Abstract
Copyright © 2016 John Wiley Sons, Ltd. A combination of Raman imaging with image analysis has been used to quantify the degree of mixing of cellulose nanocrystals (CNCs) in melt compounded high-density polyethylene (HDPE). Raman spectroscopy is shown to provide an accurate ‘fingerprint’ of the composition of the cross-sectional area of the end section of a formed composite. This information is then converted to a chemical image allowing spatial quantification of the mixing of CNCs in the HDPE. A degree of mixing between CNCs and HDPE is reported, with a strong tendency for the former to agglomerate with little dispersion. Freeze-dried CNCs show better mixing with HDPE and a lower tendency to agglomerate than spray-dried CNCs. This approach shows the potential to use Raman spectroscopy to quantify the degree of mixing of CNCs in a thermoplastic matrix. Copyright © 2016 John Wiley Sons, Ltd.
| Original language | English |
|---|---|
| Pages (from-to) | 1337-1342 |
| Number of pages | 6 |
| Journal | Journal of Raman Spectroscopy |
| Volume | 47 |
| Issue number | 11 |
| Early online date | 1 Jul 2016 |
| DOIs | |
| Publication status | Published - 8 Nov 2016 |
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Professor Steve Eichhorn
- School of Civil, Aerospace and Design Engineering - Professor of Materials Science and Engineering
- Bristol Composites Institute
Person: Academic , Member