环保型阻垢剂环氧琥珀酸共聚物的合成及性能  

Synthesis and Properties of Epoxy Succinic Acid Copolymer as an Environmental Protection Scale Inhibitor

作　　者：贾静娴[1] 柳鑫华 李繁麟 王琳 王磊[1] JIA Jing-xian;LIU Xin-hua;LI Fan-lin;WANG Lin;WANG Lei(Department of Chemistry,Tangshan Normal University,Tangshan 063000,China;Tangshan Key Laboratory of Green Specialty Chemicals,Tangshan 063000,China)

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

出　　处：《材料保护》2020年第8期29-34,共6页Materials Protection

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)资助。

摘　　要：为了拓展绿色阻垢缓蚀剂聚环氧琥珀酸(PESA)的应用范围,以马来酸酐(MA)和2-丙烯酰胺-2-甲基丙磺酸(AMPS)为原料,过硫酸铵为引发剂合成了二元共聚物ESA/AMPS,探讨了适宜的合成条件;以静态失重法和极化曲线研究了ESA/AMPS的缓蚀性能;用扫描电镜(SEM)对CaCO3和Ca3(PO4)2垢样的晶体形貌进行了分析。结果表明:ESA/AMPS最佳合成条件为单体质量配比m(MA)∶m(AMPS)为2∶1,共聚温度和时间分别为85℃和4 h,引发剂用量为单体总质量的10%,共聚过程的pH值为5,ESA/AMPS的阻垢性能最佳;ESA/AMPS的缓蚀性能好于PESA,而且ESA/AMPS主要为抑制阳极为主的阳极型缓蚀剂;CaCO3和Ca3(PO4)2垢的形状由规整、结构紧密变为严重畸变、细小,并且形成孔洞、结构松散无定型的形貌。For expanding the application of green scale inhibitor polyepoxysuccinic acid(PESA),a binary copolymer ESA/AMPS was synthesized with maleic anhydride(MA) and 2-acrylamide-2-methyl-propylene-sulfonic acid(AMPS) as raw materials and ammonium persulfate as initiator,and the suitable synthesis conditions were explored. Meanwhile,the corrosion inhibition performance of ESA/AMPS was studied by static weight loss method and polarization curve measurement. The crystal shapes of scale samples of CaCO3 and Ca3(PO4)2 were analyzed by scanning electron microscope(SEM). Results showed that the optimal synthesis conditions were as follows: the monomer mass ratio of MA to AMPS of 2 ∶ 1,the copolymerization temperature of 85 ℃,the synthesis time of 4 h,the initiator dosage of 10% and the copolymerization p H value of 5,and the as-synthesized ESA/AMP possessed the optimal scale inhibition performance. Moreover,the corrosion inhibition performance of ESA/AMPS was better than that of PESA. ESA/AMPS belonged to a mixed corrosion inhibitor that mainly inhibited anode. Furthermore,the shapes of Ca CO3 and Ca3(PO4)2 scale changed from regular and compact structure to severely distorted and small shape,and formed the porous,loose and amorphous structure.

关 键 词：ESA/AMPS共聚物 合成 阻垢性能 缓蚀性能 

分 类 号：TG174.42[金属学及工艺—金属表面处理]