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A kind of rubber composition and its preparation method and application

A rubber composition, butyl rubber technology, applied in tire parts, transportation and packaging, special tires, etc., can solve the problems of high cost of butyl wind tires, astonishing tire consumption, hindering development, etc., to achieve guaranteed performance, relieve environmental pressure, and improve production efficiency

Active Publication Date: 2018-08-14
KUNMING YUNREN TIRE MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the consumption of tires is astonishing nowadays. Only by ensuring the number of times of use of wind tires can the quality of tire products be guaranteed.
In this form, the price of butyl rubber has risen, and the cost of butyl wind tires has remained high. The expensive cost has greatly hindered the development. In order to reduce costs, a substitute for butyl rubber was screened to partially replace butyl rubber. rubber, of great significance
Moreover, it is difficult for high-temperature-resistant rubber products to have raw materials that are low in finished products and can maintain their original properties.

Method used

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  • A kind of rubber composition and its preparation method and application

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preparation example Construction

[0022] The preparation method of described rubber composition, comprises the following steps:

[0023] 1) One-stage mixing process: put butyl rubber and chlorobutyl reclaimed rubber into the F160 internal mixer, mix the rubber for 85~95s, operate for 20s, and rotate the rotor at 28~32 rpm; then lift the upper Stearic acid and high wear-resistant carbon black are added to the top bolt, the pressing time is 115~125s, and the operation time is 15s; the top bolt is lifted for 115~125s, and the operation time is 5s; 125s, operation time 5s; degumming 20s, degumming temperature 170~180℃; then on the open mill with a roller distance of 8mm and keeping the left and right sides consistent, turn over for no less than 6 times, and then cool down the next piece to obtain a section of kneading glue;

[0024] 2) Two-stage mixing process: Put 2 / 3 of the first-stage mixed rubber into the F160 internal mixer, the non-pressing time is 25~35s, and the operating time is 20s; then lift the bolt, ...

Embodiment 1

[0031] 1) One-stage mixing process: put 100 parts of butyl rubber and 86.64 parts of chlorinated butyl reclaimed rubber into the F160 internal mixer, mix the rubber for 90s, operate for 20s, and the rotor speed is 30 rpm; Add 1.29 parts of stearic acid and 60 parts of high wear-resistant carbon black to the top bolt. The pressing time is 120s, and the operation time is 15s; the top bolt is lifted up for 120s, and the operation time is 5s; The operation time is 5s; the glue removal is 20s, and the glue removal temperature is 178°C; then, on the open mill with a roller distance of 8mm and keeping the left and right sides consistent, turn over 6 times and then cool down the next piece to obtain a section of mixed rubber;

[0032] 2) Two-stage mixing process: put 2 / 3 of the first-stage rubber into the F160 internal mixer, the non-pressing time is 30s, and the operating time is 20s; then lift the bolt, and put the remaining 1 / 3 of the first-stage rubber into the F160 In the interna...

Embodiment 2

[0039]1) One-stage mixing process: put 100 parts of butyl rubber and 75 parts of chlorinated butyl reclaimed rubber into the F160 internal mixer, mix the rubber for 85s, operate for 20s, and rotate the rotor at 28 rpm; then lift the upper Add 1 part of stearic acid and 50 parts of high wear-resistant carbon black to the top bolt. The pressing time is 115s, and the operation time is 15s. Lift the top bolt and press for 115s, and the operation time is 5s. The operation time is 5s; the glue removal is 20s, and the glue removal temperature is 170°C; then, on the open mill with a roller distance of 8mm and keeping the left and right sides consistent, the next piece is cooled after turning 7 times, and a section of mixed rubber is obtained;

[0040] 2) Two-stage mixing process: put 2 / 3 of the first-stage rubber into the F160 internal mixer, the non-pressing time is 25s, and the operating time is 20s; then lift the bolt, and put the remaining 1 / 3 of the first-stage rubber into the F16...

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Abstract

The invention discloses a rubber composition and a preparing method and application thereof. The rubber composition comprises, by weight, 100 parts of butyl rubber, 75-90 parts of chloridized butyl-reclaimed rubber, 1-3 parts of stearic acid, 50-65 parts of carbon black with high wear resistance, 1-3 parts of vulcanization accelerator and 10-16 parts of sulfurizing reagent. By partially replacing butyl rubber with chloridized butyl-reclaimed rubber, an optimal formula proportion is determined through a large number of experiments, and the rubber composition suitable for manufacturing wind tires is prepared by mean of the most reasonable machining process. According to the wind tires manufactured by means of the rubber composition, original performances are maintained.

Description

technical field [0001] The invention belongs to the technical field of rubber products, and in particular relates to a rubber composition and its preparation method and application. Background technique [0002] At present, in the vulcanization and molding process of tires, most of them use the method of vulcanization of air tires, that is, it is necessary to place air-filled air tires inside the green tire. In the process of making tires, wind tires are also consumables. When existing rubber factories produce motorcycles, electric vehicles, rickshaws and bicycle tires, the wind tires generally used are made of traditional butyl rubber. . Moreover, the consumption of tires is astonishing nowadays, and only by ensuring the number of times of use of wind tires can the quality of tire products be guaranteed. In this form, the price of butyl rubber has risen, and the cost of butyl wind tires has remained high. The expensive cost has greatly hindered the development. In order t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/22C08L15/02C08L61/08C08K5/09C08K3/04C08K3/16B29B7/72B60C1/00
CPCB29B7/726B29B7/728B60C1/00C08L23/22C08L2205/03C08L2207/20C08L15/02C08L61/06C08K5/09C08K3/04C08K3/16
Inventor 张明秋张培宾马洪涛何学良
Owner KUNMING YUNREN TIRE MFG CO LTD
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