一种抗氧化改性碳石墨材料及其制备方法
By combining medium-temperature pitch, modified silica sol, and core-shell particles, a dense glassy carbon structure and an aluminosilicate ceramic phase are formed, which solves the problem of poor oxidation resistance of artificial graphite at high temperatures and improves the high-temperature stability and mechanical properties of the material.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INNER MONGOLIA PLANETARY NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-12-17
- Publication Date
- 2026-07-17
AI Technical Summary
Artificial graphite has poor oxidation resistance in high-temperature and oxygen-rich environments. In existing technologies, the viscosity of nano-silica coatings decreases at high temperatures and the material's plastic deformation capacity is insufficient, leading to easy cracking.
A combination of medium-temperature asphalt, modified silica sol, and artificial graphite powder is used. Through heat treatment and molding, a dense glassy carbon structure is formed by combining the catalytic effect of aluminum dihydrogen phosphate and boric acid aqueous solution. Core-shell particles are added to enhance the material's oxidation resistance and mechanical properties.
It improves the oxidation resistance and mechanical properties of carbon graphite materials, and enhances the material's resistance to crack propagation and high-temperature stability.
Smart Images
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