Double-layer peelable coating with eminent mechanical properties and anti-permeability
Gao, Ningjie1,2; Li, Jiwen1,2; Zhang, Wanyu1,2; Ma, Lin1,2; Nwokolo, Izuchukwu Kenneth1,2; Liu, Fuchun1,2,3; Han, En-Hou1,2,3
Corresponding AuthorLiu, Fuchun(
AbstractThe inferior resistance to liquid permeation is a typical drawback of common peelable coatings, which can not only shorten their service life under the liquid environments, but also restrict their large-scale application in this field. To solve these problems, a scheme of double-layer composite coating has been proposed by incorporating two typical one-component coatings and its effect on the improvement of the anti-permeability of original peelable coating was investigated. The results revealed that the Double-Layer Peelable Coating (DLPC) exhibited an optimal comprehensive performance on both flexibility and anti-permeability, which can be applied on a variety of different substrate surfaces (such as metals, woods and glasses etc.).Then the evolution of the mechanical properties of the coatings under continuous immersion in 3.5 wt% NaCl solution was tracked by peel and tensile tests, and the anti-permeability was also monitored using electrochemical impedance spectroscopy (EIS) technology and water absorption test. The results demonstrated that although the mechanical properties and anti-permeability of both peelable coatings deteriorated with the extension of immersion time, their response trends were obviously different. The service life of the DLPC has increased by about 648 h compared with the mono-layer peelable coating. Besides, the results of resistance to acids, alkalis aqueous solutions and neutral salt spray also verified the effectiveness of double-layer composite coating.
KeywordPeelable coating Tensile properties Anti-permeability EIS Water absorption
Funding OrganizationLingChuang Research Project of China National Nuclear Corporation
Indexed BySCI
Funding ProjectLingChuang Research Project of China National Nuclear Corporation[E041F212Z1]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Applied ; Materials Science, Coatings & Films
WOS IDWOS:000703816600001
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Document Type期刊论文
Corresponding AuthorLiu, Fuchun
Affiliation1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
3.Inst Corros Sci & Technol, Guangzhou 510530, Peoples R China
Recommended Citation
GB/T 7714
Gao, Ningjie,Li, Jiwen,Zhang, Wanyu,et al. Double-layer peelable coating with eminent mechanical properties and anti-permeability[J]. PROGRESS IN ORGANIC COATINGS,2021,160:12.
APA Gao, Ningjie.,Li, Jiwen.,Zhang, Wanyu.,Ma, Lin.,Nwokolo, Izuchukwu Kenneth.,...&Han, En-Hou.(2021).Double-layer peelable coating with eminent mechanical properties and anti-permeability.PROGRESS IN ORGANIC COATINGS,160,12.
MLA Gao, Ningjie,et al."Double-layer peelable coating with eminent mechanical properties and anti-permeability".PROGRESS IN ORGANIC COATINGS 160(2021):12.
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