کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1383144 1500621 2016 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and properties of environmental-friendly coatings based on carboxymethyl cellulose nitrate ester & modified alkyd
ترجمه فارسی عنوان
آماده سازی و خواص پوشش های سازگار با محیط زیست بر اساس الکل کربوکسی متیل سلولز نیترات و الکل اصلاح شده
کلمات کلیدی
نیترات استر کربوکسی متیل سلولز، پوشش ها، آلکید (اصلاح شده توسط روغن نارگیل)، تعلیق آب
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی


• Hydrophilic properties of different CMCN were studied through contact angle test.
• The changing process of CMCN/alkyd hydrophilic dispersions was explained.
• Suitable CMCN for hydrophilic dispersions was determined.

Amphipathic coating basic film-forming material carboxymethyl cellulose nitrate ester (CMCN) was synthesized and characterizations of CMCN with different ratio of functional groups were studied. Ratios of functional groups on each repeating units of CMCN have great importance in the decision of CMCN properties using as an amphipathic coating basic film-forming material and ratios of functional groups were the most concerned of the study. Ratios of functional groups on each repeating units of CMCN were measured by elemental analyzer and calculated. Series of experiments were conducted using different ratios of functional groups of CMCN. Thermal properties of CMCN were measured by FT-IR and TG. Densities of CMCN powders were measured. Aqueous coatings based on CMCN/alkyd (after chemical modified by coconut oil) were prepared and morphology & rheology of CMCN hydrophilic dispersions were measured using an Anton-Paar-Strasse 20A-8054 Graz analyzer. Contact angles between films based on CMCN and deionized water were recorded. Other properties of films were measured. CMCN with the etherification of carboxymethyl groups at 0.35–0.40, nitrate ester groups at 1.96–2.19 and hydroxyl groups at 0.46–0.64 per d-glucose was considered as the best film forming material.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 137, 10 February 2016, Pages 92–99
نویسندگان
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