Ku, Harry and Cardona, Francisco and Jamal Eddine, Mustapha (2012) Thermal properties of calcium carbonate powder reinforced vinyl ester composites: pilot study. Journal of Applied Polymer Science . ISSN 0021-8995 (In Press)
|HTML Citation||EndNote||Dublin Core||Reference Manager|
Full text not available from this archive.
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/app.37973/pdf
Identification Number or DOI: doi: 10.1002/app.37973
The viscoelastic properties of vinyl ester (VE) composites filled with calcium carbonate (CC) (CaCO3) powder have been evaluated using the dynamic mechanical analysis (DMA) technique. It was found that irrespective of the percentage by weight of CaCO3 powder, the VE composites postcured in an oven up to 60°C have higher glass transition temperatures (Tg) and storage modulus than their counterparts cured at ambient conditions. However, the loss moduli were lower for composites postcured in an oven than their ambient cured counterparts. It was also found that the crosslinking density of the composites slightly increased with particulate (CaCO3) loading and composites postcured in an oven have higher crosslinking density than their counterparts cured at ambient conditions. These results confirmed an increase in stiffness for composites with postcuring treatment. Micrographs by SEM were obtained and confirmed a close inter phase adhesion of the CC filler with the VE resin matrix in the composites.
|Item Type:||Article (Commonwealth Reporting Category C)|
|Additional Information:||Published online 17 May 2012. Permanent restricted access to ArticleFirst version in accordance with the copyright policy of the publisher.|
|Uncontrolled Keywords:||vinylester resin; glass powder; glass transition temperature; loss modulus; storage modulus|
|Fields of Research (FOR2008):||09 Engineering > 0905 Civil Engineering > 090503 Construction Materials|
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
09 Engineering > 0915 Interdisciplinary Engineering > 091502 Computational Heat Transfer
|Socio-Economic Objective (SEO2008):||E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering|
|Deposited On:||22 Aug 2012 10:22|
|Last Modified:||22 Jan 2013 11:30|
Archive Staff Only: edit this record