从微晶纤维素中制备纳米纤维素：对琼脂基复合膜性能和特性的影响。
Preparation of nanocellulose from micro-crystalline cellulose: The effect on the performance and properties of agar-based composite films.
机构信息
Department of Food Engineering and Bionanocomposite Research Institute, Mokpo National University, 61 Dorimri, Chungkyemyon, Muangun, 534729 Jeonnam, Republic of Korea.
Department of Food Engineering and Bionanocomposite Research Institute, Mokpo National University, 61 Dorimri, Chungkyemyon, Muangun, 534729 Jeonnam, Republic of Korea.
出版信息
Carbohydr Polym. 2016 Jan 1;135:18-26. doi: 10.1016/j.carbpol.2015.08.082. Epub 2015 Aug 29.
A facile approach has been performed to prepare nanocellulose (NC) from micro-crystalline cellulose (MCC) and test their effect on the performance properties of agar-based composite films. The NC was characterized by STEM, XRD, FTIR, and TGA. The NC was well dispersed in distilled water after sonication and their size was in the range of 100-500nm. The XRD results revealed the crystallinity of NC. The crystallinity index of NC (0.71) was decreased compared to the MCC (0.81). The effect of NC or MCC content (1, 3, 5 and 10wt% based on agar) on the mechanical, water vapor permeability (WVP), and thermal properties of the composites were studied. The NC obtained from MCC can be used as a reinforcing agent for the preparation of biodegradable composites films for their potential use in the development of biodegradable food packaging materials.
一种简便的方法是从微晶纤维素（MCC）制备纳米纤维素（NC），并测试其对琼脂基复合膜性能的影响。NC 通过 STEM、XRD、FTIR 和 TGA 进行了表征。超声处理后，NC 在蒸馏水中很好地分散，其尺寸在 100-500nm 范围内。XRD 结果表明 NC 的结晶度。与 MCC（0.81）相比，NC 的结晶度指数（0.71）降低。研究了 NC 或 MCC 含量（基于琼脂的 1、3、5 和 10wt%）对复合材料力学性能、水蒸气透过性（WVP）和热性能的影响。从 MCC 获得的 NC 可用作制备可生物降解复合材料薄膜的增强剂，用于开发可生物降解的食品包装材料。
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