聚丙烯短纤维/环氧树脂复合材料的研制  

Development of polypropylene short fiber/epoxy resin composites

作　　者：方轲 傅万里[1] 林婷 朱柳莉 俞乐 周建萍[1] FANG Ke;FU Wanli;LIN Ting;ZHU Liuli;YU Le;ZHOU Jianping(School of Material Science&Engineering,Nanchang Hangkong University,Nanchang 330063,Jiangxi,China)

机构地区：[1]南昌航空大学材料科学与工程学院,江西南昌330063

出　　处：《江西化工》2022年第2期75-78,共4页Jiangxi Chemical Industry

摘　　要：本文先采用低温等离子体对聚丙烯短纤维进行表面处理,进而制备了聚丙烯(polypropylene,PP)短纤维/环氧树脂复合材料,研究了表面改性、不同含量、不同长度的PP纤维对复合材料力学性能的影响。研究结果表明,经等离子体改性后,红外光谱出现了-OH的特征吸收峰,且纤维表面变得粗糙。随着纤维含量的增加,复合材料的拉伸强度和冲击强度均出现了先增大后减小的现象。当纤维的含量为2%时,复合材料的力学性能最佳,改性纤维的复合材料的拉伸强度和冲击强度对比未改性纤维的复合材料都有提高。当纤维长度为9 mm时,复合材料的力学性能最佳。In this paper,the surface of polypropylene short fiber was first treated by low-temperature plasma,and then polypropylene(PP)short fiber/epoxy resin composites were prepared.The effects of surface modification,content and length of PP fiber on the mechanical properties of the composites were studied.The results show that after plasma modification,the characteristic absorption peak of-OH appears in the infrared spectrum,and the fiber surface becomes rough.With the increase of fiber content,the tensile strength and impact strength of the composites increased first and then decreased.When the content of fiber is 2%,the mechanical properties of the composites are the best.The tensile strength and impact strength of the modified fiber composites are higher than those of the unmodified fiber composites.When the fiber length is 9mm,the mechanical properties of the composites are the best.

关 键 词：聚丙烯纤维 环氧树脂 复合材料 等离子体 表面改性 

分 类 号：TB332[一般工业技术—材料科学与工程]