Investigation by TGA-FTIR of the effect of styrene content and thickness on the UV-curing of vinylester resins

Cardona, F. and Rogers, D. and Van Erp, G. (2007) Investigation by TGA-FTIR of the effect of styrene content and thickness on the UV-curing of vinylester resins. Journal of Thermoplastic Composite Materials, 20 (6). pp. 601-615. ISSN 0892-7057

Abstract

The influence of styrene content and thickness of the samples on the UV curing of Vinyl ester/Styrene resins (VERs) was investigated by DSC and the combination of TGA and FT-IR (TGA-FTIR). The glass transition temperatures of the network polymers after curing were found to be lower for the VERs with higher styrene content. The released heat during UV curing further increased the Tg, with this increase being proportional to the volume of the resins. Within the range of thickness investigated (up to 30 mm) the relative amount of emissions of ST, VE and CO2 were found to be the similar at the top and at the bottom of the samples. Similar results were obtained from the TGA analysis, indicating that the VERs were fully or almost fully cured all along the cross section. A good correlation was found between the analysis of the thermal properties by DSC and the results obtained by the TGA-FTIR system.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Author version deposited in accordance with the copyright policy of the publisher. By the same main author there are three other papers that cover the comparison of thermal and UV- initiated curing of the same vinyester resins. Refer to these papers for a more convergence analysis of the VE resins. Copyright Sage.
Depositing User: Dr Francisco Cardona
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 11 Apr 2008 04:05
Last Modified: 02 Jul 2013 22:49
Uncontrolled Keywords: TGA-FTIR; styrene; vinylester; UV curing; Tg; heat released; crosslink density
Fields of Research (FOR2008): 09 Engineering > 0905 Civil Engineering > 090503 Construction Materials
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
Socio-Economic Objective (SEO2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: doi: 10.1177/0892705707083950
URI: http://eprints.usq.edu.au/id/eprint/3141

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