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Specially-made low-heat-generation rubber and preparation method thereof

A low heat generation and rubber technology, applied in the field of rubber, can solve the problems of low heat generation, tire strength, insufficient heat generation, etc., and achieve the effects of improved service life, permanent deformation, good tensile strength and high tensile strength

Active Publication Date: 2021-04-16
河北正固橡胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention proposes a special low-heat-generating rubber and its preparation method, which solves the problems of insufficient strength and heat-generating tires in the prior art. The rubber has high strength and low heat-generating, and can be used to prepare tires Sidewall rubber

Method used

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  • Specially-made low-heat-generation rubber and preparation method thereof
  • Specially-made low-heat-generation rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The components of the rubber are shown in Table 1. The accelerator includes tetramethylthiuram disulfide, di-o-tolylguanidine, and phenformin with a weight ratio of 1:0.5:0.5; the chemical antioxidant is 4010Na with a mass ratio of 1:2. , 4020; the physical anti-aging agent is polyethylene wax and microcrystalline wax with a mass ratio of 2:1; the anti-scorch agent is PVI; the curing agent is HMT.

[0029] The preparation method of the above-mentioned special low heat generation rubber comprises the following steps:

[0030] A. Prepare materials according to Table 1;

[0031] B. Plasticizing natural rubber, butadiene rubber BR9000 and styrene-butadiene rubber in an internal mixer to make a plasticizing film;

[0032] C, adding carbon black, white carbon black, zinc oxide, stearic acid, chemical anti-aging agent, physical anti-aging agent, coupling agent, reinforcing resin, curing agent, anti-scorch agent to the plasticized film obtained in step B, Mix in the mixer for...

Embodiment 2

[0035] The components of the rubber are shown in Table 1. The accelerator includes tetramethylthiuram disulfide, di-o-tolylguanidine, and phenformin with a weight ratio of 1:1.3:1; the chemical antioxidant is BLE with a weight ratio of 2:1. , RD; the physical anti-aging agent is microcrystalline wax and paraffin wax with a mass ratio of 1:1; the anti-scorch agent is CTP; the curing agent is HMMM;

Embodiment 3

[0037] The components of the rubber are shown in Table 1. The accelerator includes tetramethylthiuram disulfide, di-o-tolylguanidine, and phenformin with a weight ratio of 1:0.8:0.5; the chemical anti-aging agent is BLE; the physical anti-aging agent is microcrystalline Wax; the anti-scorch agent is CTP; the curing agent is HMT; the preparation method of the special low heat generation rubber is the same as in Example 1.

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Abstract

The invention belongs to the technical field of rubber, and provides special low-heat-generation rubber which comprises the following components in parts by mass: 50-80 parts of natural rubber, 10-25 parts of butadiene rubber BR9000 and 10-25 parts of butadiene styrene rubber, totaling 100 parts; 5-8 parts of zinc oxide, 2-3 parts of stearic acid, 3-5 parts of a chemical anti-aging agent, 1-2 parts of a physical anti-aging agent, 35-50 parts of carbon black, 15-30 parts of white carbon black, 1.5-3 parts of a coupling agent, 3.5-5 parts of a vulcanizing agent, 3.5-6 parts of reinforcing resin, 0.35-1.6 parts of a curing agent, 1.4-1.8 parts of an accelerant and 0.15-0.3 part of a scorch retarder. The accelerant is prepared from tetramethylthiuram disulfide, di-o-tolylguanidine and phenformin according to the weight ratio of 1 to (0.5-1.3) to (0.5-1). Through the technical scheme, the problem of insufficient tire performance in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of rubber and relates to a special low heat generation rubber and a preparation method thereof. Background technique [0002] It is well known that rubber hollow air-free tires and solid tires can only be applied to low-speed tires. With the rise of electric bicycles, rubber hollow tires are more and more applied to electric bicycles due to their maintenance-free and non-puncture characteristics, but their shortcomings are also Exposure, 1. Large heat generation, causing internal heartburn and early damage to the tire. 2. After the rubber carcass heats up, the carcass becomes soft and hard, and the carcass will sink and increase, which greatly reduces the cruising range of the vehicle. 3. The riding comfort is not good. With the development of the automobile industry and the transportation industry, people have higher and higher requirements for the performance of automobile tires. On the premise of ensurin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L9/00C08L9/06C08K13/04C08K5/40C08K5/31C08K7/26C08K5/09B60C1/00
Inventor 陈建锐
Owner 河北正固橡胶科技有限公司
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