Journal
IRANIAN POLYMER JOURNAL
Volume 30, Issue 2, Pages 93-103Publisher
SPRINGER
DOI: 10.1007/s13726-020-00876-8
Keywords
Pebble stone; Epoxy; Thermal conductivity; Water absorption; Porosity
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This study aimed to obtain pebble and epoxy composites with low thermal conductivity, low water absorption, and minimal porosity. Results showed that the composite with 15% epoxy resin content yielded better results in terms of thermal conductivity, water absorption, and porosity compared to the one with 35% epoxy resin content.
This study aims to obtain pebble and epoxy composites with low thermal conductivity, low water absorption and minimal porosity. The effects of filler size, weight percentage of pebble and epoxy, aggregate size and curing time of the composites were evaluated. The ANOVA ofS/Nratio was also performed to determine the effect of thermal conductivity, water absorption and porosity of the composites. The experiments were designed as per the Taguchi L27 orthogonal array. The results indicated that the effect of thermal conductivity improved slightly with 35% (wt) of epoxy resin present in the composite and the higher thermal conductivity was observed in the composite with 15% (wt) of epoxy resin. Water absorption and porosity results were found which showed that this composite with 15% (wt) epoxy resin content yielded better results when compared to the composite with 35% (wt) epoxy resin content. The embedded composites were characterized using Fourier transform infrared (FTIR) spectra to study the effect of chemical treatment of pebble/epoxy composite. The morphological studies of the fractured surfaces of the epoxy composites were performed by scanning electron microscopy.
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