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Semi-steel meridian tire sidewall rubber composition and preparation method thereof

A technology for sidewall rubber and radial tire is applied in the field of semi-steel radial tire sidewall rubber composition and its preparation, which can solve the problems of tire appearance pollution, discoloration and the like, and achieves excellent ozone resistance, improved vividness, and synchronization of vulcanization time. Effect

Inactive Publication Date: 2017-02-22
山东新大陆橡胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a tire that is different from the prior art, solve the problem of tire appearance pollution and discoloration caused by the migration and precipitation of rubber operating oil on the tire surface in the later stage, and make the tire appearance brighter. It has been significantly improved. In addition, due to the use of liquid isoprene rubber, the tires made are superior to tires made of rubber operating oil in terms of flexural heat generation, tear resistance, cold resistance, and aging resistance.

Method used

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  • Semi-steel meridian tire sidewall rubber composition and preparation method thereof
  • Semi-steel meridian tire sidewall rubber composition and preparation method thereof

Examples

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Effect test

Embodiment 1

[0022] This embodiment relates to a semi-steel radial tire sidewall rubber composition and a preparation method thereof. The raw material components and parts by weight of each component are: 30 parts of SMR20 type natural rubber, 60 parts of BR9000 type butadiene rubber, and 60 parts of LIR-50 type 15 parts of liquid isoprene rubber, 55 parts of N330 carbon black, 3.5 parts of zinc oxide, 2 parts of stearic acid, 2.3 parts of 6PPD type antioxidant, 1.3 parts of RD type antioxidant, 1.8 parts of FYT-502 type protective wax, 40MS type 2 parts of leveling agent, 0.8 parts of TBBS accelerator, 1.72 parts of sulfur.

[0023] This embodiment relates to a semi-steel radial tire sidewall rubber composition and a preparation method thereof, and its specific preparation process includes the following steps:

[0024] (1) Batching and compounding: carry out compounding and compounding according to the raw material components and parts by weight of the rubber composition used for tire sid...

Embodiment 2

[0029] The semi-steel radial tire sidewall rubber composition involved in this embodiment, its raw material components and parts by weight of each component are: 40 parts of SMR20 type natural rubber, 50 parts of BR9000 type butadiene rubber, and LIR-50 type liquid isoprene 10 parts of rubber, 52 parts of N330 carbon black, 3 parts of zinc oxide, 2.2 parts of stearic acid, 2.5 parts of 6PPD type anti-aging agent, 1.5 parts of RD type anti-aging agent, 2.5 parts of FYT-502 type protective wax, 40MS type leveling agent 4 Parts, 0.7 parts of TBBS accelerator, 1.8 parts of sulfur.

[0030] This embodiment relates to a semi-steel radial tire sidewall rubber composition and a preparation method thereof, the specific preparation process of which is the same as that of Embodiment 1.

Embodiment 3

[0032] The semi-steel radial tire sidewall rubber composition involved in this embodiment, its raw material components and parts by weight of each component are: 50 parts of SMR20 type natural rubber, 40 parts of BR9000 type butadiene rubber, and LIR-50 type liquid isoprene 20 parts of rubber, 56 parts of N330 carbon black, 3.2 parts of zinc oxide, 1.8 parts of stearic acid, 2.6 parts of 6PPD type antioxidant, 1.6 parts of RD type antioxidant, 2 parts of FYT-502 type protective wax, 3 parts of 40MS type leveling agent Parts, 1.0 parts of TBBS accelerator, 1.76 parts of sulfur.

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Abstract

The invention belongs to the technical field of rubber tires and chemical engineering manufacturing, and concretely relates to a liquid isoprene rubber-containing semi-steel meridian tire sidewall rubber composition and a preparation method thereof. The tire sidewall rubber composition comprises, by weight, 30-50 parts of natural rubber, 40-60 parts of butadiene rubber, 10-20 parts of liquid isoprene rubber, 52-56 parts of carbon black, 4.6-5.7 parts of an activator, 3.7-4.2 parts of an antioxidant, 1.8-2.5 parts of protection wax, 2-4 parts of a homogenizing agent, 0.7-1.0 part of a promoter and 1.76-1.8 parts of sulfur. The liquid isoprene rubber is used in semi-steel tire sidewalls, and rubber processing oil in traditional formulas is eliminated, so the problems of visual pollution and color change of tires, caused by migration and precipitation of the rubber processing oil from the surfaces of the tires in the late stage are solved, thereby the visual brightness of the tires is improved; and the use of the liquid isoprene rubber makes produced tires be better than tires produced by using the rubber processing oil in tire sidewall deflection heating reduction, tear resistance, cold resistance and ageing resistance.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of rubber tires and chemical manufacturing, and in particular relates to a rubber composition using liquid isoprene rubber for the sidewall of a semi-steel radial tire and a preparation method thereof. [0003] Background technique: [0004] Rubber operating oil is added to the traditional formula to improve the properties of rubber such as elasticity, flexibility, ease of processing, and ease of mixing. However, in the later stage, the rubber operating oil will migrate and precipitate on the surface of the tire, resulting in contamination and discoloration of the tire appearance. The vividness is reduced, and the aromatic hydrocarbon oil used in the rubber operation oil is carcinogenic, which seriously damages people's health. [0005] Canceling the rubber process oil in the traditional formula and adding liquid isoprene rubber to the raw materials can improve the appearance pollution and discolorati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L7/00C08L91/00C08K13/02C08K3/04C08K3/22C08K5/09C08K5/18B60C1/00B29B7/28
CPCC08L9/00B29B7/283B29B7/286B60C1/0025C08L7/00C08L2201/08C08L2205/025C08L2205/035C08K13/02C08K3/04C08K2003/2296C08K5/09C08K5/18C08L91/00
Inventor 陆中勇刘奇王成杰
Owner 山东新大陆橡胶科技有限公司
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