کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
692287 | 1460519 | 2015 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and properties of high-solids hybrid materials obtained from epoxy functional urethanes and siloxanes
ترجمه فارسی عنوان
سنتز و خواص مواد هیبریدی با مواد جامد به دست آمده از اورتان ها و سیلوکسان های اپوکسی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
In this work series of novel high-solids crosslinked hybrid networks based on the epoxy-terminated polyurethane prepolymer and the comb-like structure co-poly(dimethyl)(methyl, 3-glycidoxypropyl)siloxane cured with diethylenetriamine, were obtained. The viscosity lowering of epoxy-terminated polyurethane prepolymer with temperature allowed for the preparation of the hybrid systems without using of any solvent. The structure of the obtained poly(urethane-siloxane) thermosets was confirmed by FT-IR spectroscopy. The DSC studies reveal, that the addition of siloxane resulted in the decrease of the glass transition temperature of the hybrid materials. The synthesized poly(urethane-siloxane) networks are hydrophobic, with the free surface energy of 17-31Â mJ/m2. An increased amount of siloxane resulted in an increase of water contact angle and decrease of degree of water absorption as well as of FSE, which confirms a hydrophobic nature of the employed siloxane. Some properties of obtained hybrid materials based coatings were also studied.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Organic Coatings - Volume 84, July 2015, Pages 59-69
Journal: Progress in Organic Coatings - Volume 84, July 2015, Pages 59-69
نویسندگان
Åukasz ByczyÅski, MichaÅ Dutkiewicz, Hieronim Maciejewski,