Fabrication of biomimetic high performance antireflective and antifogging film by spin-coating

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• 作者：Liang Zhang^a ; Changli Lü ; ^b ; Yunfeng Li^a ; Zhe Lin^a ; Zhanhua Wang^a ; Heping Dong^c ; Tieqiang Wang^a ; Xuemin Zhang^a ; Xiao Li^a ; Junhu Zhang^a ; Bai Yang^a ; ^{byangchem@jlu.edu.cn} ; ^{yangoffice@jlu.edu.cn} ; ^{yangbai@jlu.edu.cn}
• 关键词：Biomimetic ; Mesoporous ; Antireflective ; Antifogging ; Mechanical stability
• 刊名：Journal of Colloid and Interface Science
• 出版年：2012
• 出版时间：15 May, 2012
• 年：2012
• 卷：374
• 期：1
• 页码：89-95
• 全文大小：1478 K

文摘

In this paper, we report a facile way to fabricate biomimetic high performance optical hybrid films with excellent antireflective and antifogging properties by one-step spin-coating the mixture of mesoporous SiO₂ particles and SiO₂ sol. The production process of the films is easy, low-cost, and time-efficient. Mesoporous SiO₂ particles containing surfactants disperse in SiO₂ sol stably without any chemical modification, which decrease the effective refractive index and increase the transmittance of the films. In addition, such films possess superhydrophilic properties and exhibit high performance antifogging properties. Due to the good film forming performance of SiO₂ sol, mesoporous SiO₂ particles are embedded in the films and impart the films high mechanical stability and durability. The surface morphology of the films can maintain well after repeated friction, and the performances of antireflective and antifogging also do not change as well.