SiO2溶胶/蜡乳液对棉织物的超疏水改性整理  

Superhydrophobic Cotton Fabric Modified by SiO2 Sol/Wax Emulsion

作　　者：郑果林 郑创 张丹[1,2] Guolin Zheng;Chuang Zheng;Dan Zhang(Key Laboratory of Eco-Textile Ministry of Education,Jiangnan University,Wuxi 214122,China;State Key Laboratory of Molecular Engineering of Polymers (Fudan University),Shanghai 200433,China)

机构地区：[1]江南大学生态纺织教育部重点实验室,江苏无锡214122 [2]聚合物分子工程国家重点实验室(复旦大学),上海200433

出　　处：《高分子材料科学与工程》2019年第7期18-24,共7页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(31600478);江苏省自然科学基金资助项目(BK20140145);中央高校基本科研业务费专项资金(重点项目JUSRP51718A);江苏高校优势学科建设工程项目(苏政办发[2014]37);聚合物分子工程国家重点实验室(复旦大学)开放研究课题(K2018-22)

摘　　要：通过乳化的方法制备得到了稳定性良好的棕榈蜡乳液,同时采用溶胶凝胶法以辛基三乙氧基硅烷为前驱体,制得改性SiO2溶胶。随后采用两步法对棉织物表面进行改性,首先用改性SiO2溶胶整理,然后用棕榈蜡乳液与石蜡乳液的复配乳液继续整理。经测试表明,棉织物的水接触角高达166.2°,经过5次水洗和50次摩擦后,棉织物仍具有良好的疏水性能。超疏水棉织物的白度由初始的85.5%降至72.2%,透气性由初始的177.9 mms^-1降至137.2 mms^-1,但几乎不影响其服用性能。其经向强力由初始的605 N提高至634 N,纬向断裂强力由初始的302 N提高至326 N。最后对棉织物的表面形貌、性能变化及超疏水机理进行了深入的探讨。The modified SiO2 sol was prepared by the sol-gel method using octyltriethoxysilane as precursor and using the emulsification method to obtain the palm wax emulsion with good stability.Subsequently,the surface of the cotton fabric was modified,that is,the cotton fabric was firstly finished with the modified SiO2 sol,and then the cotton fabric was finished with the mixed emulsion,which was composed of palm wax emulsion and paraffin emulsion.Tests show that the water contact angle of the super-hydrophobic cotton fabric is as high as 166.2°and the cotton fabric still has good hydrophobic properties after 5 times of washing and 50 times of friction.The whiteness of the super-hydrophobic cotton fabrics decreases from the initial 85.5%to 72.2%,and the breathability decreases from the initial 177.9 mms^-1 to 137.2 mms^-1,but does not affect its performance.The warp breaking strength is increased from the initial 605 N to 634 N and the weft breaking strength is increased from the initial 302 N to 326 N.The surface morphology,performance changed and superhydrophobic mechanism of cotton fabrics were investigated.

关 键 词：超疏水棉织物 棕榈蜡乳液 改性SiO2 乳化 

分 类 号：TS195.1[轻工技术与工程—纺织化学与染整工程]