摘要： 【目的】为解决全氟拒水剂难降解、非全氟拒水剂耐久性差等问题。【方法】以 2，3，4，5，5，5-六氟-2，4-双（三氟甲基）戊基甲基丙烯酸酯（DFHMA）、丙烯酸十八酯（SA）和 1，2-二氯乙烯（VDC）为主要单体， N-羟甲基丙烯酰胺（N-MA）为自交联单体，采用细乳液聚合法合成了一种自交联型非全氟改性聚丙烯酸酯乳液。研究了 m（DFHMA）∶m（SA）和 N-MA用量对乳液性能的影响。通过红外光谱仪（FT-IR）、差式扫描量热仪（DSC）和热重分析仪（TGA）表征了共聚物的结构及性能。随后，对乳液在涤纶织物上的整理工艺进行优化，通过水接触角、织物沾水度测试对整理后织物进行应用研究。【结果】整理后织物在保持良好拒水性（水接触角为143. 4°、拒水分数为 100分）的同时，且具有优异的耐久性（摩擦 320次后，水接触角为原来的 88. 56%；水洗 30次后，拒水分数为原来的 85%）。【结论】本研究为开发一种环保型的耐久拒水剂提供了一种可行的、可持续的设计策略。
关键词:
自交联,
非全氟单体,
改性聚丙烯酸酯,
拒水性,
耐久性
Abstract: ［Objective］ To solve the problems of difficult degradation of perfluorinated waterrepellent and poor durability of non-perfluorinated water repellent.［Methods］A self-crosslinkingnon-perfluorinated modified polyacrylate emulsion was synthesized by miniemulsion polymerizationusing 2，3，4，5，5，5，5-hexafluoro-2，4-bis（trifluoromethyl）pentyl methacrylate（DFHMA），octadecyl acrylate（SA）and 1，2-dichloroethylene（VDC）as the main monomers，N-hydroxymethyl acrylamide（N-MA）as the self-crosslinking monomer. The effects of m（DFHMA）∶m（SA）and the amount of N-MA on the performance of the emulsion were studied. The structure and performance of the copolymerwere characterized by infrared spectroscopy（FT-IR），differential scanning calorimetry（DSC） and thermogravimetric analyzer（TGA）. Subsequently，the finishing process of the emulsion on the polyester fabric was optimized，and the application of the finished fabric was studied by contact angle and fabric water staining test.［Results］After finishing，the fabric maintained good water repellency（contact angle of 143. 4°，water repellency fraction of 100 points） and excellent durability（hold 88. 56% of the original contact angle after 320 cycles of friction；after washing 30 times，the water repellency fraction was 85% of the original value）.［Conclusion］This study provides a feasible and sustainable designstrategy for the development of an environmentally friendly durable water repellent.
Key words:
self-crosslinking,
non-perfluorinated monomers,
modified polyacrylate,
water repellency,
durability
中图分类号: