CAJ | 학술논문

文章采用铬酸对超高分子量聚乙烯纤维进行表面处理，根据处理时间、温度与处理后纤维强力的关系及纤维表面形貌对比，确定最佳处理条件为：处理温度80℃，处理时间2 min；根据红外光谱（FTIR）分析探讨铬酸氧化机理，确定铬酸处理后纤维表面产生羟基、羰基等极性基团；通过对比处理前后DSC曲线，确定铬酸处理能够提高纤维熔点；借助单丝拔出实验发现铬酸处理后纤维与环氧树脂基体粘结性能够提高63％。
문장채용락산대초고분자량취을희섬유진행표면처리，근거처리시간、온도여처리후섬유강력적관계급섬유표면형모대비，학정최가처리조건위：처리온도80℃，처리시간2 min；근거홍외광보（FTIR）분석탐토락산양화궤리，학정락산처리후섬유표면산생간기、탄기등겁성기단；통과대비처리전후DSC곡선，학정락산처리능구제고섬유용점；차조단사발출실험발현락산처리후섬유여배양수지기체점결성능구제고63％。
By analyzing the strength and superficial morphology of fiber with changes of experi-mental time and temperature,the most appropriate conditions could be deduced as follows:tempera-ture 80℃,processing time 2 min,after external treatment of UHMWPE by chromic acid.FTIR anal-ysis was used to explore the mechanism of chromic oxide and conclusion would be drawn that polar groups ,like hydroxyl and carbonyl would appear on the surface of fiber by chromic test.According to the DSC curve chart before and after treatment,the result shows that chromate plays a positive part to help to improving fibers′melting point;yet the monofilament pulling-out experiment serves as a proof that adhesion strength of fibers and epoxy matrix by chromate would be improved by 63%.