Durable anti-fog micro-nano structures fabricated by laser ablation of aluminum film on resin/glass

被引:6
|
作者
Cui, Hongtao [1 ]
Teng, Chao [1 ]
Xie, Xinyi [1 ]
Qi, Xiaowen [1 ]
机构
[1] Qingdao Univ Technol, Sch Civil Engn, Dept Mat Sci, Qingdao 266520, Peoples R China
关键词
Superhydrophilic; Antifog; Laser ablation; Micro-nano structures; Durability; SURFACE; GLASS; TRANSMITTANCE; DESIGN; WATER;
D O I
10.1186/s11671-024-03993-y
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
This study presents a technique for processing transparent glass and resin substrates using a low-cost laser marker to create a micro-nano-structured surface with exceptional anti-fog properties. The approach involved depositing an aluminum (Al) film on the transparent substrates as an absorbing layer, followed by rapid laser marker ablation. This ablation process effectively removed the majority of the Al film, resulting in the formation of hierarchical hillock-hollow micro-structures and the dispersion of Al-based nano-particles throughout the surface. The resulting structure on resin glasses demonstrated anti-fog performance even after 629 days storage in the laboratory, which marked the longest antifog record. It exhibited impressive antifog property without visible degradation for the first 9 months, which though degraded substantially afterwards. Furthermore, the micro-nano structure played a key role in reducing the contact angle of the surface. The contact angle experienced a significant reduction from a value of 64 degrees for the control resin to 6.9 degrees for the treated resin, while it was reduced from 44 degrees for the control glass to 0 degrees for the treated glass, indicating superhydrophilicity. This 0 degrees superhydrophilic state persisted for a period of 25 days.
引用
收藏
页数:14
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