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RESEARCH OF THE ANTI-TARNISHING PERFORMANCE OF PMM FOR SILVER |
Dongshu Zhang;Lankun Cai;Hongfan Zhu |
华东理工大学资源与环境工程学院 |
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Abstract By means of corrosion test of flower of sulfur vapo r,corrosion test under ultraviolet photallochromy acceleration and measurement o f polarization curve,the inhibition performance of 1-phenyl-5-mercaptotetrazole (PMTA),2-mercaptobenzoxazole (MBO),2-mercaptobenzimidazole (MBI) and the built i nhibitor (PMM) were evaluated.The result of corrosion test showed that PMM was t he most prominent for silver in the four inhibitors and the PMM took on the syne rgistic effect.The anti-tarnishing films were studied by the means of Auger elec tron spectroscopy (AES) and X-ray photoemission spectroscopy (XPS).Results showe d that the anti-tarnishing film formed by PMM is more compact and stabilized tha n that of mono-component inhibitor,so the mixed tarnishing inhibitor was more ef fective than mono-component inhibitor.
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Received: 08 May 2001
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Corresponding Authors:
Dongshu Zhang
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