CAJ | 학술논문

采用紫外光接枝的方法，将甲基丙烯酸缩水甘油酯(GMA)接枝到苎麻织物上，再胺化、磷酸化，对苎麻织物进行阻燃改性，并利用手糊成型的方法制备了阻燃改性苎麻增强环氧树脂(EP)复合材料。用拉伸试验机和氧指数仪等研究了复合材料的力学性能和阻燃性能，用扫描电子显微镜观察了复合材料的拉伸断面形貌和燃烧残炭，并讨论了不同GMA接枝率对复合材料力学性能和阻燃性能的影响。结果表明，阻燃改性的苎麻织物与EP之间的粘结效果明显改善，提高了复合材料的力学性能和阻燃性能，接枝45% GMA的苎麻胺化、磷酸化后与EP复合，可使复合材料的极限氧指数达到25.6%。
채용자외광접지적방법，장갑기병희산축수감유지(GMA)접지도저마직물상，재알화、린산화，대저마직물진행조연개성，병이용수호성형적방법제비료조연개성저마증강배양수지(EP)복합재료。용랍신시험궤화양지수의등연구료복합재료적역학성능화조연성능，용소묘전자현미경관찰료복합재료적랍신단면형모화연소잔탄，병토론료불동GMA접지솔대복합재료역학성능화조연성능적영향。결과표명，조연개성적저마직물여EP지간적점결효과명현개선，제고료복합재료적역학성능화조연성능，접지45% GMA적저마알화、린산화후여EP복합，가사복합재료적겁한양지수체도25.6%。
The ramie fabric was modified with glycidyl methacrylate(GMA) via ultraviolet grafting method,then it was aminated and phosphorylated,and composed with epoxy resin to prepare flame retardant ramie reinforced epoxy resin composites. The mechanical behaviour,flame retardancy and tensile fracture morphology of composites were studied.The results show that it can improve cohesiveness between ramie and epoxy resin when ramie fabric is modified.The mechanical properties and flame retardancy of flame retardant ramie reinforced epoxy resin composites are improved.The limited oxygen index of composites reinforced with ramie which is grafted with 45% GMA can reach 25.6%.