کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5350507 1503553 2017 27 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Anti-adhesive layers on stainless steel using thermally stable dipodal perfluoroalkyl silanes
ترجمه فارسی عنوان
لایه های ضد چسب بر روی فولاد ضد زنگ با استفاده از پرفور فلوراکتیلان سیلیکات دوامدار مقاوم در برابر حرارت
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
چکیده انگلیسی
In this study steel surfaces are modified with dipodal perfluoroalkyl organosilanes and the resulting wetting properties and surface morphologies are analyzed. Dipodal silane monomers with different fluoroalkyl spacer lengths are synthesized via hydrosilylation reaction. The modification of stainless steel surfaces is performed in a two-step procedure comprising a corona activation of the steel surface and the subsequent reaction of surface hydroxyl groups with the dipodal silanes from the liquid phase. Anti-adhesive behavior on the surface is achieved through the modification. The attachment of the dipodal silanes on the stainless steel surface is validated with infrared reflection absorption spectroscopy and X-ray photoelectron spectroscopy. The wetting properties of the dipodal silane layers are investigated by contact angle measurements and adhesive force measurements. Atomic force microscopy is used to characterize the surface roughness and morphologies. Stainless steel modified with the dipodal perfluoroalkyl silanes exhibits low surface energy and low adhesive force compared to the unmodified steel surface. The thermal stability of coatings based on dipodal silanes is higher when compared to layers based on conventional monopodal organosilanes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 416, 15 September 2017, Pages 824-833
نویسندگان
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