Characterization of silica particles modified with γ-methacryloxypropyltrimethoxysilane

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• 作者：Jun Jiang ; Wang Wang ; Haiying Shen ; Jiamin Wang ; Jinzhen Cao ; ^{caoj@bjfu.edu.cn}
• 关键词：Silica particles ; Silane ; Surface modification ; Hydroxyl groups ; Hydrophobicity ; Hygroscopicity
• 刊名：Applied Surface Science
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：397
• 期：Complete
• 页码：104-111
• 全文大小：2351 K
• 卷排序：397

文摘

The −OH groups surface density and relative content of ɤ-methacryloxypropyltrimethoxysilane (MPTS) modified silica were calculated. The hydrophobicity and hygroscopicity were highly correlated with the −OH groups. MPTS self-condensation started from 4%, and became more obvious at 8%. Equilibrium Moisture Content (EMC) of modified silica was affected by self-condensation and special surface area. We proposed a mechanism concerning the MPTS modification of silica.