除盐水中聚脲涂层有机溶出物的检测及控制建议  

Detection of Organic Dissolves of Polyurea Anticorrosive Coating in Demineralized Water and Controlling Suggestion

作　　者：星成霞[1] 张赞 胡远翔 胡齐欣 XING Chengxia;ZHANG Zan;HU Yuanxiang;HU Qixin(North China Electric Power Research Institute,Beijing 100045,China)

机构地区：[1]华北电力科学研究院有限责任公司,北京100045

出　　处：《聚氨酯工业》2025年第2期45-48,共4页Polyurethane Industry

摘　　要：近年来,电厂除盐水箱内壁聚脲防腐涂层溶出导致的水箱出水电导率和有机物超标现象仍有存在.对聚脲涂层试片在除盐水中有机溶出物的溶出量(以TOC计)进行测定的基础上,采用傅里叶变换-红外光谱、核磁氢谱以及气相色谱-质谱法对试片浸泡液中的有机物组分进行了筛查检测,用电感耦合等离子发射光谱法对元素含量进行了测定,分析确定了溶出物在涂层原料组分中的来源,从原材料角度提出了降低除盐水箱内壁聚脲防腐涂层溶出物的建议措施.In recent years,due to the dissolution of polyurea anticorrosive coating in the demineralized water tank of power plant,the phenomenon of excessive conductivity and organic matter content in the effluent water of the tank still exist.On the base of the determination of organic leachables content(measured in TOC)of the polyurea coating test blocks in demineralized water,organic compounds of the soak solution of test blocks were screened and detected by FT-IR,NMR and GC-MS,elements were determined by the ICP-OES.The source of the dissovlates in the coating material components were determined and analysized,the measures to reduce the dissolution of the coating were proposed.

关 键 词：聚脲 除盐水 有机溶出物 检测 来源分析 控制措施 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]