A method for coating modification of kaolin for use in rubber production
CN122167824APending Publication Date: 2026-06-09BEIJING RES & DESIGN INST OF RUBBER IND
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BEIJING RES & DESIGN INST OF RUBBER IND
- Filing Date
- 2024-12-09
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Existing kaolin modification methods in rubber production suffer from poor modification effects, high costs, and difficulty in uniformly coating the modifier, thus affecting the improvement of rubber performance.
Method used
A variable temperature control method was adopted, in which stearic acid and kaolin were added to a stirrer at 75°C and stirred, and then the temperature was lowered to 45°C and kept at that temperature to ensure that the stearic acid and kaolin react fully to form covalent bonds and uniformly coat the surface of the kaolin.
Benefits of technology
This method achieves good dispersion of modified kaolin in rubber, significantly improves the performance of the rubber compound, reduces costs, and avoids the clumping of the modifier.
✦ Generated by Eureka AI based on patent content.
Abstract
The application discloses a kaolin coating modification method which can be used for rubber production, and the method uses stearic acid as a modification material and kaolin as a core material to prepare an outer layer coating of stearic acid on the kaolin by using a variable temperature control method. The method is simple in process and low in cost, and the obtained modified product can be well dispersed in rubber and can significantly improve the performance of the rubber.
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