کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5184510 1381049 2011 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Solution spraying of poly(methyl methacrylate) blends to fabricate microtextured, superoleophobic surfaces
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Solution spraying of poly(methyl methacrylate) blends to fabricate microtextured, superoleophobic surfaces
چکیده انگلیسی

We describe a simple technique to prepare superhydrophobic and superoleophobic microtextured surfaces by spray coating a blend of poly(methyl methacrylate) (PMMA) and the low surface energy molecule 1H,1H,2H,2H-heptadecafluorodecyl polyhedral oligomeric silsesquioxane (fluorodecyl POSS, γsv ≈ 10 mN/m) using an air brush with a pressurized nitrogen stream. Scanning electron micrographs show the formation of microtextured surfaces possessing re-entrant curvature; a critical feature for obtaining liquid repellency with low surface tension liquids. The surface morphology can be tuned systematically from a corpuscular or spherical microstructure to a beads-on-string structure and finally to bundled fibers by controlling the solution concentration and molecular weight of the sprayed polymer. The oleophobicity of the resulting structures is characterized by advancing and receding contact angle measurements with liquids of a range of surface tensions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 52, Issue 14, 22 June 2011, Pages 3209-3218
نویسندگان
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