Preparation and Characterization of Bacterial Nanocellulose-Based Composite Membranes
Preparation and Characterization of Bacterial Nanocellulose-Based Composite Membranes
复制标题
细菌纳米纤维素基复合膜的制备及表征
DOI：
10.1166/sam.2020.3742
复制
发表时间：
2020-06
影响因子：
0.9
通讯作者：
Jiang Jian-Xin
中科院分区：
文献类型：
--
作者：
Ju Si-Yi;Yu Hai-Long;Ji Li;Wang Kun;Jiang Jian-Xin
This study has been carried out to design environment friendly membranes prepared by an immersion method with bacterial nanocellulose (BNC) as a template, and chitosan (Ch) and poly(vinyl alcohol) (PVA) as functional entities for high bacteriostasis and hydrophilicity, respectively.
The BNC-Ch0.5-PVA membranes have more pronounced pores and looser three-dimensional structure than those of BNC, and the surfaces of the composites prepared with more Ch obviously became flatter and denser, observed using a scanning electron microscope. The Young's modulus and tensile
strength of wet composite membranes decreased following Ch and PVA incorporation. Lower thermal stability and crystallinity index of composite membranes were observed than those of BNC. The composite BNC-Ch0.5-PVA2 membranes possessed much better hydrophilicity than pure
BNC. The composites exhibited noteworthy antibacterial properties against Escherichia coli and Staphylococcus aureus compared to pure BNC which has no antibacterial ability. These results indicate that BNC-based composite membranes show excellent performance, especially a remarkable
swelling capacity and bacteriostatic ability, and are claimed to be effective in various applications such as medical treatment as a wound dressing.
