一种通过降低润湿性和提高防潮性来改性纤维素复合膜的简便方法。
A Facile Pathway to Modify Cellulose Composite Film by Reducing Wettability and Improving Barrier towards Moisture.
作者信息
Hu Xiaorong, Chen Lin, Tao Dandan, Ma Zhaocheng, Liu Shilin
机构信息
Department of Cardiology, Renmin Hospital, Wuhan University, Wuhan 430070, China.
Key Laboratory of Horticultural Plant Biology of Ministry of Education, College of Horticulture and Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China.
出版信息
Materials (Basel). 2017 Jan 5;10(1):39. doi: 10.3390/ma10010039.
The hydrophilic property of cellulose is a key limiting factor for its wide application. Here, a novel solution impregnation pathway was developed to increase the hydrophobic properties of cellulose. When compared with the regenerated cellulose (RC), the composite films showed a decrease in water uptake ability towards water vapor, and an increase of the water contact angle from 29° to 65° with increasing resin content in the composites, with only a slight change in the transmittance. Furthermore, the Young's modulus value increased from 3.2 GPa (RC film) to 5.1 GPa (RCBEA50 film). The results indicated that the composites had combined the advantages of cellulose and biphenyl A epoxy acrylate prepolymer (BEA) resin. The presented method has great potential for the preparation of biocomposites with improved properties. The overall results suggest that composite films can be used as high-performance packaging materials.
纤维素的亲水性是其广泛应用的关键限制因素。在此，开发了一种新型的溶液浸渍途径以提高纤维素的疏水性。与再生纤维素（RC）相比，复合薄膜对水蒸气的吸水能力降低，并且随着复合材料中树脂含量的增加，水接触角从29°增加到65°，而透光率仅略有变化。此外，杨氏模量值从3.2 GPa（RC薄膜）增加到5.1 GPa（RCBEA50薄膜）。结果表明，复合材料兼具纤维素和联苯A环氧丙烯酸酯预聚物（BEA）树脂的优点。所提出的方法在制备性能改进的生物复合材料方面具有巨大潜力。总体结果表明复合薄膜可作为高性能包装材料使用。
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