PA6/GF/SP三元复合材料的制备及其力学性能研究  

Preparation and Mechanical Properties of PA6/Glass Fiber/Slag Powder Composites

作　　者：徐先锋[1,2] 曾玲升 刘烁[2] 包永忠[1] 张嘉敏 

机构地区：[1]浙江大学化学与生物工程学院,浙江杭州310027 [2]华东交通大学机电工程学院载运与装备重点实验室,江西南昌330013 [3]浙江凯雄科技有限公司,浙江台州318000

出　　处：《中国塑料》2015年第4期19-23,共5页China Plastics

基　　金：2014年浙江省博士后科研项目择优资助项目

摘　　要：以矿渣微粉(SP)和玻璃纤维(GF)为填料,经共混、挤出造粒、注射成型工序制备聚已内酰胺(PA6)/GF/SP三元复合材料,采用扫描电子显微镜观察断口形貌,通过检测复合材料试样的拉伸强度、冲击强度研究不同GF/SP配比比例以及SP的粒径对复合材料的力学性能影响。结果表明,当GF/SP配比填料总量定为30%(质量分数,下同),SP与GF比例为1∶3时,平均粒径为7μm的SP有最好的增强效果,拉伸强度为96.8 MPa;当SP平均粒径为15μm时,三元复合材料具有最佳的冲击强度,比纯PA6提高了32.4%,达到8.31kJ/m2。With slag powder and glass fibers as fillers in PA6 matrix,a ternary composite was prepared.Scanning electron microscope(SEM)was utilized to observe its fracture morphology.The effect of mass ratio of slag powder/glass fiber ratio and their size on the tensile strength,impact toughness of the composites was studied.It showed that when the slag powder/glass fiber ratio was 1∶3,the amount of the fillers was 30%,the average particle size was 7μm,the tensile strength reached 96.8 MPa.When the average particle size of slag powder was 15 microns,the ternary composite had an impact toughness of 8.31kJ/m2,which was 132.4% that of neat PA6.

关 键 词：聚已内酰胺 玻璃纤维 矿渣微粉 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]