کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7789035 | 1500635 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improving surface and mechanical properties of alginate films by using ethanol as a co-solvent during external gelation
ترجمه فارسی عنوان
بهبود خواص سطح و خواص مکانیکی آلژینات فیلم با استفاده از اتانول به عنوان یک هم حلال در هنگام ژل کردن خارجی
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کلمات کلیدی
آلژینات، ژئوتکستایل خارجی، کلسیم، فیلم، اتانول،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Alginate films were prepared by solution casting method and further ionically crosslinked in a calcium chloride (CaCl2) water solution containing different proportions (0-40% v/v) of ethanol as the co-solvent. The addition of ethanol into the CaCl2 water solution was found to improve the visual appearance, thickness, surface homogeneity, and mechanical properties of the films, which can be attributed to the reduced swelling degree of films during crosslinking process. Furthermore, Fourier transform infrared spectroscopy (FTIR) and energy dispersive spectroscopy (EDS) analysis indicated that the incorporation of ethanol into the crosslinking solution did not detract from the uniformity of crosslinking throughout the film matrix. However, the swelling degree and calcium content determination indicated that the Ca2+ crosslinking degree decreased when the ethanol proportion exceeded 30% v/v. Consequently, this study introduces a green, efficient, and simple technique for the preparation of calcium alginate films with excellent surface appearance and mechanical properties for pharmaceutical products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 123, 5 June 2015, Pages 208-216
Journal: Carbohydrate Polymers - Volume 123, 5 June 2015, Pages 208-216
نویسندگان
Jiwei Li, Jinmei He, Yudong Huang, Dalong Li, Xiaotong Chen,