摘要
为提高路面板材料的力学性能,以超高分子质量聚乙烯(UHMWPE)为基体树脂、连续玻璃纤维织物为增强体,通过设计挤出模头,釆用熔融浸渍工艺和层压工艺,制备连续玻璃纤维增强UHMWPE复合材料层压板.研究玻璃纤维体积分数(30%、40%、50%和55%)对UHMWPE复合材料拉伸、层间剪切、冲击等性能的影响规律,测试分析不同纤维体积含量条件下的UHMWPE复合材料热性能的变化规律.测试结果表明:当玻璃纤维体积分数分别为50%、40%时,UHMWPE复合材料拉伸强度和层间剪切强度分别达到最大值,分别为675.9 MPa和23.13 MPa,证明增加玻璃纤维的体积含量可有效提高UHMWPE复合材料冲击强度.当温度分别低于70℃和91℃时,UHMWPE复合材料的储能模量与损耗模量随着纤维体积含量的增加而增加.提高UHMWPE复合材料的纤维体积含量,可在一定程度上提高其玻璃化温度.
In order to improve the performance of pavement plate materials,the UHMWPE thermoplastic laminate composites reinforced by continuous glass fiber fabric were prepared by extruding melt infusion with designing extrusion die head and hot molding technology.The tensile,interlaminate shear,impact and thermal performances were tested by different fiber volume content at value of 30%,40%,50%and 55%.The results indicated that the tensile strength and interlaminar shear strength were 675.9 MPa,23.13 MPa respectively,which were also their maximum values.It was an effective method for improving the impact strength of UHMWPE thermoplastic laminate composites with increasing.The storage modulus and loss modulus of UHMWPE composites were increased with the increase of fiber volume content with the temperatures below 70℃and 91℃separately.The glass transition temperatures of UHMWPE composites could be improved in some extents by increasing fiber volume content.
作者
徐靖
周小丽
张友刚
XU Jing;ZHOU Xiao-li;ZHANG You-gang(AVIC Aerospace Life-Support Industries Ltd,Xiangyang 441003,Hubei Province,China)
出处
《天津工业大学学报》
CAS
北大核心
2018年第1期19-25,共7页
Journal of Tiangong University
基金
航空科学基金资助项目(201529Q2002)
关键词
超高分子质量聚乙烯热塑性复合材料
纤维体积含量
连续玻璃纤维
路面板材料
力学性能
ultra-high molecular weight polyethylene thermoplastic composites
fiber volume content
continuous glass fiber
pavement plate material
mechanical properties
