电子元件与材料2016，Vol.35Issue(5)：81-84,4.DOI:10.14106/j.cnki.1001-2028.2016.05.020
缓蚀剂对超高压铝箔腐蚀扩孔的影响
Effect of inhibitor on extending hole of supervoltage aluminum foil
摘要
Abstract
The initial etching process was in HCl-H2SO4solution. In the extending hole solution of 1 mol·L–1 HNO3, polyethylene glycol was added as inhibitor. Effects of the concentration of inhibitor, corrosion time and temperature on the hole extending results of supervoltage aluminum foil were investigated by means of SEM data and with the specific capacitance of 730 V secondary formed foils as the main evaluation index. The results show that the introduction of the inhibitor polyethylene glycol lead to an increasing of the specific capacitance of anodic aluminum foil. Pit density is increased and pit diameter is decreased with the increase of the concentration of inhibitor. Besides, corrosion time and temperature also affect the corrosion effect significantly. The favorable concentration of polyethylene glycol is 1.0 g·L–1 when aluminum foil is formed at 730 V. When the concentration of inhibitor reaches to 1.0 g·L–1 and the corrosion time is 500 s at 75℃, the specific capacitance of anodic aluminum foil reaches the maximum value of 0.434×10–6F·cm–2, increased by 8.5% compared with that aluminum foil without inhibitor.关键词
超高压/铝电解电容器/阳极箔/缓蚀剂/聚乙二醇/比容Key words
supervoltage/aluminum electrolytic capacitor/anode foil/inhibitor/polyethylene glycol/specific capacitance分类
信息技术与安全科学引用本文复制引用
吴洪达,张泽远,蔡小宇,张兵兵,贾佑顺..缓蚀剂对超高压铝箔腐蚀扩孔的影响[J].电子元件与材料,2016,35(5):81-84,4.基金项目
广西科学研究与技术开发计划项目资助 （）
