...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of industrial and engineering chemistry >Corrosion inhibition effectiveness of zeolite ZSM-5 coating on mild steel against various organic acids and its antimicrobial activity
【24h】

Corrosion inhibition effectiveness of zeolite ZSM-5 coating on mild steel against various organic acids and its antimicrobial activity

机译：ZSM-5沸石在低碳钢上的腐蚀对多种有机酸的抑制作用及其抗菌活性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Zeolite ZSM-5 coating on mild steel had been assessed for its corrosion resistance property against organic acids, namely, acetic acid, formic acid and citric acid of varying concentrations at temperatures up to 60 °C under stagnant as well as stirred conditions by weight-loss and polarization methods. Biocidal activity of the zeolite coating against Gram-negative bacteria Escherichia coli, Pseudomonas putida, Salmonella typhi and Gram-positive bacteria Staphylococcus aureus by using minimum inhibitory concentration (MIC) was also studied. With zeolite coating, corrosion inhibition efficiency up to 98% was achieved for 6 h of duration of contact between coating and acid solutions. Similar resistance persisted for the duration of 7 days too. Results obtained showed that extent of corrosion of mild steel decreased in the order, formic acid > citric acid > acetic acid. Also as expected, corrosion resistance though only slightly, decreased with solution temperature and concentration. High anti-microbial activity was observed at very low values of MIC (100 μg/mL). In light of reported literature, the presence of the structure directing agent within the channels of the zeolite has been attributed for the high corrosion resistance as well as anti-microbial activity observed here. Thus, zeolite offers a "greener" alternate to chromium and epoxy polymers based corrosion resistance coating.
机译：已评估了在低碳钢上的沸石ZSM-5涂层对不同浓度的有机酸（即乙酸，甲酸和柠檬酸）在高达60°C的温度以及静止和搅拌条件下的耐腐蚀性（按重量计），损耗和极化方法。还通过使用最小抑菌浓度（MIC）研究了沸石涂层对革兰氏阴性菌大肠杆菌，恶臭假单胞菌，伤寒沙门氏菌和革兰氏阳性菌金黄色葡萄球菌的杀生物活性。使用沸石涂层时，涂层与酸溶液之间的接触时间为6小时，腐蚀抑制效率高达98％。类似的抵抗也持续了7天。所得结果表明，低碳钢的腐蚀程度依次降低，即甲酸>柠檬酸>乙酸。同样如预期的那样，耐腐蚀性虽然仅略有降低，但随着溶液温度和浓度的降低而降低。在极低的MIC（100μg/ mL）值下观察到了很高的抗微生物活性。根据已报道的文献，在沸石的通道内存在结构导向剂是由于此处观察到的高耐腐蚀性和抗微生物活性。因此，沸石提供了基于铬和环氧聚合物的耐腐蚀涂层的“更绿色”替代品。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号