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Anti-bacterial, icephobic, and corrosion protection potentials of superhydrophobic nanodiamond composite coating
Uzoma, Paul C.2,3,4; Wang, Qiumeng2; Zhang, Wanyu2; Gao, Ningjie2; Li, Jiwen2; Okonkwo, Paul C.5; Liu, Fuchun1,2; Han, En-Hou1,2
Corresponding AuthorLiu, Fuchun(fcliu@imr.ac.cn)
2021-12-05
Source PublicationCOLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
ISSN0927-7757
Volume630Pages:11
AbstractSuperhydrophobic nanocomposite coating was designed using nanodiamonds (NDs) and siloxane-acrylic resins via the spray coating process. The NDs coating showed a high-water contact angle of 154 degrees and a very low sliding angle of 6 degrees. After 10 cycles of icing and de-icing, the coating exhibited a delay in ice formation time and reduced ice adhesion strength (similar to 44.56 kPa) in comparison with the bare metal (similar to 77 kPa). The superhydrophobic nanocomposite coating offers excellent anti-bacterial adhesion properties; revealing a 73% decrease of Escherichia coli (E. coli) bacterial colony on the superhydrophobic NDs coated sample compared to the blank sample after 24 h of incubation. The electrochemical impedance spectroscope measurement reveals an impedance value of 106 Omega cm(2) at 4 h of immersion, signifying that the coating exhibited corrosion protection ability at the initial hours of immersion. This protective property is comparable good for a very thin coating of 10 mu m thickness. Besides, there was a minimal detachment of the coating from the substrate during the cross-cut adhesion test, and no sign of crack after the impact test indicating a good surface adhesion property.
KeywordNanodiamonds Superhydrophobic Anti-bacteria Icephobic Corrosion
Funding OrganizationSpecial Scientific Research on Civil Aircraft
DOI10.1016/j.colsurfa.2021.127532
Indexed BySCI
Language英语
Funding ProjectSpecial Scientific Research on Civil Aircraft[MJ-2016-F-07]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
WOS IDWOS:000703791500003
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166693
Collection中国科学院金属研究所
Corresponding AuthorLiu, Fuchun
Affiliation1.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
3.Zhejiang Univ, ZJU UIUC Inst, Int Campus, Jiaxing 314400, Peoples R China
4.Fed Univ Technol Owerri, Dept Polymer & Text Engn, PMB 1526, Owerri, Nigeria
5.Dhofar Univ, Coll Engn, Mech & Mechatron Engn Dept, Salalah, Oman
Recommended Citation
GB/T 7714
Uzoma, Paul C.,Wang, Qiumeng,Zhang, Wanyu,et al. Anti-bacterial, icephobic, and corrosion protection potentials of superhydrophobic nanodiamond composite coating[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2021,630:11.
APA Uzoma, Paul C..,Wang, Qiumeng.,Zhang, Wanyu.,Gao, Ningjie.,Li, Jiwen.,...&Han, En-Hou.(2021).Anti-bacterial, icephobic, and corrosion protection potentials of superhydrophobic nanodiamond composite coating.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,630,11.
MLA Uzoma, Paul C.,et al."Anti-bacterial, icephobic, and corrosion protection potentials of superhydrophobic nanodiamond composite coating".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 630(2021):11.
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