【作者】 杨文峰；

【导师】 刘瑞泉；

【作者基本信息】 新疆大学 ， 物理化学， 2009， 硕士

【摘要】 合成了油酸咪唑啉、丙烯酸咪唑啉以及聚丙烯酸钠三种化合物。并通过红外谱图对其进行了结构表征,分别用失重法、Tafle曲线、交流阻抗等方法研究了油酸咪唑啉、丙烯酸咪唑啉、聚乙二醇和聚丙烯酸钠对2.0 mol/L的HCl溶液中铝箔的缓蚀作用,并通过比电容测定和扫描电镜研究了将其添加到扩孔腐蚀液中对铝箔比电容的影响。结果表明:本实验条件下单一盐酸腐蚀液中直流腐蚀过程的最佳电化学腐蚀参数为:铝箔在1.5mol/L的NaOH溶液中碱洗30s后,在2.0 mol/L的HCl溶液中进行直流腐蚀扩面,控制电流密度在0.2 A/cm2,腐蚀温度为55℃,腐蚀时间为150s。在2.0mol/L的HCl溶液中,油酸咪唑啉和丙烯酸咪唑啉对铝箔均属于阴极抑制型缓蚀剂,而聚乙二醇和聚丙烯酸钠属于混合型缓蚀剂。在铝箔腐蚀液中分别加入0.4 g/L油酸咪唑啉和0.6 g/L丙烯酸咪唑啉缓蚀剂后,使铝箔比电容从690.45μF/cm2分别增至887.35μF / cm2和901.12μF / cm2,提高约25%。使出现最大比电容的腐蚀时间从150 s延迟至210 s左右。分别加入1.5g/L聚乙二醇和2.5g/L聚丙烯酸钠,可使铝箔的最高比电容分别增至986.11μF/cm2和1101.91μF/cm2。在腐蚀液中分别加入这四种缓蚀剂后,使铝箔蚀孔分布更均匀、蚀孔密度增加,同时失重相对减少,质量保持率提高,有利于铝箔的深加工与使用。更多还原

【Abstract】 The oleic acid imidazoline ,acrylic acid imidazoline and sodium polyacrylate were synthesized and their structures were characterized by IR spectrum. The compounds included oleic acid imidazoline ,acrylic acid imidazoline ,polyethylene glycol and sodium polyacrylate’s corrosion inhibition behaviors for aluminium foil in 2. 0 mol /L HCl solution were studied by gravimetric measurements, potentiodynamic polarization curves and EIS. The compounds’influences on specific capacitance of electron aluminium foil during DC etching were investigated by capacitance measuring instrument and SEM. We made some conclusions through experiment:When single HCl etching solution existed, the best experimental condition of DC etching process was that: the aluminum foil was washed in 1.5mol / L NaOH solution about 30s, etched in 2.0 mol / L HCl solution , current density controled at 0.2 A/cm2, corrosion temperature was 55℃, corrosion time was 150s.The two imidazoline compounds were both cathodic corrosion inhibitors and the two polymers were both mixed inhibitor for aluminium foil in 2.0 mol/L HCl solution. When the concentration of oleic acid imidazoline and acrylic acid imidazoline in etching solution reached 0.4 g/L and 0.6g / L, value of specific capacitance of the aluminum foil increased from 690.45μF/cm2 to 887.35μF / cm2 and 901.12μF / cm2 separately, increase amplitude reached 25%. Etching time when maximum value of specific capacitance appeared delayed from 150 s to about 210s. When the concentration of polyethylene glycol and sodium polyacrylate in etching solution reached 1.5g / L and 2.5g / L,the value separately increased to 986.11μF/cm2 and 1101.91μF/cm2 .When the four compounds were added , weight loss relatively decreased, tunnel density increased and well distributed, weight maintenance rate was improved .All of these were beneficial to deep processing and using of aluminum foil.更多还原