摘要
针对复合绝缘子用Φ280 mm超大直径玻纤/环氧芯棒,在一次拉挤成型过程中出现的开裂问题,本研究对芯棒树脂基体的固化放热及热传导机制进行了分析,并研究了不同活性酸酐/环氧促进体系的放热特性,从中优选了2-乙基-4-甲基咪唑、三苯基磷、四丁基溴化磷三个固化促进体系,进行工艺配方的组合设计。实际应用表明:与采用单一基体树脂配方相比,针对径向不同层面反应活性要求的多重配方组合工艺,能够有效避免热积累现象的出现和裂纹产生。
For the composite insulator with Φ280 mm super diameter glass fiber/epoxy mandrel,in the process of primary extrusion cracking problem,on the basis of analyzing the resin matrix curing heat and heat conduction mechanism,studied the characteristics of different active anhydride/epoxy promotion system,preferred 2-ethyl-4-methyl imidazole,triphenyl phosphorus,tetrabutyl phosphorus bromide,the combination of process formula design.The practical application shows that,compared with the single matrix resin formula,the multiple formula combination process of different levels of radial reactivity re-quirements can effectively avoid the occurrence of heat accumulation and cracks.
作者
樊宏斌
石刘建
游焕洋
刘若望
FAN Hongbin;SHI Liujian;YOU Huanyang;LIU Ruowang(College of Chemistry and Materials Engineering,Wenzhou University,Wenzhou 325035,China;New Asia Electronics Co.,Ltd.,Wenzhou 325603,China;Zhejiang Golden Phoenix Electric Power Technology Co.,Ltd.,Shaoxing 312300,China)
出处
《电瓷避雷器》
CAS
北大核心
2023年第2期203-210,共8页
Insulators and Surge Arresters
基金
浙江省科技厅省级重点研发计划项目(编号:2021C01171)。
关键词
复合绝缘其子
环氧芯棒
应力开裂
放热特性
composite insulator
epoxy mandrel
stress cracking
exothermic properties
