Ultra-fast surface hydrophobic modification of sol-gel silica antireflective coating with enhanced abrasion-resistance

作者：Zhang Xinxiang; Xia Bibo; Ding Bin; Zhang Yulu; Luo Jianhui; Jiang Bo^*

来源：Materials Letters, 2013, 104: 31-33.

DOI：10.1016/j.matlet.2013.04.016

• Sol-gel preparation
• Thin film
• Surface
• Hydrophobicity
• Poly(methylhydrogen)siloxane

A novel and ultra-fast route was proposed to modify the surface hydrophobicity of sol-gel silica antireflective (AR) coating with poly(methylhydrogen)siloxane (PMHS). The hydroxyl groups on silica particle are thought to react with the hydrogen atoms within several seconds at room temperature in the presence of platinum catalyst. The surface modification can be accomplished simply by immerging silica AR coating into the PMHS/hexane solution containing platinum catalyst and then withdrawing immediately from the solution. The hydrophobicity and abrasion-resistance of PMHS modified AR coating were significantly improved. This provides a new method for the preparation of abrasion-resistant sol-gel silica AR coating used in outdoor environment.

• 出版日期2013-8-1
• 单位四川大学; 中国石油天然气股份有限公司勘探开发研究院