硅水溶胶法棉织物无氟超疏水整理研究  

Study on non-fluorinated superhydrophobic finishing of cotton fabric by silica hydrosol process

作　　者：庄伟[1] 蔡再生[1] 徐壁[1] 徐丽慧[1] 

机构地区：[1]东华大学生态纺织教育部重点实验室,上海201620

出　　处：《印染助剂》2011年第3期35-38,共4页Textile Auxiliaries

基　　金：教育部科学技术研究重点项目资助(No.109066);上海市引进技术的吸收与创新计划项目(No.08-118)

摘　　要：以甲基三甲氧基硅烷为前驱体、氨水为催化剂,在表面活性剂作用下,制备了二氧化硅水溶胶,并将其整理到棉织物上使表面产生一定粗糙度,再将棉织物浸渍拒水添加剂乙醇水解液后,在棉织物上形成纳米无氟超疏水表面.分别讨论了氨水用量、表面活性剂浓度对溶胶粒径及织物拒水性的影响,研究了不同结构与用量的拒水添加剂水解液对拒水性能的影响.结果表明:整理后棉织物表面粗糙度大大提高,其中,斜纹织物的接触角和滚动角分别为151.9°和13°,达到超疏水效果.Silica hydrosol was prepared using methyltrimethoxysilane as precursor,ammonia liquor as catalyst in the presence of surfactant.Cotton with certain roughness was obtained by dip-coating the silica sol onto cotton surface,and then the cotton was immersed in the hydrophobic additive,ethanol digest,thus nano non-fluorinated superhydrophobic cotton fabrics could be obtained.The effects of ammonia liquor dosage and surfactant concentration on the hydrosol size and water repellency of fabrics were discussed.The influences of different structures and concentrations of the hydrophobic additive digest on the water-repellent property were also investigated.The results showed that the cotton surface roughness was greatly increased.After finishing,the water contact angle and water sliding angle of twill fabrics were 151.9° and 13°,respectively,which achieved the superhydrophobic effect.

关 键 词：棉织物 二氧化硅 水溶胶 无氟 超疏水 

分 类 号：TQ264.17[化学工程—有机化工]