微生物胞外聚合物(EPS)对金属腐蚀具有抑制作用,研究了EPS中的主要成分蛋白质和多糖对碳钢、铸铁、黄铜和304不锈钢腐蚀速率的影响,并以此为基础,开展了蛋白质、多糖抑制碳钢腐蚀的单因素试验以及正交试验.结果表明:单因素作用下,蛋白质或多糖的质量浓度为1.0 mg/mL时,碳钢的腐蚀速率最低;多因素作用下,多糖加入量为0.7 mg/mL、蛋白质加入量为0.7mg/mL、浸涂时间为36 h时,碳钢的腐蚀抑制效果最佳.研究结果可以为金属防护领域研发新型防腐蚀涂料提供技术支持.
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