کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1642048 1517228 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Laser surface structuring affects polymer deposition, coating homogeneity, and degradation rate of Mg alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Laser surface structuring affects polymer deposition, coating homogeneity, and degradation rate of Mg alloys
چکیده انگلیسی


• Coating procedure on biodegradable Mg alloy was developed.
• Laser structuring, primer and layer by layer coating consisted the system.
• Laser structuring reduced contact angle and increased biomolecule adsorption.
• Coating system reduced the degradation behaviour in pseudo physiological solution.

In the current work, a coating system consisted of a laser-structured surface, a thin layer primer and a polymeric coating to improve degradation behaviour of biocompatible and biodegradable Mg alloy is presented. The laser structuring allowed modification of surface topography as well as controlling the wettability of surface. The cellulose acetate primer provided protection from in-process degradation of samples during the successive layer-by-layer (LbL) coating process, where alternate layers of chitosan and carboxymethyl cellulose were applied. The results revealed that the laser structured surface plays an important role on the developed coating structure and final corrosion rate. Lowest corrosion rate among the coated samples (1.15 cm yr−1) was measured for the most hydrophilic laser-treated surface, corresponding to almost 16% reduction compared to the as-received samples.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 160, 1 December 2015, Pages 359–362
نویسندگان
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