کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5157507 1500602 2017 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphology and properties of neutralized chitosan-cellulose nanocrystals biocomposite films
ترجمه فارسی عنوان
مورفولوژی و خواص نانو کریستالهای بیو کامپوزیت خنثی شده از کیتوزان-سلولز
کلمات کلیدی
کیتوزان، نانوکریستالهای سلولز، بیونونوکامپوزیت ها،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Chitosan/cellulose nanocrystals (CH-CN) films were obtained by casting of dispersions, and treated with NaOH for neutralization proposes. The composition of films was varied from 1 to 10 wt.% of CN. Changes in the morphology of the systems were correlated with the different properties studied. FTIR revealed the presence of a weak interaction between the polymer matrix and nanofiller, confirmed by a slightly increase in thermal stability. SEM images suggested that incorporating CN amounts higher than 3 wt.% generates phase-segregated systems, and SAXS showed that CH avoid the typical organization of CN at concentrations below 5 wt.%. Improved performance against water was obtained in composite materials comparing to the pure polymer matrix, as well as CH and CH-CN films did not show antibacterial activity demonstrating that remnant acetic acid, when no neutralization step is done, plays an important role in this property.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 156, 20 January 2017, Pages 452-459
نویسندگان
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