CAS OpenIR
Effects of biochar nanoparticles on anticorrosive performance of zinc-rich epoxy coatings
Li, Ziyou1,3,4,5; Ravenni, Giulia2; Bi, Huichao1; Weinell, Claus Erik1; Ulusoy, Burak1,4,5; Zhang, Yanqiang6,7; Dam-Johansen, Kim1,2
2021-09-01
Source PublicationPROGRESS IN ORGANIC COATINGS
ISSN0300-9440
Volume158Pages:14
AbstractBiochar 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.
KeywordBiochar nanoparticles Conductivity Corrosion EIS Zinc-rich epoxy coatings
DOI10.1016/j.porgcoat.2021.106351
Language英语
WOS KeywordELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ; SCANNING ACOUSTIC MICROSCOPY ; ELECTRICAL-CONDUCTIVITY ; CORROSION PROTECTION ; ACTIVATED CARBON ; POWDER COATINGS ; WATER-UPTAKE ; GASIFICATION ; ENERGY ; BEHAVIOR
Funding ProjectHempel Foundation ; (Hempel Foundation Coatings Science and Technology Centre)
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Applied ; Materials Science, Coatings & Films
Funding OrganizationHempel Foundation ; (Hempel Foundation Coatings Science and Technology Centre)
WOS IDWOS:000679109300009
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49509
Collection中国科学院过程工程研究所
Corresponding AuthorBi, Huichao
Affiliation1.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
Recommended Citation
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.
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