| 银器文物的变色原因及防变色缓蚀剂的筛选 |
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| 引用本文： | 祝鸿范,周浩,蔡兰坤,张东曙. 银器文物的变色原因及防变色缓蚀剂的筛选[J]. 文物保护与考古科学, 2001, 13(1): 15-20 |
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| 作者姓名： | 祝鸿范 周浩 蔡兰坤 张东曙 |
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| 作者单位： | 1. 上海博物馆,上海,200231
2. 华东理工大学,上海,200232 |
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| 基金项目： | 国家文物局文物保护科研项目(编号9920) |
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| 摘 要： | 为探讨银器物变色的原因与防变色缓蚀剂的筛选研究，用极化曲线法对目前已知的多个银缓蚀剂进行缓蚀性能评价。筛选出较优良的银缓蚀剂为：2-巯基苯并恶唑(MBO)、1-苯基-5-巯基四氮唑(PMTA)、2-巯基苯并咪唑(MBI)等。这对银器物保护有较大的实用价值。
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| 关 键 词： | 防银变色 2-巯基苯并恶唑 1-苯基-5-巯基四氮唑 2-巯基苯并咪唑 |
| 修稿时间： | 2001-02-10 |
Tarnishing of silver antiques and screening of corrosion inhibitors in its prevention |
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| ZHU Hongfan,ZHOU Hao,CAI Lankun,ZHANG Dongsu. Tarnishing of silver antiques and screening of corrosion inhibitors in its prevention[J]. Sciences of Conservation and Archaeology, 2001, 13(1): 15-20 |
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| Authors: | ZHU Hongfan ZHOU Hao CAI Lankun ZHANG Dongsu |
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| Abstract: | Based on the analysis of silver tarnishing process,the screening of corrosion inhibitors used for prevention of silver antiques tarnishing was studied.Some known silver corrosion inhibitors were selected and their inhibition effectiveness was assessed with the method of electrochemical polarization curve.test results showed that corrosion inhibition of some evaluated compounds in 5mg/L Na2S solution was greater than 90%,1-phenyl-5-mercaptotetrzole(PMTA),2-mercapto-benzoxazole(MBO)and 2-mercaptobenzimidazole(MBI)were screened out as effective inhibitors.The research of screening and assessment of corrosion inhibitors has important practical meanings in archaeological silver artifacts conservation. |
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| Keywords: | Tarnishing corrosion inhibitors 2-mercaptobenzimidazole(MBI) 1-pheny-5-mercaptotetrzole(PMTA) 2-mercapto-benzoxazole(MBO) |
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