A gradient composite rare earth modified aluminum alloy anodized cookware with double-layer active hydrophobic and hydrophobic self-enhancing self-repairing characteristics and a preparation method thereof

By using rare earth modified aluminum alloy matrix with SiO2 and SiC gradient composite film formation and stearic acid sealing technology, the problems of poor non-stick effect, easy cracking and heavy metal pollution of aluminum alloy cookware have been solved, realizing a green kitchenware solution with high hardness, wear resistance, high temperature resistance, hydrophobic self-healing and low aluminum precipitation.

CN122406338APending Publication Date: 2026-07-17马小雯

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
马小雯
Filing Date
2026-06-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing aluminum alloy cookware suffers from poor non-stick properties, insufficient wear resistance, easy cracking, heavy metal contamination, and aluminum leaching, making it difficult to achieve a comprehensive effect of no chemical coating, no heavy metals, superhydrophobic, high hardness and wear resistance, high temperature resistance, and hydrophobic self-healing.

Method used

Using a rare earth modified aluminum alloy matrix, a double-layer gradient composite film of SiO2 and SiC particles is formed, combined with high-temperature melting chemical bonding of stearic acid to seal the pores, thus forming a gradient composite rare earth modified aluminum alloy anodized cookware with active hydrophobicity and hydrophobic self-reinforcing and self-healing properties, achieving integrated treatment of the inner and outer surfaces.

Benefits of technology

It achieves comprehensive performance with high safety, high temperature resistance, wear resistance, long-lasting superhydrophobicity, and green environmental protection, which improves the service life and health safety of cookware, reduces the risk of aluminum leaching, and meets the requirements of green manufacturing.

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Abstract

本发明公开了一种具备双层主动疏水与疏水自增强自修复特性的梯度复合稀土改性铝合金阳极氧化锅具及其制备方法,属于厨具新材料与电化学改性技术领域。本发明采用稀土改性铝合金为基材,通过电解液分阶段添加纳米二氧化硅与碳化硅原位生成梯度复合硬质阳极氧化膜,解决膜层应力开裂与耐磨不足缺陷。本发明采用高温熔融纯硬脂酸封孔,构建“物理结构疏水、化学键合疏水与烹饪自修复疏水”三层保障机制,摒弃氟系涂层与重金属封孔,实现超低铝析出与长效不粘,解决了传统锅具不粘与健康、导热难以兼得的问题,工艺环保,具备推广价值。
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