Enhancement of Adhesive Strength of Ultrahigh Molecular Weight Polyethylene Fibers Prepared by Polar Polymer Implantation  

作　　者：于俊荣 杨新革 胡祖明 刘兆峰 

机构地区：[1]State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University [2]College of Chemistry and Chemical Engineering,Linyi Normal University

出　　处：《Journal of Donghua University(English Edition)》2007年第3期317-322,共6页东华大学学报（英文版）

基　　金：Shanghai Rising-Star Program (No.03 QF14001)

摘　　要：A new technique was proposed to enhance the adhesive strength of ultrahigh molecular weight polyethylene （UHMWPE） fibers. Polar polymer was implanted into UHMWE gel fibers during extracting process and can then be trapped on the surface of the fibers after subsequent ultra-drawing. The physical and chemical changes in the fiber structure were examined with scanning electron microscopy （SEM） and Fourier transform infrared （FTIR） spectroscopy. The mechanical and interfacial adhesion properties of UHMWPE fibers were investigated with tensile testing. The results showed that there were polar groups on the smface of pretreated UHMWPE fiber. The interracial shear strength of UHMWPE fibers with epoxy resin was greatly improved without sacrificing the excellent mechanical p^perties of fibers. After pretreated with ethylene/vinyl acetate copolymer （EVA）, the shear strength of the interface between fiber and epoxy resin increased from 1.06 to 2.49 MPa, while the integrated mechanical properties d the pretreated UHMWPE fibers were still optimal.一种新技术被建议提高粘合剂力量超离频分子的重量聚乙烯(UHMWPE ) 纤维。极的聚合物在提取过程期间被植入进 UHMWPE 胶化纤维并且然后能在纤维的表面被套住在以后随后极端绘画。在纤维结构的物理、化学的变化与扫描电子显微镜学(SEM ) 和 Fourier 变换被检验红外线(FTIR ) 光谱学。UHMWPE 纤维的机械、界面的粘附性质与张力的测试被调查。结果显示出那 pretreated UHMWPE 的表面上的在那里极小的极的组纤维。不同种族砍没有 socrificing，有环氧基树脂树脂的 UHMWPE 纤维的力量极大地被改进纤维的优秀机械性质。在有乙烯 / 乙烯基醋酸盐共聚物(EVA ) 的 pretreated 以后，在纤维和环氧基树脂树脂之间的接口的 shear 力量从 1.06 ～ 2.49 MPa 增加了，当时 pretreated UHMWPE 纤维商品的综合机械性质仍然最佳。

关 键 词：ultrahigh molecular weight polyethylenefibers polar polymer EXTRACTING inter facial strengthmechanical properties 

分 类 号：TQ340.653[化学工程—化纤工业]