一种铝电解用阴极材料及其制备方法
By preparing a composite coating of TiB2, fluorinated graphene, CNT and epoxy resin on the substrate material, the problem of poor adhesion strength between the TiB2 coating and the substrate was solved, the impact resistance and corrosion resistance of the cathode material were improved, and good wettability of molten aluminum was maintained.
CN118932429BActive Publication Date: 2026-07-17YUNNAN YUANXIN CARBON CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YUNNAN YUANXIN CARBON CO LTD
- Filing Date
- 2024-08-01
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The existing TiB2 coating has poor adhesion strength to the substrate material, resulting in insufficient impact resistance and corrosion resistance of the cathode material.
Method used
A composite coating consisting of TiB2, fluorinated graphene, CNT, epoxy resin, and diluent is used. The substrate material is treated with silane reagents and dopamine to enhance the bonding strength between the coating and the substrate. The performance of the coating is optimized by controlling the heating process.
Benefits of technology
It improves the bonding strength between the coating and the substrate material, enhances the impact resistance and corrosion resistance of the cathode material, and maintains good wettability of molten aluminum.
✦ Generated by Eureka AI based on patent content.
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Abstract
本发明涉及电解铝技术领域，公开了一种铝电解用阴极材料及其制备方法，包括如下步骤：将基体材料经预处理后，在其表面依次设置过渡层和涂覆层；涂覆层的原料各组分包括TiB2、氟化石墨烯、CNT、环氧树脂、稀释剂。本发明提供的铝电解用阴极材料，TiB2、氟化石墨烯、CNT、环氧树脂、稀释剂为原料制备得到的涂覆液，将其涂覆于基体表面，不仅使得其能够有与铝液润湿性佳的优势，而且也能够很好的抵抗高温熔体侵蚀。同时，氟化石墨烯不仅有着优异的力学性能，同时具有耐腐蚀的特性。加入CNT，CNT能够与氟化石墨烯一同提升涂层的机械性能，以及CNT进行镀铜处理，能够避免CNT与Al反应形成Al4C3，从而避免涂层脱落。
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