Morphological, optical and thermal characterisation of aerogel-epoxy composites for enhanced thermal insulation

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dc.contributor.authorKrishnaswamy, Suryanarayanan
dc.contributor.authorBhattacharyya, Debabrata
dc.contributor.authorAbhyankar, Hrushikesh
dc.contributor.authorMarchante Rodriguez, Veronica
dc.contributor.authorHuang, Zhaorong
dc.contributor.authorBrighton, James
dc.date.accessioned2018-11-02T12:58:40Z
dc.date.available2018-11-02T12:58:40Z
dc.date.issued2018-08-15
dc.description.abstractThe present work explores the possibility of introducing aerogel at different stages of the epoxy resin cure to identify the most effective method that ensures minimal destruction of the aerogel particles. The aerogel particles are added at 0.5 h, 1 h and 1.5 h after the resin and the hardener are mixed together. Additionally, the effect of a wetting agent that improves the interface between the aerogel and the resin is also investigated. The different materials are characterised using optical images and ESEM-EDX to determine the most effective processing route. Additional data are also provided by determining the different material’s optical transmittance and reflective characteristics. From the experimental results, it is observed that the addition of aerogel at the 1-h mark proves to be the most efficient route to follow. In addition, the wetting agent displays a negligible effect on the samples in the study; hence, its usage is advocated due to its influence on the interface strength. Therefore, the aerogel/epoxy/wetting agent sample with the aerogel added at the 1 h mark looks promising. A 13.3% decrease in thermal conductivity when compared with the pure resin/hardener sample along with the damage coefficient value of 0.183 demonstrates the material’s potential for thermal insulation applications.en_UK
dc.identifier.citationSuryanarayanan Krishnaswamy, Debabrata Bhattacharyya, Hrushikesh Abhyankar, et al., Morphological, optical and thermal characterisation of aerogel-epoxy composites for enhanced thermal insulation. Journal of Composite Materials, Volume 53, Issue 4, March 2019, pp. 909-923en_UK
dc.identifier.issn0021-9983
dc.identifier.urihttps://doi.org/10.1177/0021998318793194
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/13614
dc.language.isoenen_UK
dc.publisherSAGEen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectAerogelen_UK
dc.subjectepoxyen_UK
dc.subjectthermal insulationen_UK
dc.subjectdamage coefficienten_UK
dc.subjectcomposite materialsen_UK
dc.titleMorphological, optical and thermal characterisation of aerogel-epoxy composites for enhanced thermal insulationen_UK
dc.typeArticleen_UK

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