环境友好型海水缓蚀剂的研制及性能研究  

PREPARATION AND PERFORMANCE RESEARCH OF ENVIRONMENTALLY FRIENDLY CORROSION INHIBITOR OF SEAWATER

作　　者：王昕[1,2] 刘振法 高玉华[3,2] 刘展[1,2] 

机构地区：[1]河北工业大学化工学院,天津300130 [2]河北省工业节水工程技术研究中心,河北石家庄050081 [3]河北省科学院能源研究所,河北石家庄050081

出　　处：《水处理技术》2012年第8期37-39,42,共4页Technology of Water Treatment

基　　金：河北省科技支撑计划项目(11276711D);自然科学基金资助项目(B2011302001)

摘　　要：环境友好型海水缓蚀剂由聚天冬氨酸(PASP)、硫酸锌、葡萄糖酸钠与2-羟基膦酰基乙酸(HPAA)复配制得,通过正交试验确定最佳复配质量比为4:5:8:0:5。利用失重法、电化学法和扫描电镜法研究了此四元海水缓蚀剂在海水中对A3碳钢的缓蚀性能。结果表明,当海水缓蚀剂的用量为90 mg/L时,缓蚀率达到97.26%,有效抑制了碳钢在海水中的腐蚀。该海水缓蚀剂具有优良的生物降解性能,28 d的生物降解率达到85.65%。An environmentally friendly corrosion inhibitor was prepared from polyaspartic acid （PASP）, zinc sulfate, sodium gluconate and hydroxyphosphonoacetic acid （HPAA）. By means of orthogonal test, the optimum proportion was 4：5：8：0.5. The performance of corrosion inhibition and biodegradability were evaluated by rotary hanging-piece corrosion tests, steady polarization and biodegradation experiments. The corrosion testing pieces were characterized by scanning electron microscope （SEM）. The result showed that the corrosion inhibition rate reached 97.26% when the concentration of corrosion inhibitor was 90 mg/L in seawater and the efficiency of biodegradability was 85.65% in 28 d.

关 键 词：缓蚀剂 海水 碳钢 电化学法 生物降解性 

分 类 号：TQ085.412[化学工程]