کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1387411 982580 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of enzymatic treatment on cotton fiber dissolution in NaOH/urea solution at cold temperature
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Effect of enzymatic treatment on cotton fiber dissolution in NaOH/urea solution at cold temperature
چکیده انگلیسی

In this communication, the dissolution behavior of enzyme pretreated cotton fibers in NaOH/urea solution is reported. The experimental results indicated that although the crystallinity of cotton linter almost did not change during the enzymatic pretreatment, the solubility of cellulose in cold NaOH/urea solution increased from 30% for original cotton fibers to 65% for enzymatic treated fibers, which was mainly attributed to the reduction of cellulose’s molecular weight by the enzymatic treatment. Moreover, the dissolution time was also greatly shortened by the enzymatic pretreatment. The results suggest that the effect of crystallinity of the cellulose on the cellulose dissolution in NaOH/urea solution is much less than that of molecular weight. It was found that the temperature plays a dominating role to the cellulose fiber solubility in NaOH/urea solution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 72, Issue 1, 3 April 2008, Pages 178–184
نویسندگان
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