纺织品无氟溶胶-凝胶法拒水整理  

Non-fluorinated water repellent finishing of textiles by sol-gel process

作　　者：高琴文[1] 朱泉[1] 郭玉良[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》2009年第7期11-14,共4页Textile Auxiliaries

基　　金：长江学者与创新团队发展计划资助项目(No.IRT0526)

摘　　要：利用正硅酸四乙酯及长链烷烃硅氧烷,采用溶胶-凝胶法及自组装方式对棉和涤纶织物进行拒水整理,通过先浸轧二氧化硅溶胶、再浸渍烷烃硅氧烷的方式赋予织物拒水性能.考察了烷烃硅氧烷结构和浓度及皂洗次数对接触角的影响,并利用扫描电子显微镜对二氧化硅溶胶整理前后棉和涤纶织物的表面形态进行比较.结果表明:以不同碳链长度的硅氧烷对经溶胶整理后的织物进行整理,均能提高拒水性能.随着碳链长度的增加,接触角增大;随着水解硅氧烷浓度的增加,拒水性能也得到提高.整理后的棉织物经30次皂洗后,与水的接触角为95°,涤纶织物为110°,仍保持一定拒水性能.性能测试表明整理前后织物的物理机械性能变化较小。Water-repellent cotton and polyester textiles was successfully obtained using tetraethyl-n-silicate and long chain alkane siloxane by sol-gel method and self-assembly manner. The water repellent property of fabric was endowed by dip-padding the silica sol, and then dipping into alkane siloxane. The influence of structure and concentration of alkylane siloxane, and washing cycles on contact angles were discussed. Morphology of cotton and polyester textiles surfaces treated with and without silica sol were compared by scanning electron microscopy. The results indicated that the water repellency of sol treated fabric could all be improved by finishing using siloxane with different length of carbon chains. With the length of carbon chains increasing, the contact angles increased. With the concentration of hydrolytic siloxane increasing, the water repellency of fabric also increased. The water contact angle of finished cotton fabric and polyester fabric after 30 times soaping was 95° and 110°,respectively, and they also retain certain water repellency. The property measurement of fabrics showed that there was a little change after treatments.

关 键 词：棉织物 涤纶织物 溶胶-凝胶法 无氟 拒水 

分 类 号：TQ610.493[化学工程—精细化工]