PP/ES短纤高强土工非织造布的制备及其抗老化性能研究  

Research on the preparation of PP/ES staple fiber high-strength geo-nonwoven fabricand its anti-ageing performance

作　　者：韩丽娜 段亚明 朵永超 封严[2] 钱晓明[2] 许秋歌 HAN Lina;DUAN Yaming;DUO Yongchao;FENG Yan;QIAN Xiaoming;XU Qiuge(Beijing Jinglan Nonwovens Company Limited,Beijing 101200,China;School of Textile Science and Engineering,Tiangong University,Tianjin 300387,China)

机构地区：[1]北京京兰非织造布有限公司,北京101200 [2]天津工业大学纺织科学与工程学院,天津300387

出　　处：《丝绸》2024年第12期70-78,共9页Journal of Silk

基　　金：国家自然科学基金项目(52003306);河南省重大科技专项项目(221100310500);河南省高等学校重点科研项目(23A540003);中国纺织工业联合会应用基础研究项目(J201805)。

摘　　要：为降低紫外线对聚丙烯(Polyethylene,PP)非织造土工布的影响,选择ES(Ethylene-Propylene Side By Side)纤维和含有抗老化母粒的PP纤维为原料,TiO_(2)浸轧处理为后整理工序,采用针刺加固和热黏合加固技术制备了具有抗紫外老化功能的PP/ES高强非织造土工布。研究了抗老化工艺对PP/ES土工布力学性能和抗紫外老化性能的影响。结果表明:添加抗老化母粒和TiO_(2)浸轧后整理的PP/ES土工布力学性能少许上升;该土工布紫外老化后的羰基吸收峰强度最弱,T 5%仅下降4.73℃,纵向和横向的断裂强度保留率仅下降26.55%和26.76%,表现出最佳的抗紫外老化性能。The nonwoven geotextile has become the main variety of geotextiles due to its simple process,fast production speed,excellent mechanical properties,low cost and wide application.It has the functions of drainage,filtration,separation,reinforcement and protection,and is widely used in the fields of highway,railway,water conservancy and so on.Polypropylene is an inexpensive and excellent raw material with a wide range of sources,and boasts good acid and alkali resistance.Nonwoven geotextiles prepared from polypropylene can be better used in various types of projects,becoming the hot spot of research in the field of geotextiles in recent years.However,polypropylene tends to deteriorate over a long period of time due to external conditions such as light,temperature and oxygen,which reduces the service life of polypropylene nonwoven geotextiles and greatly restricts their popularisation and application in engineering.To improve the aging of polypropylene nonwoven geotextiles and to expand their application areas,it is necessary to conduct anti-aging treatment.To further improve the aging resistance of nonwoven geotextiles and prolong their service life,this study took ES fibers and PP fibers containing anti-aging masterbatch as raw materials,prepared PP/ES needle-punched nonwoven geotextiles by needle-punching process and PP/ES high-strength nonwoven geotextiles with UV aging resistance by impregnation of TiO_(2)by post-finishing process,and investigated the effect of the aging-resistance process on the mechanical properties and UV aging resistance of PP/ES geotextiles.The study also investigated the effect of anti-aging process on the mechanical properties,hydrodynamic properties and anti-ultraviolet aging properties of PP/ES geotextiles,and analyzed the effect of adding anti-aging masterbatch and TiO_(2)on the anti-aging properties of geotextiles by comparing them with pure PP geotextiles.It was found that the aging resistance of PP short-fiber nonwoven geotextiles and PP/ES nonwoven geotextiles was poor,and the fiber

关 键 词：PP/ES 抗老化母粒 TiO_(2) 抗紫外老化性能 土工布 后整理 

分 类 号：TS176.5[轻工技术与工程—纺织材料与纺织品设计] TQ340.642[轻工技术与工程—纺织科学与工程]