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Tread rubber with low content of anti-aging agent and preparation method thereof

An anti-aging agent and tread rubber technology, used in special tires, tire parts, transportation and packaging, etc. problems, to achieve the effect of improving passability and safety, and low wear

Active Publication Date: 2022-02-11
SICHUAN YUANXING RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems caused by the current anti-aging system of tire tread rubber, such as poor protection effect, easy discoloration and pollution, poor tire appearance, poor tread grip, wear and rolling resistance, etc., the present invention develops a tread rubber formula, which is It can ensure the aging resistance of the tread rubber, and can also improve the problems of easy discoloration and pollution of the tire, and at the same time ensure that the tread has good grip wear and rolling resistance performance

Method used

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  • Tread rubber with low content of anti-aging agent and preparation method thereof
  • Tread rubber with low content of anti-aging agent and preparation method thereof
  • Tread rubber with low content of anti-aging agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Low styrene emulsion polystyrene butadiene rubber SBR1502: 30 parts, high styrene emulsion polystyrene butadiene rubber SBR1739: 55 parts, brominated butyl 3745: 15 parts, medium and low specific surface area white carbon black HD1115MP: 50 parts, low sulfur silane Coupling agent NXT363: 3 parts, super wear-resistant carbon black N234: 30 parts, 8 parts of environmentally friendly aromatic oil, 3 parts of zinc oxide, 1.5 parts of stearic acid, 5 parts of phenolic resin, sulfur 99 (1% oil-extended): 1.5 1.8 parts of accelerator CBS, 0.15 parts of accelerator TS, and 1.45 parts of accelerator D.

[0035] Put all the rubber into the F370 internal mixer, use the speed of 55RPM to mix for 20 seconds, lift the top bolt, and put all the weighed additives except sulfur and accelerator into the internal mixer through the feeding door and packing delivery pipe, respectively. When the temperature rises to 120°C (considering the temperature rise of the equipment, it is set to start...

Embodiment 2

[0038] Low styrene emulsion polystyrene butadiene rubber SBR1502: 40 parts, high styrene emulsion polystyrene butadiene rubber SBR1739: 40 parts, brominated butyl 3745: 20 parts, medium and low specific surface area white carbon black HD1115MP 50 parts, low sulfur silane Joint agent NXT363: 4.4 parts, super wear-resistant carbon black N234: 20 parts, environmentally friendly aromatic oil 10 parts, zinc oxide 3 parts, stearic acid 1.5 parts, phenolic resin ST1101: 5 parts, sulfur 99 (1% oil-extended): 1.6 parts, p-phenylenediamine antioxidant 0.5 parts, protective wax 0.5 parts, accelerator CBS: 1.8 parts, accelerator TS: 0.15 parts, accelerator D: 1.45 parts.

[0039] Put all the rubber into the F370 internal mixer, use the speed of 55RPM to mix for 20 seconds, lift the top bolt, and put all the weighed additives except sulfur and accelerator into the internal mixer through the feeding door and packing delivery pipe, respectively. When the temperature rises to 120°C (consideri...

Embodiment 3

[0042] Low styrene emulsion polystyrene butadiene rubber SBR1502: 30 parts, high styrene emulsion polystyrene butadiene rubber SBR1739: 60 parts, brominated butyl 3745: 10 parts, medium and low specific surface area white carbon black HD1115MP 50 parts, low sulfur silane Joint agent NXT363: 4.4 parts, super wear-resistant carbon black N234: 25 parts, environmentally friendly aromatic oil 10 parts, zinc oxide 3 parts, stearic acid 1.5 parts, phenolic resin ST1101: 5 parts, sulfur 99 (1% oil-extended): 1.7 parts, p-phenylenediamine antioxidant 1.0 parts, protective wax 1.0 parts, accelerator CBS: 1.8 parts, accelerator TS: 0.15 parts, accelerator D: 1.45 parts.

[0043] Put all the rubber into the F370 internal mixer, use the speed of 55RPM to mix for 20 seconds, lift the top bolt, and put all the weighed additives except sulfur and accelerator into the internal mixer through the feeding door and packing delivery pipe for mixing. When the temperature rises to 120°C (considering ...

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Abstract

The invention discloses tread rubber with low content of an anti-aging agent and a preparation method thereof. The tread rubber is prepared from the following main raw materials: low-styrene emulsion polymerized styrene-butadiene rubber, high-styrene emulsion polymerized styrene-butadiene rubber, brominated butyl 3745, white carbon black with medium-low specific surface area, a low-sulfur silane coupling agent, super wear-resistant carbon black, a softening agent, zinc oxide, stearic acid, resin, sulfur and an accelerant. According to the invention, the anti-aging agent and protective wax are used or not used, an internal mixer and an open mill are used for linkage operation, a mixing technique of internal mixer operation is adopted, a high rotating speed is adopted firstly, and then a low rotating speed is adopted, so the tire is good in wear resistance, free of cracks in dynamic ozone aging performance for 72 hours, free of abnormity in a flex test for 2 million times and free of blooming, and the wear-resistant mileage of the tire is 80000 km.

Description

technical field [0001] The present invention relates to the formula of tire tread rubber, more specifically, the present invention relates to a kind of low anti-aging agent and has high grip, wear resistance, low rolling resistance, aging resistance, less environmental pollution, good appearance tire tread rubber and its preparation method. Background technique [0002] Rubber aging refers to the continuous decline in the performance of raw rubber or rubber products due to heat, oxygen, stress and strain during storage, processing and use. [0003] In order to delay aging, the protective methods commonly used in the market include physical protection and chemical protection. The protective method commonly used in physical protection uses protective wax. Although protective wax at different operating temperatures can solve the problem of ozone resistance and reduce spraying of rubber under different operating conditions Frost problem, but can not completely solve the problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L23/28C08K7/26C08K3/04C08K3/22C08K5/09C08K3/06B60C1/00
CPCC08L9/06B60C1/0016C08K2003/2296C08L23/283C08K7/26C08K3/04C08K3/22C08K5/09C08K3/06Y02T10/86
Inventor 温德林吕荣福黄文燕陈有龙
Owner SICHUAN YUANXING RUBBER
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