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- 2017
柠檬酸中锌防蚀剂（1,3-Dioxolan-2-ylmethyl）三苯基溴化磷和碘离子的协同效应研究
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Abstract:
摘要 采用称重法、动电位极化法和电化学交流阻抗技术研究了30 oC时(1,3-Dioxolan-2-ylmethyl)三苯基溴化磷（DTPB）对0.5 mol·L-1柠檬酸中锌腐蚀行为的影响. 通过在环保型电解槽中对锌进行酸洗，这在文献中是不常用的. 结果表明，DTPB作为一种有效的防蚀剂，添加浓度仅为3×10-3 mol·L-1时，锌在柠檬酸溶液中的防蚀效率可达98.9%. 由于DTPB和碘化钾存在协同效应，两者联用时的防蚀效果要比单独使用DTPB强，防蚀参数为1.2，并随温度升高而减小. 本文提出了碘化钾作为吸附媒介，可使金属表面与DTPB结合的防蚀机制
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