Study on corrosion and scale inhibition mechanism of polyaspartic acid grafted β-cyclodextrin

被引：31
|
作者：
Fu, Luoping [1 ]
Lv, Jie [1 ]
Zhou, Lu [3 ]
Li, Zhida [4 ]
Tang, Mingjin [1 ,2 ]
Li, Jianbo [1 ]
机构：
[1] Southwest Petr Univ, Sch Chem & Chem Engn, Chengdu 610500, Peoples R China
[2] Sichuan Univ, Coll Chem, Natl Engn Lab Ecofriendly Polymer Mat Sichuan, State Key Lab Polymer Mat Engn,Collaborat Innovat, Chengdu 610064, Peoples R China
[3] CNPC SichuanChangqing United Drilling & Explorat, Safety Environm Qual Supervis & Testing Res Inst, Guanghan 618300, Peoples R China
[4] Univ Adelaide, Fac Engn Comp & Math Sci, Adelaide, SA 5005, Australia
来源：
MATERIALS LETTERS | 2020年 / 264卷
关键词：
beta-Cyclodextrin; Oilfield corrosion inhibition; Corrosion; Organic;
D O I：
10.1016/j.matlet.2019.127276
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, polyaspartic acid graft copolymer (PASP/beta-CD) was synthesized by beta-cyclodextrin intermediate and polysuccinimide (PSI). The corrosion inhibition efficiency of PASP/beta-CD on N80 carbon steel in brine were evaluated by weight loss measurements, electrochemical methods, atomic absorption spectrophotometry (AAS), surface analysis (SEM and EDS) and corrosion products analysis (XRD). The results showed that the PASP/beta-CD was a mixed-type corrosion inhibitor. At 60, the corrosion inhibition efficiency in simulated oilfield water reached 68.4% at 800 mg/L. (C) 2019 Elsevier B.V. All rights reserved.
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页数：4
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