玻璃纤维增强环氧树脂复合材料性能研究  

Research on the Properties of Glass Fiber Reinforced Epoxy Resin Composite Materials

作　　者：张向可 徐鹏飞 董保莹 陈拴成 陈春辉 陈康 ZHANG Xiangke;XU Pengfei;DONG Baoying;CHEN Shuancheng;CHEN Chunhui;CHEN Kang(Henan Pinggao Electric Co.,Ltd.,Pingdingshan 467001,China)

机构地区：[1]河南平高电气股份有限公司,河南平顶山467001

出　　处：《河南科技》2024年第17期80-83,共4页Henan Science and Technology

基　　金：550 kV断路器用方形绝缘拉杆关键制备技术研究项目(PGKJ2022-214)。

摘　　要：【目的】研究玻璃纤维增强环氧树脂复合材料在绝缘拉杆领域的应用。【方法】采用7628玻璃纤维织物为增强材料,双酚A型环氧树脂为基体,制备环氧玻璃纤维复合材料。对复合材料进行电气性能、机械性能与热力学性能测试,根据试验结果分析复合材料各项性能特点,并与绝缘拉杆用产品材料性能参数进行对比。【结果】7628玻璃纤维增强环氧树脂复合材料拉伸强度可达到583 MPa,弯曲强度达到570 MPa,剪切强度达到53 MPa,击穿电压大于100 kV,玻璃化转变温度达到106℃,线膨胀系数仅为6.84×10~(-6);绝缘拉杆产品拉伸破坏强度为149 kN,机械性能裕度为1.5倍,且通过了1.2倍雷电冲击裕度试验。【结论】该复合材料具有优异的机械性能、电气击穿强度与热力学稳定性,不仅保证了绝缘拉杆的稳固性和耐久性,还提高了其在复杂环境中的可靠性和安全性,在绝缘拉杆领域具有良好的应用前景。[Purposes]This paper studies the application of glass fiber reinforced epoxy resin composites in the field of insulating rod.[Methods]Using 7628 glass fiber fabric as the reinforcing material and bi-sphenol A epoxy resin as the matrix,epoxy glass fiber composites were prepared.The electrical,mechani-cal and thermodynamic properties of the composites were tested.Based on the experimental results,the performance characteristics of the composites were analyzed and compared with the performance param-eters of product materials for the insulating rod.[Findings]The 7628 glass fiber reinforced epoxy resin composite material can achieve a tensile strength of 583 MPa,a flexural strength of 570 MPa,a shear strength of 53 MPa,a breakdown voltage greater than 100 kV,a glass transition temperature of 106℃,and a linear expansion coefficient of only 6.84×10-6.The insulating rod product has a tensile failure strength of 149 kN,a mechanical performance margin of 1.5 times,and has passed the 1.2 times light-ning impulse margin test.[Conclusions]This composite material exhibits exceptional mechanical proper-ties,electrical breakdown strength,and thermodynamic stability,not only ensuring the stability and dura-bility of the insulating rod but also enhancing their reliability and safety in complex environments,which presents promising application prospects in the field of insulating rod.

关 键 词：绝缘拉杆 复合材料 玻璃纤维 绝缘性能 

分 类 号：TB332[一般工业技术—材料科学与工程]