欢迎访问《生物质化学工程》,

生物质化学工程 ›› 2018, Vol. 52 ›› Issue (1): 17-22.doi: 10.3969/j.issn.1673-5854.2018.01.003

• 研究报告 • 上一篇    下一篇

纳米纤维素/壳聚糖/明胶复合膜的制备及其性能研究

杨旋1, 唐丽荣1,2, 林凤采1, 卢麒麟1, 黄彪1   

  1. 1. 福建农林大学 材料工程学院, 福建 福州 350002;
    2. 福建农林大学 金山学院, 福建 福州 350002
  • 收稿日期:2017-10-26 出版日期:2018-01-30 发布日期:2018-02-06
  • 通讯作者: 黄彪,教授,博士生导师,主要从事植物纤维化学和炭材料的研究;E-mail:bhuang@fafu.edu.cn。 E-mail:bhuang@fafu.edu.cn
  • 作者简介:杨旋(1994-),男,湖北襄阳人,硕士生,研究方向为生物质能源与炭材料;E-mail:fafuyxYX@163.com
  • 基金资助:
    林业公益性行业科研专项(201504603);国家自然科学基金资助项目(31370560);福建省科技厅自然科学基金(2016J01088)

Preparation and Properties of Nanocellulose/Chitosan/Gelatin Composite Films

YANG Xuan1, TANG Lirong1,2, LIN Fengcai1, LU Qilin1, HUANG Biao1   

  1. 1. College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China;
    2. Jinshan College, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2017-10-26 Online:2018-01-30 Published:2018-02-06

摘要: 以明胶(Gel)、壳聚糖(CS)、纳米纤维素(NCC)为原料,采用溶液共混法制备了不同NCC和CS质量比的纳米纤维素/壳聚糖/明胶复合膜。采用紫外-可见分光光度计、扫描电镜(SEM)、红外光谱仪(FT-IR)、X射线衍射仪(XRD)、热分析仪(TGA)和质构仪对所制备复合膜的透光性能、显微结构、化学结构、晶体结构、热学性能和力学性能进行了分析。结果表明:纳米纤维素、壳聚糖、明胶之间形成相互作用较强的网络结构。复合膜表面光滑,分散均匀,具有良好的相容性。随着纳米纤维素含量的增加,复合膜透光率呈下降的趋势。与壳聚糖膜相比,复合膜的热稳定性显著提高。当纳米纤维素与壳聚糖质量比为7:1时,复合膜拉伸强度最高可达到33 MPa,断裂伸长率可达到14.9%,吸水率最大值可达到341%。

关键词: 明胶, 壳聚糖, 纳米纤维素, 复合膜, 力学性能

Abstract: With gelatin(Gel), chitosan(CS), nanocellulose(NCC) as raw materials,the nanocellulose/chitosan/gelatin(NCC/CS/Gel) composite films with different NCC and CS mass ratios were prepared by solution blending method. The light transmittance, microstructure, chemical composition, crystal structure, thermal properties and mechanical properties of the composite films were characterized by UV-Vis spectrophotometer, scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FT-IR), X-ray diffraction(XRD), thermal analyser(TGA) and texture analyser. The results showed that the nanocellulose, chitosan and gelatin formed network structure with strong interaction. It could be seen that the composite fimls had smooth surface, uniform dispersion and good compatibility. With the increasing of NCC content, the transmittance of NCC/CS/Gel composite films decreased. Compared with CS, the light thermal stability of the composite films was remarkably improved. When the mass ratio of NCC to CS was 7:1, the tensile strength of NCC/CS/Gel composite films was up to 33 MPa, elongation at break could reach 14.9 %, the maximum water absorption rate could reach 341 %.

Key words: gelatin, chitosan, nanocellulose, composite film, mechanical properties

中图分类号: