摘要
系统总结了典型的腐蚀性微生物(细菌、真菌和微藻)的代谢特点以及典型微生物对金属腐蚀的作用机制,在此基础上着重分析了微生物代谢产生的关键组分胞外聚合物的组分结构和功能,讨论了胞外聚合物的多种用途.最后,分析和讨论了胞外聚合物在金属腐蚀过程中的促进和抑制作用以及反应机理,为后续微生物胞外聚合物导致的金属材料腐蚀与防护提供参考.
Abstract
It is well known that the widely distributed microorganisms can induce corrosion of metal-lic materials,i.e.,microbiologically influenced corrosion(MIC),which is also an important form of corro-sion.However,it is found that extracellular polymeric substances(EPS),as metabolites of microorgan-isms,play an important role in the corrosion process.In this work,the characteristics of metabolites of typical corrosive microorganisms such as bacteria,fungi,and microalgae,as well as their possible influ-ence on the corrosion of metallic materials are systematically summarized.And then,the structure and functions of EPS,the primary metabolites of microorganisms,are mainly analyzed.The possible func-tions of EPS are discussed.Finally,the acceleration or inhibition effects of EPS on the corrosion of metal-lic materials and the relevant mechanisms were analyzed too.This work aims to provide reference for the subsequent research on the corrosion of metallic materials caused by EPS and corresponding protective countermeasures as well.
基金项目
国家自然科学基金(52271083)
广东省基础与应用基础研究基金(2023A1515012146)
中央高校基本科研业务费专项(22qntd0801)
维普
万方数据