超高分子量聚乙烯纤维织物/热塑性聚氨酯 复合材料的界面黏结性能  

Interfacial bonding properties of ultra-high molecular weight polyethylene fabric/thermoplastic polyurethane composites

作　　者：张杏[1,2] 叶伟[1,2,3] 龙啸云[1,2] 曹海建 孙启龙 马岩[1,2] 王征[4] ZHANG Xing;YE Wei;LONG Xiaoyun;CAO Haijian;SUN Qilong;MA Yan;WANG Zheng(National&Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection,Nantong University,Nantong,Jiangsu 226019,China;College of Textiles and Clothing,Nantong University,Nantong,Jiangsu 226019,China;Yangzhou Sparkle Industrial Co.,Ltd.,Yangzhou,Jiangsu 225200,China;Institute of Defense Engineering,AMS,Beijing 100036,China)

机构地区：[1]南通大学安全防护用特种纤维复合材料研发国家地方联合工程研究中心,江苏南通226019 [2]南通大学纺织服装学院,江苏南通226019 [3]扬州斯帕克实业有限公司,江苏扬州225200 [4]军事科学院国防工程研究院,北京100036

出　　处：《纺织学报》2023年第8期143-150,共8页Journal of Textile Research

基　　金：国家自然科学基金青年基金项目(52105153);江苏省自然科学基金面上项目(BK20221378)。

摘　　要：针对超高分子量聚乙烯(UHMWPE)纤维织物与热塑性聚氨酯(TPU)黏结性能差的问题,采用常压介质阻挡放电(DBD)等离子体对UHMWPE纤维织物进行表面处理及复合工艺的调整来提高复合材料界面黏结性能。研究了热压温度及时间和常压DBD等离子体处理电压及次数对纤维结构、纤维表面形貌及化学成分、丝束断裂强力及复合材料剥离强度的影响。结果表明:当热压温度为120℃,热压时间为30 s时,UHMWPE纤维织物与TPU的黏结性能达到最优,剥离强度达到了42.88 N/(25 mm);经过常压DBD等离子体处理后,UHMWPE纤维表面产生明显的刻蚀痕迹,纤维表面含氧极性官能团增加,丝束力学性能及复合材料剥离强度随着处理电压和次数的增加先升高后降低,当处理电压为200 V,处理3次时,丝束断裂强力增加了1.8%,剥离强度提升了30.72%。Objective This research is to tackle the poor adhesion between ultra-high molecular weight polyethylene(UHMWPE)fiber fabric and thermoplastic polyurethane(TPU)by using atmospheric pressure dielectric barrier discharge(DBD)plasma to treat the surface of UHMWPE fabric and adjust the adhesive process aiming to improve the composite material interface bonding properties.Method The UHMWPE fiber fabrics were treated by hot-pressing using a hot melt bonding machine with different parameters such as voltage and number of atmospheric pressure in DBD plasma treatment.The composite properties such as fiber structure,surface morphology,chemical composition,breaking strength and peeling strength were tested and characterized by scanning electron microscope,X-ray diffractometer,X-ray photoelectron spectrometer and electronic universal material testing machine.Results With the increase of heating temperature and time in the thermal compounding process,the monoclinic crystalline shape gradually disappeared and the diffraction peaks of orthogonal crystalline shape became smaller,and the high heating temperature easily led to the destruction of the regular fiber structure(Fig.2),causing decrease in fracture strength of fibers.For the adhesion performance of UHMWPE fiber fabric and TPU without atmospheric pressure DBD plasma treatment,the peel strength became larger with the increase of hot-pressing time at the lower temperature of 110℃and below.The peel strength increased and then decreased with the increase of hot-pressing time when the treatment temperature increases to 120℃and 130℃.When the hot-pressing temperature was 120℃and the time is 30 s,the adhesion performance of UHMWPE fiber fabric and TPU reached the optimum,and the peel strength reached 42.88 N/(25 mm)(Fig.5).After the atmospheric pressure DBD plasma treatment,the surface of UHMWPE fibers produced obvious etching marks(Fig.6),while a large number of free radicals were generated on the fiber surface under the excitation of plasma,and the free radicals reacted

关 键 词：超高分子量聚乙烯纤维 热塑性聚氨酯 断裂强力 界面 黏结性能 

分 类 号：TS102.6[轻工技术与工程—纺织工程]