Determination of coefficient thermal expansion of glass microballoon/vinyl ester syntactic foams

Salleh, Zulzamri and Islam, Md Mainul and Epaarachchi, Jayantha Ananda (2016) Determination of coefficient thermal expansion of glass microballoon/vinyl ester syntactic foams. In: 3rd Advanced Materials Conference (AMC 2016): Advanced Materials for Sustainability and Growth, 28-29 Nov 2016, Lagkawi, Malaysia.

Abstract

The coefficient thermal expansion, alpha (CTE) of glass microballoon/vinyl ester syntactic foam was determined using dimensional changes of a temperature gradient plot. The CTE was measured and found to be up to 53-63% lower than the vinyl ester resin matrix when mixing different weight percentages of the glass microballoon ranging from 2 wt.% to 10 wt.% using a thermomechanical analyzer (TMA). The results of CTE show that it has a strong relationship with the syntactic foam density (rho), radius ration (eta), cavity porosity (phi y) and matrix porosity (phi mu) within the parameters entered. Experimental results show that the CTE decreases when glass microballoons are added into the composites measured at different temperatures ranging from 30-70°C. The CTE from the experimental results were also compared with Turner’s modification model for composites for its suitability for thermal expansion of syntactic foams. The results indicate that Turner’s modification model exhibits a close correlation with the reduction of up to 80% of CTE based on experiment.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: c. Advanced Materials Research Centre (AMREC).
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 24 Oct 2017 04:47
Last Modified: 15 Nov 2017 04:14
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
Socio-Economic Objective: B Economic Development > 87 Construction > 8703 Construction Materials Performance and Processes > 870303 Polymeric Materials (e.g. Paints)
URI: http://eprints.usq.edu.au/id/eprint/30316

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