EVERGREEN

Joint Journal of Novel Carbon Resource Sciences and Green Asia Strategy

ISSN:2189-0420 (Print until Mar 2020)
ISSN:2432-5953 (Online)

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Experimental Determination and Theoretical Prediction of Thermal Conductivity in Glass Fabric Reinforced Epoxy Hybrid Composites

Bommegowda K Basavarajappa1, Roopa B Hegde2,*
1Department of Electronics & Communication Engineering, NMAM Institute of Technology, India
2Department of Electronics & Communication Engineering, NMAM Institute of Technology, NITTE, 574110, Udupi, India
*Author to whom correspondence should be addressed:
E-mail: roopabhegde@nitte.edu.in (RBH)
Evergreen, Vol. 12, Iss. 03, pp. 1752–1761, 2025
DOI: 10.5109/7388862
Creative Commons Attribution 4.0 International Creative Commons Attribution 4.0 International
Received: May 07, 2025 | Revised: July 11, 2025 | Accepted: August 15, 2025 | Published: September 2025
Abstract
This research focuses on investigating the thermal properties of hybrid composites comprising glass fabric reinforcement integrated with a combination of micro and nano sized fillers. Glass fabric-reinforced epoxy composites incorporating varying proportions of micro and nano sized fillers (Al₂O₃, SiO₂, SiC, graphite, MoS₂, and cenosphere) were developed using the hand lay-up technique in conjunction with a bagging process. The developed hybrid composites underwent Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), and Thermal Conductivity (TC) testing to assess their thermal properties. Furthermore, an investigation was conducted to correlate the experimental data with the results obtained from mathematical modelling regarding the effective TC of the hybrid composites. From the study, it was evident that the composite containing 5 wt.% of SiC exhibited a glass transition temperature of 146.16°C and a TC of 0.52 W/mK. Conversely, the composite containing a combination of cenosphere and MoS2 exhibited a higher thermal conductivity (TC) of 0.68 W/mK.
Keywords
thermal conductivity ; differential scanning calorimetry ; thermogravimetric analysis ; hybrid fillers ; Glass fabric
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