable joint bonding, affecting normal production and product performance, and reducing bonding ability, and achieve improvement. Processability and mechanical properties, eliminate the effect of delayed vulcanization, improve the effect of self-adhesion

Inactive Publication Date: 2009-01-21
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this styrene-butadiene rubber is filled with a large amount of rectorite sheets, the rubber material becomes hard, the adhesion ability is reduced, and the mechanical properties are poor. Delayed vulcanization of rubber, affecting normal production and product performance
If common organic modifiers are added, although the mechanical properties are improved and the effect of delayed vulcanization is alleviated, the rubber compound will be further hardened and the adhesive performance will be further reduced, which is not conducive to the bonding of joints during inner tube production, and processing is difficult , and relatively speaking, the price of this type of organic modifier is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Prepare 130 parts of rectorite / styrene-butadiene rubber nano-composites (containing 100 parts of styrene-butadiene rubber, 30 parts of rectorite) with emulsion coprecipitation method, on double-roller open mill, this above-mentioned compound is plasticized, then Add various additives in turn: 5 parts of zinc oxide, 2 parts of stearic acid, 0.5 parts of accelerator D, 0.5 parts of accelerator DM, 0.2 parts of accelerator TT, 1 part of ethylene glycol, 1 part of anti-aging agent 4010NA, 2 parts of sulfur parts, and kneaded to obtain rubber compound. Then vulcanize at 150°C according to the positive curing time to obtain vulcanized rubber. Tested according to relevant standards, the performance of the composite material is shown in Table 1.

Embodiment 2

[0017] Prepare 160 parts of rectorite / styrene-butadiene rubber nano-composites (containing 100 parts of styrene-butadiene rubber, 60 parts of rectorite) with emulsion coprecipitation method, on double-roller open mill, this above-mentioned compound is masticated, then Add various additives in turn: 5 parts of zinc oxide, 2 parts of stearic acid, 0.5 parts of accelerator D, 0.5 parts of accelerator DM, 0.2 parts of accelerator TT, 4 parts of glycerin, 1 part of anti-aging agent 4010NA, 2 parts of sulfur, Knead to obtain rubber compound. Then vulcanize at 150°C according to the positive curing time to obtain vulcanized rubber. Tested according to relevant standards, the performance of the composite material is shown in Table 1.

Embodiment 3

[0019] Prepare 160 parts of rectorite / styrene-butadiene rubber nano-composites (containing 100 parts of styrene-butadiene rubber, 60 parts of rectorite) with emulsion coprecipitation method, on double-roller open mill, this above-mentioned compound is masticated, then Add various additives in turn: 5 parts of zinc oxide, 2 parts of stearic acid, 0.5 parts of accelerator D, 0.5 parts of accelerator DM, 0.2 parts of accelerator TT, 4 parts of glycerin, 4 parts of triethanolamine, and 1 part of anti-aging agent 4010NA , 2 parts of sulfur, mixed to obtain rubber compound. Then vulcanize at 150°C according to the positive curing time to obtain vulcanized rubber. Tested according to relevant standards, the performance of the composite material is shown in Table 1.

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PUM

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Abstract

Rectorite / styrene butadiene rubber nanometer composite material for producing an inner tire belongs to the rubber product field. The invention adopts inorganic rectorite undergoing no modification, and also adopts an emulsion coprecipitation method to prepare the rectorite / styrene butadiene rubber nanometer composite material. During the mixing and processing, besides processing agents frequently used for rubber, a micromolecular organic compound containing hydroxy and / or amido is added to obtain the rectorite / styrene butadiene rubber nanometer composite material suitable for producing the inner tire. The material has good autoadhesion, low hardness, high curing rate, good mechanical properties, good air tightness and relatively low cost.

Description

technical field [0001] The invention relates to a rectorite / styrene-butadiene rubber nanocomposite material used for making an inner tube, and belongs to the technical field of rubber products. Background technique [0002] It is well known in the art that tire innertubes must be constructed of a material with low air permeability and yet soft. Butyl rubber, specifically halobutyl rubber, is almost the only rubber used for this purpose. Until recently, only this class of polymers had the properties necessary to make tire innerliners and tire innertubes. However, these polymers are expensive compared to general-purpose rubber. Therefore, there is a need to develop rubber compounds that are less expensive and have lower air permeability for use in tire innertubes. In Exxon Chemical Patent Company's invention patent (ZL94192043.7) for the composition of the tire inner liner and inner tube, the principle and effect of the clay sheet are well described. However, after more th...

Claims

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Application Information

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IPC IPC(8): C08L9/06C08K3/34C08K5/053C08K5/17B60C1/00
CPCY02T10/862
Inventor 张立群何少剑王益庆吴晓辉吴友平赵蔚
Owner BEIJING UNIV OF CHEM TECH