石墨烯/聚氨酯脲多孔薄膜耐腐蚀性能研究  

Study on the Corrosion Resistance of Graphene/Polyurethane-Urea Porous Films

作　　者：李奕宽 崔旭 LI Yikuan;CUI Xu

机构地区：[1]沈阳航空航天大学民用航空学院,辽宁沈阳110136

出　　处：《化工设计通讯》2024年第2期21-23,共3页Chemical Engineering Design Communications

摘　　要：制备了聚氨酯脲弹性体,添加石墨烯,通过浸没沉淀相转化法制备了石墨烯/聚氨酯脲多孔薄膜。研究了4%,5%,6%石墨烯/聚氨酯脲多孔薄膜在酸,碱,盐中的电化学腐蚀行为,使用CHI660E电化学工作站得到在不同环境下的极化曲线,并对其极化行为进行分析。研究表明:通过添加石墨烯,耐腐蚀性能提升,达到一定阈值后,耐腐蚀性能下降;在盐和碱中极化曲线只有一个峰存在,而在酸中有两个峰存在;在酸中的耐腐蚀性最好,盐溶液中次之,碱溶液中最差。This paper prepared polyurethane urea elastomer,added graphene,and prepared graphene/polyurethane urea porousfilm through immersion precipitation phase inversion method.The electrochemical corrosion behavior of 4%,5%,and 6%graphene/polyurethane urea porous films in acid,alkali,and salt was studied.The CHI660E electrochemical workstation was used to obtain the polarization curves in different environments and polarize them.Behavior analysis.Studies have shown that by adding graphene,the corrosion resistance is improved.After reaching a certain threshold,the corrosion resistance decreases;only one peak exists in the polarization curve in salt and alkali,while there are two peaks in acid;in acid The corrosion resistance is the best,followed by salt solution and worst by alkali solution.

关 键 词：聚氨酯脲 浸没沉淀相转化法 多孔薄膜 电化学腐蚀 极化曲线 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]