无卤阻燃薄膜电容灌封材料的制备及应用  

Application of Halogen-free Flame Retardant Potting Materials for Film Capacitor

作　　者：蒋寅 JIANG Yin(Yixing Pulitai Electronic Materials Co.,Ltd.,Wuxi 214215,China)

机构地区：[1]宜兴市普利泰电子材料有限公司,江苏无锡214215

出　　处：《绝缘材料》2021年第5期34-39,共6页Insulating Materials

摘　　要：以双酚A型环氧树脂、磷系阻燃剂、氢氧化铝和分子筛为主剂,以有机酸酐和促进剂作为固化剂制备一种无卤阻燃薄膜电容灌封材料。研究了不同阻燃剂及添加量对灌封材料玻璃化转变温度、阻燃性能和电容耐久性能的影响,并确定了无卤阻燃薄膜电容灌封材料最佳配方。结果表明:按无卤阻燃薄膜电容灌封材料的最佳配方制备的灌封材料玻璃化转变温度为104℃,阻燃等级为V0,电气绝缘性能佳。以此灌封材料灌注的薄膜电容可以通过1.2倍额定电压、双85(85℃/85%RH)条件下600 h的耐久性试验,试验前后电容变化率为3.93%。Using bisphenol A epoxy resin,phosphorus flame retardant,aluminum hydroxide,and molecular sieve as the main agent,organic anhydride and accelerator as curing agent,we prepared a halogen-free flame retardant potting material for film capacitor.The effects of different flame retardants and filling content on the glass transition temperature and flame retardancy of the potting materials and the durability of the capacitor were studied,and the optimum formula of halogen-free flame retardant potting material for film capacitor was determined.The results show that the glass transition temperature of the potting materials prepared by the optimum formula is 104℃,and the flame retardant is V0(3 mm),and the electrical insulation performance is good.The film capacitor potted with this potting material can meet the 600 h durability test under the condition of 1.2 times of voltage and 85%RH/85℃,and the capacitance change rate before and after test is 3.93%.

关 键 词：无卤阻燃 薄膜电容 灌封材料 

分 类 号：TM215.3[一般工业技术—材料科学与工程]