Journal
JOURNAL OF POLYMER RESEARCH
Volume 18, Issue 6, Pages 1397-1407Publisher
SPRINGER
DOI: 10.1007/s10965-010-9544-8
Keywords
Nanocomposites; Carbon nanotubes; UV-vis spectroscopy; Functionalization; Mechanical properties; Epoxy resin
Categories
Funding
- CSIR
- ASL [MoU: ASL/31/08/4052/MoU/01]
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A suitable dispersion technique and quantitative evaluation of degree of dispersion of carbon nanotubes (CNT) in any solvent and matrix system has been one of the key issues for achieving enhanced performance of CNT reinforced composites. We report the use of UV-vis spectroscopy as a useful technique to ascertain the degree of dispersion of multiwalled carbon nanotubes (MWCNT) in the epoxy resin. The study has enabled to maximize dispersion of MWCNT in the epoxy resin using two different routes. As a result the composite samples prepared with only 0.3 wt.% amine functionalized MWCNT showed flexural strength of 140 MPa over the neat resin value of 55 MPa, an improvement of similar to 155% which is maximum reported so far for CNT-epoxy isotropic composites.
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