聚环氧琥珀酸衍生物及复合配方在天然海水中阻垢缓蚀性能的研究  

Study on Scale and Corrosion Inhibition Properties of Polyepoxy-succinic Acid Derivatives and Composite Formulas in Natural Seawater

作　　者：贾静娴[1] 柳鑫华 王丽红[1] 付占达 魏金芳[1] 王鹏飞 王磊[1] 赵腾达 JIA Jing-xian;LIU Xin-hua;WANG Li-hong;FU Zhan-da;WEI Jin-fang;WANG Peng-fei;WANG Lei;ZHAO Teng-da(Department of Chemistry,Tangshan Normal University,Tangshan 063000,China;Tangshan Key Laboratory of Green Specialty Chemicals,Tangshan Normal University,Tangshan 063000,China)

机构地区：[1]唐山师范学院化学系,河北唐山063000 [2]唐山师范学院唐山市绿色专用化学品重点实验室,河北唐山063000

出　　处：《表面技术》2021年第12期390-399,共10页Surface Technology

基　　金：河北省钢铁联合自然基金(B2017209228);唐山师范学院博士基金(2018A04)。

摘　　要：目的为提高聚环氧琥珀酸(PESA)的阻垢缓蚀综合性能,拓展其应用范围,将2-氨基乙磺酸(SEA)引入PESA分子中,合成聚环氧琥珀酸衍生物(SEA-PESA)并应用于海水环境。方法将PESA和SEA缩合制备了SEA-PESA,用傅里叶红外光谱和核磁氢谱表征其结构。研究了SEA-PESA及其四元复合配方在天然海水中的缓蚀和阻垢等综合性能。结果在海水环境中,SEA-PESA质量浓度为160mg/L,对Q235钢片的缓蚀率为61.82%,而PESA仅为52.17%。PESA和SEA-PESA的四元复合配方的缓蚀率分别高达88.87%、96.99%,腐蚀速率分别为0.065 52、0.017 72 mm/a,SEA-PESA四元复合配方缓蚀效果明显优于PESA,更好地契合了国标的要求。SEA-PESA四元复合配方以抑制阳极为主,是一种阳极型缓蚀剂;在海水中也表现出良好的阻垢性能,在10mg/L用量下阻垢率达100%。结论本研究证实了SEA-PESA用于冷却系统和热脱盐工艺过程中,特别是海水环境中抑制腐蚀和结垢方面的潜能,应用前景广阔。In order to improve the comprehensive scale and corrosion inhibition performance of polyepoxysuccinic acid(PESA) and expand its application range,2-aminoethylsulfonic acid(SEA) was introduced into PESA molecule to synthesize a polyepoxysuccinic acid derivative(SEA-PESA) and applied in seawater environment.SEA-PESA was synthesized by condensation of PESA and SEA,and the structure of SEA-PESA was characterized by Fourier-infrared spectroscopy and 1 HNMR.Comprehensive property of scale and corrosion inhibition were studied on SEA-PESA and its quaternary formulation in natural seawater.In seawater environment,when SEA-PESA concentration is 160 mg/L,and the corrosion inhibition efficiencies of Q235 carbon steel is 61.82%,while that of PESA is only 52.17%.The corrosion inhibition rates of the quaternary formulations of PESA and SEA-PESA were 88.87% and 96.99%,respectively,and the corrosion rates were 0.06 552 mm/a and 0.017 72 mm/a.The corrosion inhibition effect of the quaternary formulations of SEA-PESA was better than PESA’s,which better met the requirements of national standards.SEA-PESA quaternary formulation is an anodic corrosion inhibitor,which mainly inhibits the anode.It also showed good scale inhibition performance in seawater,and the scale inhibition rate reached 100% at the dosage of 10 mg/L.This study confirmed the potential of SEA-PESA for corrosion inhibition and scaling inhibition in cooling systems and thermal desalination processes,especially in seawater environment,and has a broad application prospect.

关 键 词：海水 2-氨基乙磺酸 聚环氧琥珀酸衍生物 缓蚀剂 阻垢缓蚀机理 

分 类 号：TG174.42[金属学及工艺—金属表面处理]