Investigation of the effect of styrene content on the ultimate curing of vinylester resins by TGA-FTIR
Article
Article Title | Investigation of the effect of styrene content on the ultimate curing of vinylester resins by TGA-FTIR |
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ERA Journal ID | 4918 |
Article Category | Article |
Authors | Cardona, F. (Author), Rogers, D. (Author), Davey, S. (Author) and Van Erp, G. (Author) |
Journal Title | Journal of Composite Materials |
Journal Citation | 41 (2), pp. 137-152 |
Number of Pages | 16 |
Year | 2007 |
Publisher | SAGE Publications Ltd |
Place of Publication | London, United Kingdom |
ISSN | 0021-9983 |
1530-793X | |
Digital Object Identifier (DOI) | https://doi.org/10.1177/002199830?063357 |
Web Address (URL) | http://jcm.sagepub.com/content/41/2/137.full.pdf+html |
Abstract | The influence of styrene content on styrene added vinylester resin (VER) is investigated. The network structure and its thermal properties is investigated by DSC and the combination of TGA and FTIR (TGA–FTIR). The glass transition temperatures(Tgs) of the resins are found to decrease systematically with increasing styrene content, which decreases the cross-link density of the cured materials. The Tg of VERsamplescured97–98% is significantly lower, by as much as 25C, than the Tg of a fully cured (100%)sample. This is due to the plasticizing effect of unreacted styrene in the network. The combination of TGA and FTIR confirm the evolution of gaseous styrene moieties at the degradation temperature of vinylester groups, the relative amount of styrene emitted being higher with increasing styrene content. A good correlation is found between the thermal properties by DSC and the results obtained from the TGA–FTIR system. |
Keywords | TGA–FTIR; styrene; vinylester; Tg; cross-link density; plasticizing effect |
ANZSRC Field of Research 2020 | 340306. Polymerisation mechanisms |
401602. Composite and hybrid materials | |
401609. Polymers and plastics | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Fibre Composites Design and Development |
https://research.usq.edu.au/item/9y5x0/investigation-of-the-effect-of-styrene-content-on-the-ultimate-curing-of-vinylester-resins-by-tga-ftir
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