聚多巴胺诱导纳米TiO2自组装改性PP纤维及其抗紫外性能  

UV resistance of self-assembled polypropylene fiber by nano-TiO2 induced by polydopamine

作　　者：朱梦玲[1] 臧传锋[1] 李素英[1] 周曦 徐欢 鲍纬 ZHU Meng-ling;ZANG Chuan-feng;LI Su-ying;ZHOU Xi;XU Huan;BAO Wei(School of Textile and Clothing,Nantong University,Nantong 226019,China;Wuxi Customs of People's Republic of China,Wuxi 214100,China)

机构地区：[1]南通大学纺织服装学院,江苏南通226019 [2]中华人民共和国无锡海关,江苏无锡214100

出　　处：《印染》2019年第9期10-14,共5页China Dyeing and Finishing

基　　金：国家重点研发计划项目(2016YFB0303100);南京海关科研计划项目(2018KJ48);博士启动项目(03082071);南通大学研究生自主创新项目(FZ201709);大学生创新创业训练计划项目(201710304027Z)

摘　　要：采用溶胶凝胶法制备纳米二氧化钛(TiO2,利用聚多巴胺(PDA)的高黏附性对聚丙烯纤维表面进行修饰,再将纳米Ti(X与PP纤维表面的PDA结合,制备抗老化聚丙烯纤维。结果表明:制备的纳米TiO,被成功改性到PP纤维表面,并在PP纤维表面形成了均匀、致密,且牢固结合的纳米TiO2薄膜层。经长时间紫外光照射后,改性后的PP/PDA/TiO2纤维的强力比原PP纤维有明显提高,且强力下降速率明显降低;改性后PP/PDA/TiO2纤维的抗紫外光老化能力也有显著提升。In this paper, nano-titanium dioxide (nano-TiO2) is prepared by sol-gel method. The surface of polypropylene fiber is modified by high adhesive polydopamine (PDA), and nano-TiCh is combined with PDA on PP surface to prepare anti-aging acrylic fiber. The experimental results show that the prepared nano-TiO2 is successfully grafted onto the surface of PP fiber, and a uniform, compact and firmly bonded nano-TiO2 film layer is formed on the surface of PP fiber. After long-term ultraviolet irradiation, the strength of modified PP/PDA/TiO2 fiber is significantly higher than that of PP fiber. The anti-UV aging ability of modified PP/PDA/TiO2 fiber is significantly higher than that of PP fiber.

关 键 词：改性 自组装 溶胶凝胶 二氧化钛 聚丙烯纤维 

分 类 号：TS195.54[轻工技术与工程—纺织化学与染整工程]