Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 160, Issue -, Pages 161-168Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2018.03.010
Keywords
Particle-reinforced composites; Nanocomposites; Optical microscopy; Raman spectroscopy; Distribution
Categories
Funding
- European Union's Horizon research and innovation programme under the Marie Sklodowska-Curie grant [642890]
- Dstl
Ask authors/readers for more resources
Inhomogeneous distributions of nanoparticles in polymer nanocomposites have a strong influence on final material properties. Quantitative methods to characterise particle dispersion are rarely applied but are critical for advancing understanding of material behaviour, developing accurate computer models, and optimizing processing. Two complementary quantitative methods were developed to map local concentration, based on Raman spectroscopy and simple optical absorbance, respectively. The approaches are demonstrated for a model multi-walled carbon nanotube (MWNT) epoxy nanocomposite, but should be widely applicable. Maps of absolute concentration can be produced with submicron resolution, allowing analysis of the uniformity of MWNT concentration distribution via the coefficient of variation. The two approaches correlate closely, providing validation of both methods. However, the optical absorbance approach is likely to be more practical, in most cases, as it uses a standard laboratory microscope to analyse large areas rapidly. (C) 2018 Published by Elsevier Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available