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Tread rubber filled with environment-friendly white carbon black and butadiene styrene rubber and preparation method of tread rubber

A technology of silica butyl and rubber tread, which is applied in the direction of special tires, tire parts, rolling resistance optimization, etc., can solve the problems of easy agglomeration, bluing, uneven dispersion of silica, etc., to improve wear resistance, High purity, reducing the effect of catalytic oxidation

Inactive Publication Date: 2018-04-13
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that white carbon black is unevenly dispersed in the base rubber during the preparation process of the styrene-butadiene rubber tread rubber, and it is easy to agglomerate and turn blue. Glue and preparation method

Method used

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  • Tread rubber filled with environment-friendly white carbon black and butadiene styrene rubber and preparation method of tread rubber
  • Tread rubber filled with environment-friendly white carbon black and butadiene styrene rubber and preparation method of tread rubber
  • Tread rubber filled with environment-friendly white carbon black and butadiene styrene rubber and preparation method of tread rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method for filling environment-friendly white carbon black styrene-butadiene rubber tread rubber, comprising the steps: wherein each component is by weight percentage

[0028] The modification steps of rice husk source silica are as follows: the mixture of 2.4 parts of silane coupling agent Si-69 and 30 parts of rice husk source silica is placed in a high-speed disperser, and is dispersed and rotated at a high speed of 1300rpm for 1 hour; The dispersed mixture was placed in an oven for 2.5 hours, and the temperature of the oven was set at 140°C;

[0029] (1) One-stage master batching: 30 parts of natural rubber, 70 parts of styrene-butadiene rubber, 20 parts of carbon black, 30 parts of white carbon black, 3 parts of aromatic oil, 2 parts of stearic acid, 4 parts of zinc oxide, 2 parts of viscosity increaser Resin, 2 parts of anti-crack resin, put into the internal mixer for mixing at the same time, the effective filling coefficient of the rubber material ...

Embodiment 2

[0033] A preparation method for filling environment-friendly white carbon black styrene-butadiene rubber tread rubber, comprising the steps: wherein each component is by weight percentage

[0034]The specific modification steps of rice husk source silica are as follows: 1.4 parts of silane coupling agent Si-69 and 35 parts of rice husk source silica mixture are placed in a high-speed disperser, and disperse and rotate at a high speed of 1500 rpm for 1.5 hours; The dispersed mixture was placed in an oven for 2.5 hours, and the temperature of the oven was set at 140°C;

[0035] (1) One-stage master batching: 40 parts of natural rubber, 60 parts of styrene-butadiene rubber, 25 parts of carbon black, 25 parts of white carbon black, 3 parts of aromatic oil, 1.5 parts of stearic acid, 3 parts of zinc oxide, and 1.5 parts of thickening Resin, 1.5 parts of anti-crack resin, put into the internal mixer for mixing at the same time, the effective filling coefficient of the rubber materia...

Embodiment 3

[0039] A preparation method for filling environment-friendly white carbon black styrene-butadiene rubber tread rubber, comprising the steps: wherein each component is by weight percentage

[0040] Rice husk source silica was added directly into the internal mixer without Si-69 modification.

[0041] (1) One-stage master batching: 25 parts of natural rubber, 75 parts of styrene-butadiene rubber, 30 parts of carbon black, 5 parts of white carbon black, 4 parts of aromatic oil, 2.5 parts of stearic acid, 4 parts of zinc oxide, and 2 parts of viscosity increaser Resin, 2 parts of anti-crack resin, put into the internal mixer for mixing at the same time, the effective filling factor of the rubber material is 0.75, the pressure of the top bolt is 5.5Bar, the rotor speed is 50 rpm, and the water temperature of the cooling circuit in the mixing chamber is 40°C, the temperature of the rotor is 35°C, the mixing time is 140 seconds, after the mixing is completed, the glue is discharged. ...

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Abstract

The invention relates to tread rubber filled with environment-friendly white carbon black and butadiene styrene rubber and a preparation method of the tread rubber. The tread rubber comprises the following components in parts by weight: 25-40 parts of natural rubber, 60-75 parts of butadiene styrene rubber, 25-45 parts of carbon black, 15-35 parts of white carbon black, 2-4 parts of aromatic oil,1.5-2.5 parts of stearic acid, 3-4 parts of zinc oxide, 1-2 parts of tackifying resin, 1.5-2 parts of anti-cracking resin, 1.5-2.5 parts of an anti-ager 4010NA, 1.5-2 parts of microcrystalline wax, 1.2-1.5 parts of an accelerator NOBS, 0.3-0.5 part of an accelerator TMTD, 1.5-2 parts of sulfur and 0.1-0.3 part of a scorch retarder. The components are subjected to primary mixing, secondary mixing and final mixing to obtain the tread rubber. The preparation method is simple and easy to operate in step; owing to modified rice-husk-source white carbon black, clustering in basic rubber can be reduced; the machinability and the wear resistance of the tread rubber are improved; rolling resistance of a tire can be effectively reduced; and the wet-skid resistance is improved.

Description

technical field [0001] The invention relates to an environment-friendly filling white carbon black styrene-butadiene rubber tread rubber and a preparation method thereof, belonging to the technical field of tread rubber preparation. Background technique [0002] SBR is a high polymer elastomer obtained by catalytic copolymerization of butadiene and styrene in emulsion or solution, and is an unsaturated hydrocarbon high polymer. The processing performance of styrene-butadiene rubber is slightly lower than that of natural rubber, and its physical and mechanical properties and product performance are close to those of natural rubber. The most important thing is that styrene-butadiene rubber has better wear resistance, wet skid resistance and rolling resistance than natural rubber. , To meet the concept of "green tires", the raw rubber in the tread rubber formula here is a compound system of styrene-butadiene rubber and natural rubber. [0003] In recent years, silica has becom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/06C08L7/00C08L91/06C08K13/06C08K9/06C08K3/36C08K3/04C08K5/09C08K5/40C08K3/22B60C1/00
CPCB60C1/0016C08K2003/2296C08L9/06C08L2201/08C08L2205/035C08L7/00C08L91/06C08K13/06C08K9/06C08K3/36C08K3/04C08K5/09C08K5/40C08K3/22Y02T10/86
Inventor 刘策郑成威王宝鹏
Owner JIANGSU GENERAL SCI TECH
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