کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7105611 | 1460483 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of the sol-gel mesoporosity on the corrosion protection given by an epoxy primer applied on aluminum alloy 2024 -T3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
Silica-based sol-gel mesoporous thin films were applied on aluminum 2024 as first pretreatment surface whereas an epoxy coating was applied as top layer. Non porous and mesoporous sol-gel films were synthetized via EISA process using Pluronic P123 and F108 as templating agents. Two different kinds of alkoxy-silane mixture were compared using inorganic or hybrid precursors. The morphology, the pore size distribution of sol-gel thin films were observed by TEM, FE-SEM and measured by a quartz crystal microbalance (QCM). The anticorrosion performance and characteristics of sol-gel films were assessed by EIS measurements. The compatibility between sol-gel film and epoxy coating was studied by salt spray test and swelling in N-methylpyrrolidone. The goal of this study is to highlight the role of pretreatment porosity at the sol-gel film/organic coating interface on aluminum 2024 substrate. The higher pore size distribution of the hybrid sol-gel formulation promotes adhesion and anticorrosion performance at aluminum 2024 substrate/sol-gel film/epoxy coating interface.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Organic Coatings - Volume 121, August 2018, Pages 53-63
Journal: Progress in Organic Coatings - Volume 121, August 2018, Pages 53-63
نویسندگان
T.T. Thai, M.-E. Druart, Y. Paint, A.T. Trinh, M.-G. Olivier,