کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
693264 1460530 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study of the effect of nanoclay incorporation on the rheological properties and corrosion protection by a silane layer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Study of the effect of nanoclay incorporation on the rheological properties and corrosion protection by a silane layer
چکیده انگلیسی

The corrosion protection properties offered to galvanized steel by an aqueous based silane layer are studied after incorporation of different amounts of sodium montmorillonite nanoclays (Na MMT). The rheological behaviour of Na+ nanoclays in aqueous suspensions was determined in order to select the appropriate sonication time and concentration for incorporation in the silane matrix. The effect of sonication on the disaggregation/exfoliation of platelets was evaluated by using different characterization methods such as using the methylene blue (MB) dye as a spectrophotometric probe (UV–vis), zeta potential and hydrodynamic diameter measurements.The corrosion protection conferred to galvanized steel substrate by the modified silane layer was evaluated by electrochemical impedance spectroscopy (EIS) in 0.1 M aerated sodium chloride solution. The barrier properties of the silane layer are significantly increased by addition of 2 wt.% of clay sonicated for 1 and 2 h.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Organic Coatings - Volume 72, Issues 1–2, September–October 2011, Pages 15–20
نویسندگان
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