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青铜病一般认为主要是由氯离子的作用引起的。所以在青铜器保护方法研究中,需考虑耐氯离子性能的优劣。采用1-苯基-5-巯基四氮唑(PMTA)对青铜试片进行缓蚀处理、发现处理后的青铜试片肉眼分辨不出表面有变化,经盐水(3.5%NaCl溶液)浸泡试验和电化学腐蚀性能测试后,发现其抗氯离子腐蚀效果比单独用苯骈三氮唑(BTA)处理要好。因此PMTA有可能用来取代BTA以改善对青铜病的处理。用电子能谱(XPS和AES)研究了PMTA对青铜试片的缓蚀性能,发现PMTA能与青铜试片表面相互作用而形成复杂的络合物膜,因而在3.5%NaCl溶液中有较强的抗腐蚀性能。
Bronze disease is generally believed to be caused mainly by the action of chloride ions. Therefore, the protection of bronze in the study, the need to consider the merits of chloride resistance. The bronze specimens were treated with 1-phenyl-5-mercapto tetrazolium (PMTA), and the surface of the bronze specimens was not damaged by the naked eye. After immersion test in saline (3.5% NaCl solution) After electrochemical corrosion testing, it was found that the corrosion resistance of chloride ion was better than that of BTA alone. Therefore PMTA may be used to replace BTA to improve the treatment of bronchitis. The corrosion inhibition properties of PMTA on bronze specimens were studied by means of XPS and AES, and it was found that PMTA interacted with the surface of bronze specimen to form complex complex films. Therefore, it was found to be stronger in 3.5% NaCl solution Corrosion resistance.