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Effects of Carbon Nanotube Functionalization on the Mechanical Properties of Vinyl Ester Composites

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Abstract:

Chemically functionalized muliti-walled carbon nanotubes (MWCNTs)/vinyl ester resin (VE) nanocomposites were prepared. MWCNTs were first treated by H2SO4/HNO3 acid mixture, and then carboxylated MWCNTs were grafted of methacrylic acid glycidyl ester (GMA). Raman microscopy and Fourier transform infrared spectroscopy (FT-IR) analyses proved the effectivenss of acid-treatment and chemical functionalization. Furthermore, chemical functionalization did not greatly disrupt carbon nanotubes structure and Transmission electron microscopy (TEM) showed that there was a GMA thin layer on the MWCNTs surface, which contributes to the homogenous dispersion of MWCNTs in vinyl ester resin matrix and the CNTs-VE interfacial interaction. Thus the nanocomposites containing MWCNT-GMA possess larger storage modulus values as well as higher glass transition temperatures (Tg).

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Periodical:

Advanced Materials Research (Volumes 233-235)

Pages:

2315-2318

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.233-235.2315

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Online since:

May 2011

Authors:

Hong Yan Chen, Hua Bo Huang, Ji Hui Wang

Keywords:

Carbon Nanotube (CN), Functionalisation, Nanocomposite, Vinyl Ester Resin

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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