SMA-Assisted Exfoliation of Graphite by Microfluidization for Efficient and Large-Scale Production of High-Quality Graphene

SMA-Assisted Exfoliation of Graphite by Microfluidization for Efficient and Large-Scale Production of High-Quality Graphene

In this paper, the sodium salt of styrene-maleic anhydride copolymer (SMA) was used as a stabilizer in the process of graphite exfoliation to few-layer graphene using the technique of microfluidization in water. This method is simple, scalable, and cost-effective, and it produces graphene at concent...

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Bibliographic Details
Main Authors: Yuzhou Wang, Xianye Zhang, Haihui Liu, Xingxiang Zhang
Format: Article
Language:English
Published: MDPI AG 2019-11-01
Series:Nanomaterials
Subjects:
liquid phase exfoliation
microfluidization
graphene
large-scale fabrication
polyamide 66 composites
Online Access:https://www.mdpi.com/2079-4991/9/12/1653
Description
Summary:In this paper, the sodium salt of styrene-maleic anhydride copolymer (SMA) was used as a stabilizer in the process of graphite exfoliation to few-layer graphene using the technique of microfluidization in water. This method is simple, scalable, and cost-effective, and it produces graphene at concentrations as high as 0.522 mg mL<sup>&#8722;1</sup>. The generated high-quality graphene consists of few-layer sheets with a uniform size of less than 1 &#956;m. The obtained graphene was uniformly dispersed and tightly integrated into a polyamide 66 (PA66) matrix to create high-performance multifunctional polymer nanocomposites. The tensile strength and thermal conductivity of 0.3 and 0.5 wt% EG/PA66 composites were found to be ~32.6% and ~28.8% greater than the corresponding values calculated for pure PA66, respectively. This confirms that the new protocol of liquid phase exfoliation of graphite has excellent potential for use in the industrial-scale production of high-quality graphene for numerous applications.
ISSN:2079-4991

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