Microencapsulation technology for thiourea corrosion inhibitor

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	Microencapsulation technology for thiourea corrosion inhibitor
	F. Kuang; T. H. Shi; J. Wang; F. Jia
	2009
发表期刊	Journal of Solid State Electrochemistry
ISSN	1432-8488
卷号	13 期号:11 页码:1729-1735
摘要	The microencapsulation technology was brought in to solidify corrosion inhibitor in order to prolong the releasing time of it. In this work, thiourea (H(2)NCSNH(2)) was used as a corrosion inhibitor and microcapsuled using glutin and polyvinyl alcohol (PVA), respectively, as protective agent. The re-sealing process was used as a way to prolong the releasing time of the H(2)NCSNH(2) encapsulated in microcapsules. It was found that the H(2)NCSNH(2) microcapsule corrosion inhibitor using PVA as a protective agent had a better releasing time. The releasing times of the H(2)NCSNH(2) microcapsule corrosion inhibitors were prolonged from 18 to 48 h by re-sealing process and using PVA as a protective agent. Both the use of PVA as a protective agent and the application of the re-sealing process decreased the encapsulation efficiency of the H(2)NCSNH(2). The performance parameters on protecting Q235 carbon steel from corrosion in 0.1-M H(2)SO(4) solution were evaluated by polarization curve and electrochemical impedance spectra methods. The results showed that the H(2)NCSNH(2) released into the solution from microcapsules could well protect Q235 carbon steel from corrosion and the corrosion-inhibiting mechanisms of it were the same as that of H(2)NCSNH(2).
部门归属	[kuang, fei; shi, taihe] sw petr univ, state key lab oil & gas reservoir geol & exploita, chengdu 610500, peoples r china. [wang, jia] ocean univ china, qingdao 266100, peoples r china. [wang, jia] state key lab corros & protect, shenyang 110015, peoples r china. [jia, fang] cangzhou entry exit inspect & quarantine bure, cangzhou 061000, peoples r china.;kuang, f (reprint author), sw petr univ, state key lab oil & gas reservoir geol & exploita, 8 xindu rd, chengdu 610500, peoples r china;feikuang@yahoo.cn jwang@mail.ouc.edu.cn
关键词	Microencapsulation Technology Corrosion Uv Spectrophotometric Method Electrochemical Impedance Spectra Polarization Curve Carbon-steel 3-percent Nacl Mild-steel In-vitro Release Encapsulation Acid Microparticles Microcapsules Derivatives
URL	查看原文
WOS记录号	WOS:000269423500015
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32006
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Kuang,T. H. Shi,J. Wang,et al. Microencapsulation technology for thiourea corrosion inhibitor[J]. Journal of Solid State Electrochemistry,2009,13(11):1729-1735.
APA	F. Kuang,T. H. Shi,J. Wang,&F. Jia.(2009).Microencapsulation technology for thiourea corrosion inhibitor.Journal of Solid State Electrochemistry,13(11),1729-1735.
MLA	F. Kuang,et al."Microencapsulation technology for thiourea corrosion inhibitor".Journal of Solid State Electrochemistry 13.11(2009):1729-1735.