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Water-Based Approach to High-Strength All-Cellulose Material with Optical Transparency
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2017-12-04 00:00:00 , DOI: 10.1021/acssuschemeng.7b02755 Xuan Yang 1 , Lars A. Berglund 1
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2017-12-04 00:00:00 , DOI: 10.1021/acssuschemeng.7b02755 Xuan Yang 1 , Lars A. Berglund 1
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All-cellulose composites are usually prepared by a partial cellulose dissolution approach, using of ionic liquids or organic solvents. Here, an all-cellulose film based on moist ramie fibers was prepared by hot-pressing. The original ramie fiber was degummed, alkali treated, aligned, and mounted into a specially designed mold. The wet ramie fiber “cake” was pressed into a transparent film. The structure, mechanical properties, moisture sorption, and optical properties of the films were investigated using scanning electron microscopy (SEM), X-ray diffraction, tensile tests, gravimetric method, and integrating sphere devices. The all-cellulose films showed an ultimate strength of 620 MPa and a Young’s modulus of 39.7 GPa with low moisture sorption and optical transmittance of 85%. These eco-friendly all-cellulose films are of interest for laminated composites, as coatings and in photonics applications.
中文翻译：
具有光学透明性的高强度全纤维素材料的水基方法
全纤维素复合材料通常是使用离子液体或有机溶剂通过部分纤维素溶解方法制备的。在此，通过热压制备基于湿麻纤维的全纤维素膜。原始的ie麻纤维经过脱胶，碱处理，排列并安装到专门设计的模具中。将湿的ie麻纤维“饼”压成透明薄膜。使用扫描电子显微镜（SEM），X射线衍射，拉伸试验，重量法和积分球装置研究了薄膜的结构，机械性能，吸湿性和光学性能。全纤维素膜显示出620 MPa的极限强度和39.7 GPa的杨氏模量，并且低吸湿性和85％的透光率。
更新日期：2017-12-04
中文翻译：
具有光学透明性的高强度全纤维素材料的水基方法
全纤维素复合材料通常是使用离子液体或有机溶剂通过部分纤维素溶解方法制备的。在此，通过热压制备基于湿麻纤维的全纤维素膜。原始的ie麻纤维经过脱胶，碱处理，排列并安装到专门设计的模具中。将湿的ie麻纤维“饼”压成透明薄膜。使用扫描电子显微镜（SEM），X射线衍射，拉伸试验，重量法和积分球装置研究了薄膜的结构，机械性能，吸湿性和光学性能。全纤维素膜显示出620 MPa的极限强度和39.7 GPa的杨氏模量，并且低吸湿性和85％的透光率。
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