摘要
以正硅酸四乙酯(TEOS)为前驱体,γ-(2,3-环氧丙氧)丙基三甲氧基硅烷(GPTMS)为改性剂,在催化剂氨水作用下,采用溶胶-凝胶法制得改性纳米SiO2溶胶,并将其整理到棉织物上构造微观粗糙度,再用十六烷基三甲氧基硅烷(HDTMS)对棉织物进行修饰,以两步法制备超疏水棉织物。结果表明,当TEOS质量分数为3%,GPTMS质量分数为2%,氨水2 m L,反应温度30℃时,可制备出稳定分散的改性纳米SiO2溶胶。整理后棉织物的接触角为150.72°,滚动角为9°,沾水等级5级,实现了超疏水效果,且具有一定的耐洗性。
The modified nano-SiO2 sol is prepared by sol-gel method with tetraethyl orthosilicate （TEOS） as precursor, 3-glycidoxypropyltrimethoxysilane （GPTMS） as modifier and NH3·H2O as catalyst. The su- perhydrophobic cotton fabric is prepared by two-step process. The cotton fabric is firstly treated with modified nano-SiO2 sol to construct rough structure on surface, and then modified by hexadecyltrime- thoxysilane （HDTMS）. The results indicate that the modified nano-SiO2 sol with good dispersion stability is obtained with 3%（omf） of TEOS, 2%（omf） of GPTMS, NH3·H2O 2 mL, and reacting at 30℃. The fin- ished cotton fabric features excellent superhydrophobic with water contact angle of 150.72°, water shed- ding angle of 9° and water repellency of Grade 5.
出处
《印染》
北大核心
2015年第12期17-21,共5页
China Dyeing and Finishing
基金
上海高校青年教师培养资助计划项目(ZZGJD13038)
上海工程技术大学科研启动项目(校启2014-07)
上海工程技术大学大学生创新训练项目(cx1409002)
