کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7789779 | 1500641 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fabrication of cellulose self-assemblies and high-strength ordered cellulose films
ترجمه فارسی عنوان
تولید سازه های سلولزی و فیلم های سلولزی با قدرت بالا
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کلمات کلیدی
سلولز، خودمجموعه، فیلم سلولز سفارش ساختار، قدرت بالا،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Based on the formation of cellulose hydrogels in NaOH/urea aqueous solvent media, cellulose self-assembly precursor is acquired. It is proved that the water uptake capability of the cellulose hydrogels depends highly on the cross-link degree (CLD) of cellulose. With varying CLD and concentration of cellulose, a variety of morphologies of cellulose self-assemblies, including sheets with perfect morphology, high-aspect-ratio fibers, and disorganized segments and network, are formed through evaporation. Furthermore, cellulose films are fabricated by diecasting and evaporating the cellulose hydrogels, resulting in a 3D-ordered structure of closely stacking of cellulose sheets. The mechanical test indicates both tensile strength and flexibility of the cellulose films are greatly improved, which is attributed to the formation of the orderly stacking of cellulose sheets. The study is expected to lay an important foundation on the preparation of ordered and high-strength cellulose materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 117, 6 March 2015, Pages 414-421
Journal: Carbohydrate Polymers - Volume 117, 6 March 2015, Pages 414-421
نویسندگان
Zaiwu Yuan, Jingjing Zhang, Anning Jiang, Wenting Lv, Yuewen Wang, Hongjuan Geng, Jin Wang, Menghua Qin,