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首页> 外文期刊>Journal of Applied Polymer Science >Synergistic effect of halide ions on the corrosion inhibition of aluminum in acidic medium by some polymers
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Synergistic effect of halide ions on the corrosion inhibition of aluminum in acidic medium by some polymers

机译：卤离子对某些聚合物对酸性介质中铝的缓蚀作用的协同作用

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The corrosion inhibition of aluminum in H2SO4 the presence of polyvinyl alcohol (PVA) and polyethylene glycol (PEG) and the effect of addition of halides (KCl, KBr, KI) was Studied using the hydrogen evolution technique at 30 and 40 degrees C. Inhibition efficiency (%I) increases with concentration of PVA and PEG-but With PEG having higher %I. The %I decrease with increase in temperature frorn 30 to 40 degrees C in the absence and presence of inhabitor and halides. PVA and PEG were found to obey Freundlish adsorption isotherm. Phenomenon of physical adsorption is proposed from the obtained E-a, A/G(ads), and Q(ads), Values obtained. The synergism parameters (S-1) obtained were found to be greater than unity for both PVA and PEG(1) which indicates that the enhanced inhibition efficiency caused by the addition of halides is only due to synergism. (c) 2006 Wiley, Periodicals, Inc.
机译：在30和40摄氏度下使用析氢技术研究了在聚乙烯醇（PVA）和聚乙二醇（PEG）存在下H2SO4中铝的腐蚀抑制和卤化物（KCl，KBr，KI）添加的影响。效率（％I）随着PVA和PEG浓度的增加而增加，但是PEG具有更高的％I。在不存在和存在居民和卤化物的情况下，随着温度的升高（从30到40摄氏度），％I降低。发现PVA和PEG符合Freundlish吸附等温线。从得到的E-a，A / G（ads）和Q（ads）提出了物理吸附现象，得到了数值。对于PVA和PEG（1），发现获得的协同参数（S-1）均大于1，这表明由添加卤化物引起的抑制效率提高仅是由于协同作用。 （c）2006年Wiley，Periodicals，Inc.

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