Effects of biochar nanoparticles on anticorrosive performance of zinc-rich epoxy coatings

doi:10.1016/j.porgcoat.2021.106351

	Effects of biochar nanoparticles on anticorrosive performance of zinc-rich epoxy coatings
	Li, Ziyou 1,3,4,5; Ravenni, Giulia 2; Bi, Huichao 1; Weinell, Claus Erik 1; Ulusoy, Burak 1,4,5; Zhang, Yanqiang 6,7; Dam-Johansen, Kim 1,2
刊名	PROGRESS IN ORGANIC COATINGS
	2021-09-01
卷号	158 页码:14
关键词	Biochar nanoparticles Conductivity Corrosion EIS Zinc-rich epoxy coatings
ISSN号	0300-9440
DOI	10.1016/j.porgcoat.2021.106351
英文摘要	Biochar nanoparticles (BCN) derived from spruce wood and wheat straw were prepared, characterized and incorporated into zinc-rich epoxy coatings, with the aim of improving the zinc powder utilization and the anticorrosion performance. Formulations with different BCN and commercial carbon black dosages (0.4 wt%, 0.8 wt% and 1.6 wt%) were compared to a zinc-rich epoxy paint (ZRP) without carbon addition. After immersion and salt spray exposure, coated steel panels were characterized with optical, electrochemical and spectroscopy techniques to evaluate the anticorrosive performance. BCN and carbon black addition enhanced the local electrochemical reactions and the barrier effects were promoted by an increased amount of zinc corrosion products (Zn5(OH)8Cl2 and ZnCO3). The formulation with 0.8 wt% of spruce wood BCN performed equivalently well compared to the ones with carbon black. The degraded area and rust accumulation around the artificial scribe for the formulation with 0.8 wt% of spruce wood BCN were 29.8% and 27.8% less than ZRP, respectively, which is attributed to the good electrical conductivity and high specific surface area of spruce wood char. These results suggest a promising and sustainable option for improving the anticorrosive performance of zinc-rich epoxy coatings by the incorporation of BCN.
资助项目	Hempel Foundation ; (Hempel Foundation Coatings Science and Technology Centre)
WOS关键词	ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ; SCANNING ACOUSTIC MICROSCOPY ; ELECTRICAL-CONDUCTIVITY ; CORROSION PROTECTION ; ACTIVATED CARBON ; POWDER COATINGS ; WATER-UPTAKE ; GASIFICATION ; ENERGY ; BEHAVIOR
WOS研究方向	Chemistry ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000679109300009
资助机构	Hempel Foundation ; (Hempel Foundation Coatings Science and Technology Centre)
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49508]
专题	中国科学院过程工程研究所
通讯作者	Bi, Huichao
作者单位	1.Tech Univ Denmark DTU, Dept Chem & Biochem Engn, CoaST, Bldg 229, DK-2800 Lyngby, Denmark 2.Tech Univ Denmark DTU, CHEC, Dept Chem & Biochem Engn, Bldg 229, DK-2800 Lyngby, Denmark 3.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China 4.Univ Chinese Acad Sci, Sino Danish Coll, Beijing 100049, Peoples R China 5.Univ Chinese Acad Sci, Sino Danish Ctr Educ & Res, Beijing 100049, Peoples R China 6.Chinese Acad Sci, Key Lab Sci & Technol Particle Mat, Beijing 100190, Peoples R China 7.Inst Emerging Ind Technol, Zhengzhou 450000, Peoples R China
推荐引用方式 GB/T 7714	Li, Ziyou,Ravenni, Giulia,Bi, Huichao,et al. Effects of biochar nanoparticles on anticorrosive performance of zinc-rich epoxy coatings[J]. PROGRESS IN ORGANIC COATINGS,2021,158:14.
APA	Li, Ziyou.,Ravenni, Giulia.,Bi, Huichao.,Weinell, Claus Erik.,Ulusoy, Burak.,...&Dam-Johansen, Kim.(2021).Effects of biochar nanoparticles on anticorrosive performance of zinc-rich epoxy coatings.PROGRESS IN ORGANIC COATINGS,158,14.
MLA	Li, Ziyou,et al."Effects of biochar nanoparticles on anticorrosive performance of zinc-rich epoxy coatings".PROGRESS IN ORGANIC COATINGS 158(2021):14.