Characterization of network bonding created by intercalated functionalized graphene and polyvinyl alcohol in nanocomposite films for reinforced mechanical properties and barrier performance

Graphene that consists of less than 10 layers is expensive; moreover, it tends to agglomerate. These disadvantages restrict its utility. In this regard, the present study aimed to reduce the number of layers of a functionalized graphene (FG) with 10-30 layers to less than 10 layers by using an ultra...

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Bibliographic Details
Published in:Nanotechnology 2020-09, Vol.31 (38), p.385703-385703
Main Authors: Tsou, Chi-Hui, Zhao, Lei, Gao, Chen, Duan, Hong, Lin, Xu, Wen, Yihua, Du, Juan, Lin, Shang-Ming, Suen, Maw-Cherng, Yu, Yongqi, Liu, Xiaohua, De Guzman, Manuel Reyes
Format: Article
Language:English
Subjects:
barrier performance
functionalized graphene
intercalation
mechanical properties
nanocomposite films
polyvinyl alcohol
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Summary:Graphene that consists of less than 10 layers is expensive; moreover, it tends to agglomerate. These disadvantages restrict its utility. In this regard, the present study aimed to reduce the number of layers of a functionalized graphene (FG) with 10-30 layers to less than 10 layers by using an ultrasonic processor. We prepared nanocomposite films of polyvinyl alcohol (PVA) incorporated with FG by a simple hydrothermal method and ultrasonic dispersion. Oxygen transmission rate and water vapor permeability were considerably increased on account of modifying PVA with FG. Furthermore, the mechanical properties, thermostability, and barrier properties were improved. The barrier efficiency of the nanocomposites at different temperatures remained high for long periods of operation because of the network bonding. A simple procedure involving relatively low-cost nanomaterials could unlock the potential of nanocomposite FG/PVA films in the fields of coating, packaging, and semiconductor materials.
ISSN:0957-4484
1361-6528
DOI:10.1088/1361-6528/ab9786