玄武岩纤维纳米改性对增强环氧复合材料绝缘与力学性能的影响  

Effect of nanomodification of basalt fiber on insulation and mechanical properties of reinforced epoxy composites

作　　者：刘贺晨[1,2] 于云飞 张铭嘉 于红[1] 李乐[1] 刘云鹏[1,2] 杨红军 田正波 LIU Hechen;YU Yunfei;ZHANG Mingjia;YU Hong;LI Le;LIU Yunpeng;YANG Hongjun;TIAN Zhengbo(Hebei Provincial Key Laboratory of Green and Efficient New Electrical Materials and Equipment,North China Electric Power University,Baoding 071003,China;State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China;Xiangyang State Grid Composite Insulator Co.,Ltd.,Xiangyang 410000,China)

机构地区：[1]华北电力大学河北省绿色高效电工新材料与设备重点实验室,河北保定071003 [2]华北电力大学新能源电力系统国家重点实验室,北京102206 [3]襄阳国网合成绝缘子有限责任公司,湖北襄阳410000

出　　处：《绝缘材料》2024年第6期29-36,共8页Insulating Materials

基　　金：中央高校基本科研业务费专项资金(20226934)。

摘　　要：使用纳米氧化铝对玄武岩纤维进行表面改性,采用层压法制造改性玄武岩纤维/环氧树脂复合材料(BFRP),并研究纳米Al_(2)O_(3)含量对改性复合材料绝缘与力学性能的影响。结果表明:质量分数为1.0%的纳米Al_(2)O_(3)改性的玄武岩纤维复合材料(1.0K-BFRP)界面改性效果最佳。与未改性的复合材料相比,1.0K-BFRP的介质损耗因数降低了38.13%,沿面闪络电压提高了42.96%,击穿电压提高了33.96%,表现出更加优越的绝缘性能;拉伸强度、弯曲强度、层间剪切强度分别提高了26.46%、48.19%、66.06%,玻璃化转变温度提高了4.49℃。The surface of basalt fibers was modified by nano alumina,and then modified basalt fiber/epoxy resin composite(BFRP)was prepared by lamination method,and the effect of nano-Al_(2)O_(3) content on the insulation and mechanical properties of the modified composite was experimentally analyzed.The results show that when the mass fraction of nano-Al_(2)O_(3) is 1.0%,the interface modification effect of BFRP is the best.Compared with untreated composites,the dielectric loss factor of 1.0K-BFRP reduces by 38.13%,the surface flashover voltage increases by 42.96%,and the breakdown voltage increases by 33.96%,demonstrating more superior insulation performance;the tensile strength,flexural strength,and interlaminar shear strength increases by 26.46%,48.19%,and 66.06%,respectively,and the glass transition temperature increases by 4.49℃.

关 键 词：纳米氧化铝 玄武岩纤维 界面改性 复合材料 

分 类 号：TM215[一般工业技术—材料科学与工程]