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Formula of low-heat anti-fatigue base rubber and preparation method of formula

An anti-fatigue, base glue technology, used in vehicle parts, tire parts, transportation and packaging, etc., can solve the problems of low heat generation and poor performance, achieve low heat generation, improve durability, and enhance fatigue resistance. Effect

Inactive Publication Date: 2018-11-06
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve the goal of low heat generation, the base rubber formula mainly uses N3 series carbon black as filler, and N3 series carbon black has poor performance in inhibiting crack growth

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A low heat generation, anti-fatigue tire base rubber formula and a preparation method thereof, wherein the components of the formula include 80 parts by weight of natural rubber, 20 parts of butadiene rubber, 15 parts of carbon black N330, and 30 parts of nano talcum powder 1 part, 5 parts of ZnO, 2 parts of stearic acid, 1 part of anti-aging agent RD, 1 part of anti-aging agent 4020, 1.0 part of sulfur, 2 parts of accelerator CZ, and 0.2 part of anti-scorch agent CTP.

[0016] Its preparation method includes two steps of masterbatch and final mixing, masterbatch: sequentially mix 80 parts of natural rubber, 20 parts of butadiene rubber, 15 parts of carbon black N330, 30 parts of nano talcum powder, 5 parts of ZnO, 2 parts of stearic acid, Add 1 part of anti-aging agent RD and 1 part of anti-aging agent 4020 into the GK series internal mixer, keep the filling factor at 70%, discharge the rubber at 150 °C, and the mixing time is 3 minutes; the thickness of the film under ...

Embodiment 2

[0019] A low heat generation, anti-fatigue tire base rubber formula and its preparation method, the components of the formula are calculated in parts by weight: 100 parts of natural rubber, 20 parts of carbon black N330, 20 parts of nano kaolin, 4.5 parts of ZnO, hard 1.9 parts of fatty acid, 1 part of anti-aging agent RD, 1.5 parts of anti-aging agent 4020, 1.5 parts of sulfur, 1.5 parts of accelerator CZ, and 0.4 parts of anti-scorch agent CTP.

[0020] Its preparation method includes two steps of masterbatch and final refining. Masterbatch: 100 parts of natural rubber, 20 parts of carbon black N330, 20 parts of nano-kaolin, 4.5 parts of ZnO, 1.9 parts of stearic acid, 1 part of anti-aging agent RD, anti-aging Add 1.5 parts of agent 4020 to the GK series internal mixer, keep the filling factor at 73%, discharge the rubber at 155°C, and the mixing time is 4 minutes; the thickness of the film under the internal mixer is controlled to be 8mm, and a section of masterbatch is prep...

Embodiment 3

[0023] A low heat generation, anti-fatigue tire base rubber formula and its preparation method, the components of the formula are calculated in parts by weight: 90 parts of natural rubber, 10 parts of butadiene rubber, 25 parts of carbon black N330, 15 parts of nano-mica , 4 parts of ZnO, 2.1 parts of stearic acid, 1.5 parts of anti-aging agent RD, 1.5 parts of anti-aging agent 4020, 1.8 parts of sulfur, 2 parts of accelerator NS, and 0.5 parts of anti-scorch agent CTP.

[0024] Its preparation method includes two steps of masterbatch and final refining. Masterbatch: 90 parts of natural rubber, 10 parts of butadiene rubber, 25 parts of carbon black N330, 15 parts of nano-mica, 4 parts of ZnO, 2.1 parts of stearic acid, anti-aging Add 1.5 parts of anti-aging agent RD and 1.5 parts of anti-aging agent 4020 into the F series internal mixer, keep the filling factor at 75%, discharge the rubber at 160°C, and the mixing time is 2 minutes; the thickness of the film under the internal ...

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Abstract

The invention belongs to the technical field of rubber formulae and in particular relates to a formula of low-heat anti-fatigue base rubber and a preparation method of the formula. The formula of low-heat anti-fatigue base rubber comprises the following components in parts by weight: 80-100 parts of natural rubber, 0-20 parts of cis-polybutadiene, 15-25 parts of carbon black N330, 15-30 parts of nano clay, 4-5 parts of ZnO, 1.9-2.1 parts of citric acid, 2-3 parts of an anti-aging agent, 1.0-1.8 parts of sulfur, 1-2 parts of an accelerant and 0.2-0.5 part of a scorch retarder CTP. Through two procedures of master refining and final refining, mixed rubber of the formula of the low-heat anti-fatigue base rubber can be obtained. By adopting the formula provided by the invention, low heat of the mixed rubber can be maintained, meanwhile, the anti-fatigue damage properties of the base rubber can be improved, and the durability of the rubber can be improved.

Description

technical field [0001] The invention belongs to the technical field of tire formulas, and in particular relates to a low heat generation, anti-fatigue base rubber formula and a preparation method thereof. Background technique [0002] The tire base rubber is located on the upper part of the belt layer at the lower part of the tread, and plays the role of buffering and transmitting stress. When the tire is running at high speed, the dynamic frequency can exceed 10Hz, and the periodic compression deformation requires the base rubber to have low heat generation and good fatigue resistance. In order to achieve the goal of low heat generation, the base rubber formula mainly uses N3 series carbon black as filler, and N3 series carbon black has poor performance in inhibiting crack growth. Contents of the invention [0003] The purpose of the present invention is to solve the problem and provide a low heat generation, anti-fatigue tire base rubber formula and its preparation meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08K13/02C08K3/04C08K3/34C08K3/22C08K5/09B60C1/00
CPCC08L7/00B60C1/0041C08K3/04C08K3/22C08K3/346C08K5/09C08K13/02C08K2003/2296C08K2201/011C08L9/00C08K3/34
Inventor 赵江华周平周丽琰崔玉叶张洪学朱良伟袁时超
Owner JIANGSU GENERAL SCI TECH
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