کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
683893 889008 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Starch composites reinforced by bamboo cellulosic crystals
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Starch composites reinforced by bamboo cellulosic crystals
چکیده انگلیسی

Using a method of combined HNO3–KClO3 treatment and sulfuric acid hydrolysis, bamboo cellulose crystals (BCCs) were prepared and used to reinforce glycerol plasticized starch. The structure and morphology of BCCs were investigated using X-ray diffraction, electron microscopy, and solid-state 13C NMR. Results showed that BCCs were of typical cellulose I structure, and the morphology was dependent on its concentration in the suspension. BCC of 50–100 nm were assembled into leaf nervations at low concentration (i.e. 0.1 wt.% of solids), but congregated into a micro-sized “flower” geometry at high concentration (i.e. 10.0 wt.% of solids). Tensile strength and Young’s modulus of the starch/BCC composite films (SBC) were enhanced by the incorporation of the crystals due to reinforcement of BCCs and reduction of water uptake. BCCs at the optimal 8% loading level exhibited a higher reinforcing efficiency for plasticized starch plastic than any other loading level.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 101, Issue 7, April 2010, Pages 2529–2536
نویسندگان
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