A kind of anti-crack mountain tire tread rubber and preparation method thereof

A tread rubber and mountain technology, which is applied in the field of mountain tire tread rubber and its preparation, achieves the effects of good compatibility, improved wear resistance and increased elongation

Active Publication Date: 2017-08-25
ZHAOQING JUNHONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The automobile tire tread rubber of the invention is especially suitable for use under poor road conditions and high speed conditions during the construction process. The tread rubber has certain resistance to cutting, puncture, crack expansion and tearing off blocks. Performance, but its application in mountain tires, its wear resistance and tear resistance needs to be further improved

Method used

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  • A kind of anti-crack mountain tire tread rubber and preparation method thereof
  • A kind of anti-crack mountain tire tread rubber and preparation method thereof
  • A kind of anti-crack mountain tire tread rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] An anti-crack mountain tire tread rubber, comprising the following components in parts by weight:

[0035]

[0036]

[0037] Among them, the natural rubber is 20# standard natural rubber;

[0038] Sulfur content in sulfur ≥ 95wt%;

[0039] The anti-aging agent is N-phenyl-α-aniline and anti-aging agent 4020, and the weight ratio of the two is 1:2.

[0040] The tear-resistant resin is HR-801 aliphatic hydrocarbon resin.

[0041] The density of the tread rubber prepared in this embodiment is 1.090kg / dm 3 .

[0042] According to the proportioning of above-mentioned tread rubber, make following preparation:

[0043] a. master refining

[0044] a1. Take solution-polystyrene-butadiene rubber, natural rubber, butadiene rubber, zinc oxide, stearic acid, anti-aging agent, protective wax, tear-resistant resin, white carbon black and silane coupling agent and add them to the internal mixer for mixing, Mixing for 1-2min;

[0045] a2. Add carbon black and softener, and ...

Embodiment 2

[0053] An anti-crack mountain tire tread rubber, comprising the following components in parts by weight:

[0054]

[0055] Among them, the natural rubber is 20# standard natural rubber;

[0056] Sulfur content in sulfur ≥ 95wt%;

[0057] Antiaging agent is N-phenyl-α-aniline.

[0058] The tear-resistant resin is AP-260, and its main body is hydrocarbon resin with functional groups.

[0059] The density of the tread rubber prepared in this embodiment is 1.093 / dm 3 .

[0060] According to the proportioning of above-mentioned tread rubber, make following preparation:

[0061] a. master refining

[0062] a1. Take solution-polystyrene-butadiene rubber, natural rubber, butadiene rubber, zinc oxide, stearic acid, anti-aging agent, protective wax, tear-resistant resin, white carbon black and silane coupling agent and add them to the internal mixer for mixing, Mixing for 1-2min;

[0063] a2. Add carbon black and softener, and mix for 2-3 minutes;

[0064] a3. Tablet pressing...

Embodiment 3

[0071] An anti-crack mountain tire tread rubber, comprising the following components in parts by weight:

[0072]

[0073] Among them, the natural rubber is 20# standard natural rubber;

[0074] Sulfur content in sulfur ≥ 95wt%;

[0075] The anti-aging agent is N-phenyl-N'-isopropyl-p-phenylenediamine.

[0076] The tear-resistant resin is HR-801 aliphatic hydrocarbon resin and the main body of AP-260 is hydrocarbon resin with functional groups.

[0077] The density of the tread rubber prepared in this embodiment is 1.087kg / dm 3 .

[0078] According to the proportioning of above-mentioned tread rubber, make following preparation:

[0079] a. master refining

[0080] a1. Take solution polystyrene butadiene rubber, natural rubber, butadiene rubber, zinc oxide, stearic acid, anti-aging agent, protective wax, tear-resistant resin, white carbon black and silane coupling agent and add them to the internal mixer for mixing, Mixing for 1-2min;

[0081] a2. Add carbon black an...

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Abstract

The invention belongs to the technical field of tire manufacturing and particularly relates to crack-proof mountain tread rubber. The crack-proof mountain tread rubber is prepared from, by weight, 10-35 parts of solution polymerized butadiene styrene rubber, 45-100 parts of natural rubber, 10-15 parts of butadiene rubber, 2-8 parts of zinc oxide, 1-5 parts of stearic acid, 1-5 parts of an antiager, 2-5 parts of protective wax, 2-10 parts of anti-tear resin, 2-10 parts of a softener, 6-12 parts of white carbon black, 35-65 parts of carbon black, 0.6-1.2 parts of a silane coupling agent, 2-7 parts of sulfur and 3.0-12.5 parts of an accelerant. By the formulation, high plasticity and compatibility in a rubber processing process can be realized, uniform dispersion of fillers in rubber is facilitated, rubber extrusion process conditions and rubber fluidity are improved, and the rubber is smooth and flat in surface, excellent in adhesion performance and less prone to scorching after extrusion. Furthermore, abrasion resistance, tensile strength and stress at definite elongation of the rubber can be improved remarkably, and especially tear resistance is improved greatly; elongation of vulcanized rubber is increased, and accordingly the defect of cracks of the mountain tread rubber can be improved.

Description

technical field [0001] The invention belongs to the technical field of tire manufacturing, and in particular relates to a crack-resistant mountain tire tread rubber and a preparation method thereof. Background technique [0002] In recent years, with the improvement of living standards of urban residents, more and more people own private cars. As a very challenging and adventurous sport, auto cross-country is becoming more and more popular among the people, and mountain tires are becoming more and more popular among people. Since most of the roads on which off-road vehicles drive are muddy, gravel roads, and uneven uneven roads, the performance requirements for mountain tire treads are also relatively high, with excellent skid resistance, tear resistance, and cut resistance. performance, wear resistance. [0003] Existing mountain tires are found to have cracks in the tread after exercising on relatively bad road surfaces for a period of time. The reason is analyzed that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L9/06C08L9/00C08K13/02C08K3/22C08K5/09C08K3/36C08K3/06B60C1/00
CPCB60C1/0016C08L7/00C08L2205/02C08L2205/035C08L9/06C08L9/00C08K13/02C08K2003/2296C08K5/09C08K3/36C08K3/06
Inventor 林丛海张碧俊丁金刚吉年康覃进明
Owner ZHAOQING JUNHONG CO LTD
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