Synthesis and properties of a new type of flocculation and corrosion inhibition dual-effect polymer

doi:10.16085/j.issn.1000-6613.2016-2305

Abstract

Abstract: With the potassium persulfate-sodium bisulfite as initiator,the copolymer(AB)was synthesized with sodium benzoate of p-acrylamide and Mannich base as monomers. The optimal synthesis conditions were determined as reaction between A and B with a molar ratio of 1.3 for 6.5 h at 80℃ using resource surface methodology. The inhibition performance of a novel copolymer(AB)for A3 steel in 20%HCl solution was investigated using polarization curves、AFM and XPS. The oil removal performances of copolymer(AB)were also investigated. The results showed that the inhibition rate was of 98.9%,with dosage of corrosion inhibitor 0.9% at 50℃,which was a mixed corrosion inhibitor mainly by restraining the anodic process. The oil removal rate of copolymer(AB) was 90.3%,under the conditions of 50 mg/L copolymer dosage,60℃ and pH=5.

Key words: Mannich base, sodium benzoate of p-acrylamide, aqueous solution radical copolymerization, corrosion inhibitor performance, oil removal

摘要： 以自制曼尼希碱（A）和对丙烯酰胺苯甲酸钠（B）为单体原料，以过硫酸钾和亚硫酸氢钠为复合引发剂，采用水溶液自由基聚合法制得聚合物（AB）；利用响应面法优化合成工艺条件，确定其最佳工艺条件为n（曼尼希碱A）：n（对丙烯酰胺苯甲酸钠B）为1.3：1，聚合时间为6.5h及聚合温度为80℃。采用Tafel极化曲线、AFM、XPS对该聚合物的缓蚀性能进行了研究，同时考察了该聚合物对油田废水的除油效果。结果表明：在50℃，聚合物的投加量为0.9%时，A3钢在20%的盐酸溶液中缓蚀剂率达到98.9%，且该聚合物为抑制阳极为主的缓蚀剂；当聚合物加入量为50mg/L、温度60℃、pH=5时，除油率达到90.3%。

关键词: 曼尼希碱, 对丙烯酰胺苯甲酸钠, 水溶液聚合法, 缓蚀性能, 除油

CLC Number:

TE685.3⁺2

WANG Botao, ZHEN Jianbin, GUO Rui, LI Xiaofang, YANG Jiangyue, WANG Chao. Synthesis and properties of a new type of flocculation and corrosion inhibition dual-effect polymer[J]. Chemical Industry and Engineering Progress, 2017, 36(11): 4216-4223.

王博涛, 甄建斌, 郭睿, 李晓芳, 杨江月, 王超. 新型絮凝-缓蚀双效高分子的合成及性能[J]. 化工进展, 2017, 36(11): 4216-4223.

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