CAJ | 학술논문

采用醋酸乙烯酯（VAc）和甲基丙烯酸异辛酯（EHMA）原位聚合法包覆玻璃纤维（GF），制备了共聚物改性玻璃纤维GF/VAc-g-EHMA ，将其填充到超高分子量聚乙烯（UHMWPE）中制备复合材料．考察了GF与改性单体质量比、GF长径比、偶联剂及GF填充量对填充U HM WPE复合材料机械性能的影响．选用长径比为4．8∶1～5．3∶1的G F ，并以K H550预处理，以单体质量∶GF质量＝1∶4比例进行原位聚合，所得的改性GF再按10％填充量加入U HM WPE时，所得复合材料性能较好．此时材料的拉伸强度为31．3M Pa ，断裂伸长率为435％，质量磨耗率低于0．14％． SEM 观察表明，树脂和GF的结合较好．
채용작산을희지（VAc）화갑기병희산이신지（EHMA）원위취합법포복파리섬유（GF），제비료공취물개성파리섬유GF/VAc-g-EHMA ，장기전충도초고분자량취을희（UHMWPE）중제비복합재료．고찰료GF여개성단체질량비、GF장경비、우련제급GF전충량대전충U HM WPE복합재료궤계성능적영향．선용장경비위4．8∶1～5．3∶1적G F ，병이K H550예처리，이단체질량∶GF질량＝1∶4비례진행원위취합，소득적개성GF재안10％전충량가입U HM WPE시，소득복합재료성능교호．차시재료적랍신강도위31．3M Pa ，단렬신장솔위435％，질량마모솔저우0．14％． SEM 관찰표명，수지화GF적결합교호．
Modified glass fiber (GF) filled UHMWPE composites were prepared via in-situ poly-merization of vinyl acetate(VAc) and methyl iso-octyl methacrylate(EHMA) .The effects of the mass ratio of monomer and GF ,the aspect ratio of GF ,coupling selection and the filler content on the mechanical properties were studied .When the aspect ratio of GF is 4 .8∶1~5 .3∶1 ,pre-treated by KH550 ,Mm (monomer mass)∶ Mg (GF mass)= 1∶4 in situ polymerization ,and 10% addition of modified GF ,the GF/VAc-g-EHM A composite show the highest values of me-chanical properties .Tensile strength is 31 .3MPa ,elongation at break is 435% ,the wear rate is lower than 0 .14% by mass .The SEM results show the bonding quality between the GF and the matrix is good .The bonding manner between the filler and the matrix were further investigated with infrared spectroscopy.