Improved Dispersion of Carbon Nanotubes in Polymers at High Concentrations

The polymer nanocomposite used in this work comprises elastomer poly(dimethylsiloxane) (PDMS) as a polymer matrix and multi-walled carbon nanotubes (MWCNTs) as a conductive nanofiller. To achieve uniform distribution of carbon nanotubes within the polymer, an optimized dispersion process was develop...

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Bibliographic Details
Main Authors: Chao-Xuan Liu, Jin-Woo Choi
Format: Article
Language:English
Published: MDPI AG 2012-10-01
Series:Nanomaterials
Subjects:
Online Access:http://www.mdpi.com/2079-4991/2/4/329
Description
Summary:The polymer nanocomposite used in this work comprises elastomer poly(dimethylsiloxane) (PDMS) as a polymer matrix and multi-walled carbon nanotubes (MWCNTs) as a conductive nanofiller. To achieve uniform distribution of carbon nanotubes within the polymer, an optimized dispersion process was developed, featuring a strong organic solvent—chloroform, which dissolved PDMS base polymer easily and allowed high quality dispersion of MWCNTs. At concentrations as high as 9 wt.%, MWCNTs were dispersed uniformly through the polymer matrix, which presented a major improvement over prior techniques. The dispersion procedure was optimized via extended experimentation, which is discussed in detail.
ISSN:2079-4991