کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10149744 | 1646765 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Strengthening effects of carboxymethylated hemicellulosic fractions on paper strength
ترجمه فارسی عنوان
اثرات تقویت فریک کربوکسی متیل شده همی سلولزی بر قدرت کاغذ
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
همی سلولز، کربوکسی متیل شدن، کاغذ بازیافت شده، قدرت کاغذ،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
چکیده انگلیسی
Although hemicelluloses have demonstrated their promising application as paper strengthening agents, the influences of different hemicellulosic fractions on the mechanical properties of paper are not clear. Revealing the reinforcing effect of hemicellulosic fractions on the mechanical properties of paper is very helpful to better utilize hemicelluloses. For this purpose, four hemicellulosic fractions (HCpH5.5, HC15%, HC30%, and HC75%) were extracted from corncob, and then chemically modified (carboxymethylation) as paper strengthening agents. We demonstrated that the hemicellulosic fraction HC15% obtained from 15% ethanol was difficult to be modified; while HC75% obtained from 75% ethanol was more easily chemically modified. Furthermore, the carboxymethylated hemicellulosic fraction CHC30% with fewer branches and the highest molecular weight had a more significant effect on improving paper strength. Therefore, isolation of desirable hemicellulosic fraction is extremely important to more effectively apply hemicelluloses as paper strengthening agents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 125, 1 December 2018, Pages 360-369
Journal: Industrial Crops and Products - Volume 125, 1 December 2018, Pages 360-369
نویسندگان
Yushuang Zhao, Shuangshuang Jing, Xiaoting Zhang, Zehong Chen, Hao Zhuo, Yijie Hu, Qingzhong Liu, Linxin Zhong, Xinwen Peng, Runcang Sun,