CHU SONGCHAO, PAN YUXIAN, HUANG YUNKAI, et al. Study on Metallized Al2O3-coated Polypropylene Film and its Capacitor Properties. [J]. Power capacitor & reactive power compensation, 2019, 40(6): 62-67.
CHU SONGCHAO, PAN YUXIAN, HUANG YUNKAI, et al. Study on Metallized Al2O3-coated Polypropylene Film and its Capacitor Properties. [J]. Power capacitor & reactive power compensation, 2019, 40(6): 62-67. DOI: 10.14044/j.1674-1757.pcrpc.2019.06.012.
金属化Al2O3涂覆聚丙烯薄膜及其电容器性能研究
摘要
为了提高聚丙烯薄膜的介电常数
利用陶瓷涂覆技术
在电容器用BOPP薄膜表面涂覆上一定厚度的Al
2
O
3
涂层
涂覆后
复合薄膜的介电常数从2.2提高到2.8(1 000 Hz)。把涂覆复合薄膜进行金属化蒸镀
制作成电容器
并进行了复合薄膜及其电容器相关性能测试。虽然涂覆复合薄膜的击穿强度有所下降
但电容器的损耗角正切增加不大。另外
涂覆复合薄膜电容器具有良好的自愈性能
可实现电容器"隔离自愈"
能有效防止电容器自愈击穿短路失效。
Abstract
For improving the permittivity of polypropylene films
the Al
2
O
3
coating with a definite thickness is coated on the surface of BOPP capacitor film by the ceramic coating technology. After the coating
the permittivity of the composite film is increased from 2.2 to 2.8(1 000 Hz). The coated composite film is subject to evaporation to make into capacitor and related tests for the composite film and its capacitor are performed. Although the breakdown strength of the coated composite film is decreased
yet the tangent of the loss of capacitor is not increased too much. In addition
the coated composite film capacitor has good selfhealing property
which can realize the capacitor to isolate
self-healing and effectively prevent the capacitorfromself-healingbreakdownofshortcircuitfailure.
关键词
金属化薄膜电容器BOPP涂覆Al2O3隔离自愈
Keywords
metallized film capacitorBOPP filmcoatingAl2O3isolating self-healing