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Position: Home > Articles > Super-hydrophobic Preparation for Bamboo by Sol-gel Progress Journal of Northeast Forestry University 2015 (2) 84-86+97

溶胶凝胶法制备超疏水竹材

作  者:
田根林;马欣欣;吕黄飞;杨淑敏;刘杏娥
单  位:
国际竹藤中心
关键词:
竹材;超疏水;溶胶凝胶法;接触角
摘  要:
通过溶胶凝胶法,赋予竹材超疏水特性,以拓宽竹材的应用范围。以正硅酸乙酯(TEOS)为前驱体,氨水为催化剂,制备硅溶胶浸渍液,选用十六烷基三甲氧基硅烷(HDTMS)的乙醇水解液对浸渍处理后的竹材表面进行修饰,制备超疏水竹材表面。结果表明,处理后竹材表面形成直径大小为50~100 nm的颗粒状薄膜;竹材横截面接触角达到154°,具备了超疏水表面特性;改性后疏水效果随HDTMS质量分数增加而提高,当HDTMS质量分数为5%时,疏水效果达到最佳,之后随HDTMS质量分数增加有减小趋势。
译  名:
Super-hydrophobic Preparation for Bamboo by Sol-gel Progress
作  者:
Tian Genlin;Ma Xinxin;Lü Huangfei;Yang Shu-min;Liu Xing'e;International Center for Bamboo and Rattan;
关键词:
Bamboo;;Super-hydrophobicity;;Sol-gel;;Contact angle
摘  要:
We studied the preparation of superhydrophobic bamboo by a two-step sol-gel process consisting of growing nonofilms on the surface of bamboo with silica sol followed by hydrophobization with hydrolyzed exadecyltrimethoxysilane( HDTMS).The spherical nanoparticles were deposited uniformly on the bamboo surface. The maximum water contact angle of superhydrophobic coating bamboo surface was 154°. Water repellency had a relation with concentration of alky HDTMS additive in silica sol.

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