Improving some thermal specifications of (epoxy/Alumina powders) composite for thermal isolation

Aluminum oxide (Al2O3) micro particles were added to epoxy by different concentrations (0, 5, 10 and 15% wt.) to improve its microstructure and thermal properties like thermal stability and glass transition temperature using the techniques thermogravimetry (TGA) and differential thermal analysis ( DSC) respectively. The thermal stability and glass transition temperatures were increased with increasing the ratio of addition (Al2O3) powder in epoxy matrix. The experimental results showed that with adding the (15%Al2O3) to the epoxy, its thermal properties will be improved in the temperature range 316-345.5 °C and the epoxy composite can be used in coating or insulation applications. X-ray diffraction technique was employed to study and understand the microstructure of (epoxy /Al2O3) composites, (epoxy / 15%Al2O3) composite showed a crystalline structure at diffraction angles (14.50, 28.20, 38.40), the crystallinity of this composite, will has a good results in both thermal stability and glass transition.