One-step sol-gel preparation of hydrophobic antireflective SiO2 coating on poly(methyl methacrylate) substrate

被引：29

作者：

Huang, Xiaoxu ^{[1
]}

Yuan, Ye ^{[1
]}

Liu, Shaozhe ^{[1
]}

Wang, Wei ^{[1
]}

Hong, Ruijiang ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Guangdong Prov Key Lab Photovolta Technol, Inst Solar Energy Syst, Guangzhou 510006, Guangdong, Peoples R China

来源：

MATERIALS LETTERS | 2017年 / 208卷

关键词：

Sol-gel preparation; Thin films; Optical materials and properties; Porous materials; PMMA; SILICA COATINGS; FLY-ASH; EFFICIENT; STABILITY; CATALYST; GREEN; GLASS; FILM;

D O I：

10.1016/j.matlet.2017.05.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A hydrophobic nanoporous antireflective (AR) SiO2 coating was deposited on poly(methyl methacrylate) (PMMA) substrate by sol-gel process. The average transmittance of PMMA substrate with designed SiO2 coating in the region of 400-1100 nm was higher around 6.3% than that of substrates (92.0%). It was noted that a maximum transmittance of 99.9% was achieved at the wavelength of 550 nm. The poly (methyl hydrogen) siloxane (PMHS) was introduced to replace the hydroxyl (-OH) groups and decrease the surface energy of the coating, it increased significantly the hydrophobicity. Consequently, static water contact angle as high as 125.0 +/- 1 degrees was obtained. Cross sectional SEM showed that conformal coating was achieved on PMMA substrate. The hydrophobic AR SiO2 coating exhibited excellent performance on PMMA substrate, showing great application potential in optical devices. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：62 / 64

页数：3

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