Paper Title:
Effect of Drying Methods on Structure and Mechanical Properties of Bacterial Cellulose Films
  Abstract

Bacterial cellulose (BC) gelatinous films prepared in stationary culture were dried by three different drying methods: hot air drying, vacuum drying and vacuum freezing drying. The structure of dried bacterial cellulose films was characterized using scanning electron microscopy (SEM), infrared spectroscopy (IR) and X-ray diffraction (XRD), and mechanical properties were tested. The results showed that the surface of films prepared by hot air drying were uniform and dense, cavities and cracks configurations existed in vacuum dried films, and layer and porous structures were observed in vacuum freezing dried films. FTIR spectra and X-ray pattern confirmed that vacuum freezing drying reduced the strength of hydrogen bonds between cellulose macromolecules and the degree of crystallinity of BC films but had little influence on the crystal structure. For those reasons, mechanical properties of BC films prepared by vacuum freezing drying were lower than that of those films by other methods.

  Info
Periodical
Advanced Materials Research (Volumes 239-242)
Edited by
Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He
Pages
2667-2670
DOI
10.4028/www.scientific.net/AMR.239-242.2667
Citation
C. J. Zhang, L. Wang, J. C. Zhao, P. Zhu, "Effect of Drying Methods on Structure and Mechanical Properties of Bacterial Cellulose Films", Advanced Materials Research, Vols. 239-242, pp. 2667-2670, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Rira Jung, Hyoung Joon Jin
Abstract:We prepared composite films consisting of two biocompatible materials, bacterial cellulose and silk fibroin. Aqueous silk fibroin solution...
741
Authors: Huai Fang Wang, Hai Ning Lv, Jing Feng, Zhi Kai Wang
Chapter 1: Advanced Engineering Materials
Abstract:Collagen/cellulose films were made by the blend solutions of collagen, cellulose in this paper. To begin with, collagen and cellulose was...
30
Authors: Chu Chu Chen, Da Gang Li, Qiao Yun Deng, Yu Mei Wang, Dong Liang Lin
Chapter 1: Advanced Material Science and Technology
Abstract:This paper demonstrates the preparation of transparent regenerated membrane from bacterial cellulose (BC) sheets using the lithium...
30
Authors: Fei Zhang, Hai Wei Ren, Jin Ping Li
Chapter 1: Environmental Materials, Chemistry, Biology Technology and Processes
Abstract:In this study, we proposed the use of distillers grains (DG) as a source for production of microcrystalline cellulose (MCC) due to its high...
339
Authors: Ling Duan, Hong Bin Wang, Wei Dong Yu
Chapter 2: Material Processing Technology, Technologies of Application of Materials
Abstract:Jute nanofibers were prepared by treating jute fibers with chemical pretreatments then applying blender finishing. Scanning electron...
408