کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7792896 | 1500656 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cross-linkage effect of cellulose/laponite hybrids in aqueous dispersions and solid films
ترجمه فارسی عنوان
اثر متقابل هیبرید های سلولز / لپتونیت در پراکندگی های آبی و فیلم های جامد
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کلمات کلیدی
راه حل های آبی سلولز، لاپونیت، فیلم کامپوزیت پیوند صلیب، تقویت،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Homogenous cellulose/laponite aqueous dispersions and composite films were respectively prepared from the pre-cooling NaOH/urea aqueous systems. Rheological measurements of aqueous dispersions demonstrated a sol-to-gel transition triggered by loading of laponite, reflecting a cross-linkage effect of cellulose/laponite hybrids. Similarly, based on scanning electron microscopy (SEM), Fourier-transform infrared (FTIR) spectroscopy, and X-ray diffraction (XRD) characterizations, as well as mechanical and thermal measurements, the cross-linkage effect of cellulose/laponite hybrids was also found in solid films, which played an important role in improving the tensile strength (Ïb) of composite films. For instance, the Ïb exhibited a largest enhancement up to 75.7% at a critical laponite content of 0.100Â wt%, indicating that the property of composite film was closely related with the dispersion and interaction state of laponite, i.e. its content in cellulose matrix. These results were expected to provide significant information for fabrication and utility of cellulose-based materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 102, 15 February 2014, Pages 431-437
Journal: Carbohydrate Polymers - Volume 102, 15 February 2014, Pages 431-437
نویسندگان
Zaiwu Yuan, Qingrui Fan, Xiaonan Dai, Chao Zhao, Aijie Lv, Jingjing Zhang, Guiying Xu, Menghua Qin,