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A kind of preparation method of modified white carbon black tread rubber

A technology of white carbon black and tread rubber, which is applied in the field of preparation of modified white carbon black tread rubber, can solve the problems of increased rolling resistance, energy dissipation, poor compatibility of tread rubber, etc. The effect of dispersing stress and dispersing evenly

Active Publication Date: 2020-05-19
CONTINENTAL TIRES (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is that a large amount of white carbon black is often added to the tread rubber in the prior art to improve rolling resistance and wet skid resistance, but the compatibility between white carbon black and non-polar rubber matrix is ​​poor. Poor, and silica is easy to agglomerate to form a filler network, causing energy dissipation, resulting in increased rolling resistance of the tread rubber, and the defects of easy cracking. A preparation method for modified silica tread rubber is provided.

Method used

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  • A kind of preparation method of modified white carbon black tread rubber

Examples

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Effect test

example 1

[0023] Weigh the bagasse and put it into the steam explosion tank, feed saturated steam into the steam explosion tank until the pressure in the steam explosion tank reaches 3.0MPa, keep the pressure and let it stand for 30 minutes, then open the outlet of the steam explosion tank to make the steam explosion tank instantly Release the pressure, collect the ejected blasting sugarcane fiber; mix the blasting sugarcane fiber and the sodium silicate solution with a mass fraction of 20% in a mass ratio of 1:10 to obtain a mixed solution and put it into an ultrasonic oscillator with a concentration of 1mol / L hydrochloric acid to adjust the pH of the mixed solution to 4.0, and react with ultrasonic oscillation at a frequency of 25kHz for 15 minutes to obtain the reactant; put the reactant into a high-temperature reaction kettle, heat up to 100°C, and perform a high-temperature dehydration reaction for 1 hour. Filter and separate to obtain the filter residue, put the filter residue in ...

example 2

[0025]Weigh the bagasse and put it into the steam explosion tank, feed saturated steam into the steam explosion tank until the pressure in the steam explosion tank reaches 3.3MPa, keep the pressure and let stand for 40min, then open the discharge port of the steam explosion tank to make the steam explosion tank instantly Release the pressure, collect the ejected blasting sugarcane fiber; mix the blasting sugarcane fiber and the sodium silicate solution with a mass fraction of 20% in a mass ratio of 1:10 to obtain a mixed solution and put it into an ultrasonic oscillator with a concentration of 1mol / L hydrochloric acid to adjust the pH of the mixed liquid to 4.5, react with ultrasonic oscillation at a frequency of 30kHz for 18min, and obtain the reactant; put the reactant into a high-temperature reaction kettle, heat up to 150°C, and perform a high-temperature dehydration reaction for 1h. Filter and separate to obtain the filter residue, put the filter residue in an oven, and d...

example 3

[0027] Weigh the bagasse and put it into the steam explosion tank, feed saturated steam into the steam explosion tank until the pressure in the steam explosion tank reaches 3.5MPa, keep the pressure and let stand for 50min, then open the outlet of the steam explosion tank to make the steam explosion tank instantly Release the pressure, collect the ejected blasting sugarcane fiber; mix the blasting sugarcane fiber and the sodium silicate solution with a mass fraction of 20% in a mass ratio of 1:10 to obtain a mixed solution and put it into an ultrasonic oscillator with a concentration of 1mol / L hydrochloric acid to adjust the pH of the mixture to 5.0, and react with ultrasonic oscillation at a frequency of 35kHz for 20 minutes to obtain the reactant; put the reactant into a high-temperature reactor, heat up to 200°C, and dehydrate the reaction for 2 hours at high temperature. Filter and separate to obtain the filter residue, put the filter residue in an oven, and dry at 110°C f...

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Abstract

The invention relates to a preparation method for a modified white carbon black tread rubber and belongs to the technical field of preparation of tire materials. The preparation method comprises the following steps: taking bagasse as a raw material; treating bagasse in the manner of steam explosion, thereby acquiring exploded fibers; mixing the exploded fibers with a sodium silicate solution, andthen adding hydrochloric acid for reaction; dehydrating under high temperature after reaction, thereby acquiring filter residue; modifying the filter residue with acetic anhydride, thereby acquiring amodified white carbon black filler; blending the white carbon black filler with other auxiliary materials, thereby acquiring the modified white carbon black tread rubber. The modified white carbon black tread rubber prepared according to the invention has the advantages of low sliding resistance, high cracking resistance and wide application prospect.

Description

technical field [0001] The invention relates to a preparation method of a modified white carbon black tread rubber, which belongs to the technical field of tire material preparation. Background technique [0002] Tires are one of the important parts of the car. During the use of the car, the car tires are related to the safety performance of the car. It is in direct contact with the road surface, and works together with the car suspension to ease the impact of the car while driving, ensuring that the car has good seating comfort and ride comfort. Ensure good adhesion between the wheels and the road surface, and improve the traction, braking and passability of the car. Bearing the weight of the car, the important role played by tires on the car has been paid more and more attention by people. Because tires are often used under complex and harsh conditions, they are subjected to various deformations, loads, forces, and high and low temperature effects during driving, so they...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/06C08L9/00C08L7/00C08K13/06C08K9/04C08K3/36
CPCC08L9/06C08L2205/02C08L2205/035C08L9/00C08L7/00C08K13/06C08K9/08C08K9/04C08K3/36
Inventor 裘友玖林茂梅
Owner CONTINENTAL TIRES (CHINA) CO LTD
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