顺丁烯二酸对铝电解电容器用高压阳极箔的影响  

Influence of cis-2-butenedioic acid on high voltage anodic foil for electrolytic capacitor

作　　者：鲁娜 LU Na(Xinjiang Joinworld Company Limited,Urumqi 830001,China)

机构地区：[1]新疆众和股份有限公司,新疆乌鲁木齐830001

出　　处：《电子元件与材料》2018年第6期53-56,共4页Electronic Components And Materials

摘　　要：阳极箔表面氧化膜的性能是决定铝电解电容器体积与应用的关键因素,为了提高铝电解电容器用高压阳极箔的耐水合特性,研究了顺丁烯二酸对阳极氧化膜性能的影响。在由硼酸-柠檬酸混合酸组成的化成液中添加0.003 mol/L顺丁烯二酸,在540 V电压下制备阳极箔,水合处理后测试阳极氧化膜的耐水合特性,阳极氧化膜升压时间缩短48 s。用扫描电子显微镜(SEM)观察阳极氧化膜膜厚均匀,用粉末衍射(XRD)、红外光谱(IR)分析氧化膜组成,未发现明显水合氧化物Al(OH)3特征峰。说明在化成液中添加顺丁烯二酸有助于均匀氧化膜的形成,可有效提高阳极箔的耐水合特性。The size and application of aluminum electrolytic capacity strongly depend on the properties of the anodic oxide film formed on aluminum foil. To increase the hydration resistance of high voltage anode foil for aluminum electrolytic capacitor,the influence of cis-2-butenedioic acid on the properties of anodic oxide film was studied. After adding 0. 003 mol/L cis-2-butenedioic acid to the mixed solution of boric acid and citric acid,the results showthat the rise time of oxide film formed at the anodizing voltage of 540 V is 48 s shorter than no cis-2-butenedioic acid. The SEMresults indicate that the uniform oxide film is formed,and there is no hydroxide Al（ OH）3 existence by IR and XRD. In summary,the cis-2-butenedioic acid is helpful for the formation of uniform oxide film and enhances the hydration resistance of aluminum foil obviously.

关 键 词：铝电解电容器 高压阳极箔 阳极氧化膜 耐水合性 耐压值 升压时间 

分 类 号：TM353[电气工程—电机]