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改性表面在微生物介质中耐蚀性研究

Research of Modified Surface Corrosion Resistance in Microbial Media
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摘要 利用化学镀Ni-P的方法对换热设备常见的碳钢进行表面改性。通过调整镀液工艺制备出不同的改性表面并计算了试样的表面能,然后对普通碳钢表面和改性表面试样进行了微生物腐蚀静置实验。结果表明:所制备改性表面耐蚀性明显,微生物污垢附着及引发的垢下腐蚀程度均较碳钢表面小;镀液工艺对改性表面的耐腐蚀性能有直接影响,进一步分析发现改性表面的表面能和试样的腐蚀失重量有明显关联,试样的表面能和表面腐蚀失重量均随着氨基乙酸和主盐浓度的增加而增大,但表面腐蚀失重量变化较小。 Making use of electroless Ni-P method, the surface modification of carbon steels commonly-used in heat exchange equipment was implemented, including preparing different modified surfaces and calculating their surface energy by adjusting the plating solutions. Implementing the microbial fouling experiments on the carbon steel's general surface and modified surface shows that the modified surface has obvious corrosion re- sistance and its microbial corrosion degree becomes slighter than that of the general surface; and the plating solution process directly influences the modified surface' s corrosiori resistance; and the modified surface' s surface energy relates to the corrosion weight loss closely, and the samples' surface energy and corrosion weight loss can increase along with glycine and main salt' s concentration increasing, but the corrosion weight loss' change extent is smaller than that of the surface energy.
出处 《化工机械》 CAS 2015年第3期345-349,363,共6页 Chemical Engineering & Machinery
基金 国家自然科学基金项目(51476025)
关键词 碳钢 改性表面 铁细菌 微生物污垢 耐蚀性 carbon steel, modified surface, iron bacteria, microbial fouling, anti-corrosion properties
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