Rust Conversion Performance of Phosphoric Acid-Gallic Acid in Vinyl Chloride Acrylic Emulsion

doi:10.3390/coatings11020152

	Rust Conversion Performance of Phosphoric Acid-Gallic Acid in Vinyl Chloride Acrylic Emulsion
	Wang, Xin 1,2,3,4; Zhu, Qingjun 1,2,3,4; Liu, Xiangju1,3,4 ; Hou, Baorong 1,2,3,4
	2021-02-01
发表期刊	COATINGS
卷号	11 期号:2 页码:14
通讯作者	Zhu, Qingjun([email protected]) ; Hou, Baorong([email protected])
摘要	This work studied the application of phosphoric acid-gallic acid in vinyl chloride acrylic emulsion and its rust conversion performance. The increase of phosphoric acid affected the stability of the system, leading to the rapid precipitation of flocculent precipitation. Rust conversion coating (RCC) showed the best synergistic conversion effect when gallic acid (GA) was 0.2 wt.% and phosphoric acid (PA) was 2 wt.%. XRD and FTIR analysis show that the components of adherent rust (AR) are alpha-FeOOH, gamma-FeOOH and Fe3O4. The conversion products are ferric phosphate (FP) and ferric gallate (FG). The RCC can effectively treat the rusted steel (RS) produced by simulated marine atmospheric corrosion. The corrosion current density was reduced by three orders of magnitude, the adhesion reached 2.75 MPa, and the salt spray corrosion resistance was 20 days. The results of Raman, XPS, SEM and EDS show that the ionic dissolution of iron, complexation and further oxidation reactions occur at the interface between the adherent rust and the RCC. After rust conversion treatment, unreacted rust (UR) affects the further improvement of adhesion strength and anti-corrosion performance.
关键词	rust conversion coating anticorrosion gallic acid acrylic emulsion rust converter
DOI	10.3390/coatings11020152
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[41827805]; Shandong Provincial Natural Science Foundation[ZR2020MD080]
WOS研究方向	Materials Science ; Physics
WOS类目	Materials Science, Multidisciplinary ; Materials Science, Coatings & Films ; Physics, Applied
WOS记录号	WOS:000622364600001
出版者	MDPI
引用统计	被引频次：4[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/169595
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Zhu, Qingjun; Hou, Baorong
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Marine Corros & Protect, Qingdao 266237, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Wang, Xin,Zhu, Qingjun,Liu, Xiangju,et al. Rust Conversion Performance of Phosphoric Acid-Gallic Acid in Vinyl Chloride Acrylic Emulsion[J]. COATINGS,2021,11(2):14.
APA	Wang, Xin,Zhu, Qingjun,Liu, Xiangju,&Hou, Baorong.(2021).Rust Conversion Performance of Phosphoric Acid-Gallic Acid in Vinyl Chloride Acrylic Emulsion.COATINGS,11(2),14.
MLA	Wang, Xin,et al."Rust Conversion Performance of Phosphoric Acid-Gallic Acid in Vinyl Chloride Acrylic Emulsion".COATINGS 11.2(2021):14.

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coatings-11-00152-v2（4890KB）	期刊论文	出版稿	限制开放	CC BY-NC-SA	浏览