Preparation of transparent nanocomposites from UV- and thermo-curable epoxyacrylate and graphene oxide for the application of corrosion protection coatings
學年 107
學期 2
出版（發表）日期 2019-07-17
作品名稱 Preparation of transparent nanocomposites from UV- and thermo-curable epoxyacrylate and graphene oxide for the application of corrosion protection coatings
作品名稱（其他語言）
著者 Cian-Fan Syu; Yen-Ting Lin; Yih-Chang Yeh; Trong-Ming Don
單位
出版者
著錄名稱、卷期、頁數 Polymer International 68(10), p.1804-1816
摘要 In this study, we report UV‐ and thermo‐curable epoxyacrylate/graphene oxide (EA/GO) nanocomposites that present good transparency, excellent pencil hardness and promising improvement in corrosion protection. A dual‐curable EA oligomer with one terminal epoxide and one double bond at the other end was synthesized by reaction of diglycidyl ether of bisphenol‐A and acrylic acid. After mixing EA and GO with the curing agents and reactive diluent followed by UV cure and thermo‐cure, the resulting EA/GO films on a glass slide with GO loading up to 3 phr exhibited over 86% light transmittance. Furthermore, the pencil hardness was enhanced from 3H for EA to 6H for the EA/GO composite at 2 phr GO loading. The corrosion protection of the EA/GO coatings was evaluated by a potentiodynamic polarization technique and electrochemical impedance spectra. The corrosion potential (Ecorr) of the EA/GO‐coated steel increased with increasing GO loading. Meanwhile, Nyquist and Bode plots indicated that the higher the GO content in the EA/GO coating was, the higher was the coating resistance and also the charge transfer resistance after immersion in salt solution. All these results proved that the GO had positive effects on enhancement of the corrosion resistance. The improved corrosion protection by the EA/GO coatings was mainly due to the enhanced hydrophobicity, the deviation of electron transfer and the increased tortuosity of the diffusion path. The improved corrosion protection and hardness together with the useful dual‐curability make the EA/GO nanocomposite a competitive candidate for corrosion protection coatings. © 2019 Society of Chemical Industry
關鍵字 epoxyacrylate;graphene oxide;corrosion protection hardness;transparency
語言 en_US
ISSN 0959-8103
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Trong-Ming Don
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版,紙本
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