Композиты и наноструктуры COMPOSITES and NANOSTRUCTURES Том 8 (Volume 8) ¹ 2 2016 Preparation of Thermal Exfoliated Graphene and Studies of Effect of Graphene on Thermal Stability of Graphene-Epoxy Nanocomposites H.L.Gajera1 1 and S.Manocha2* Department of Physical Science, P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Anand-388421, Gujarat, India 2 University School of Basic and Applied Sciences, GGSIP University, Dwarka, New Delhi, India Thermally Exfoliated graphene (TEG) was synthesized from graphite oxide by thermal exfoliation treatment of dried graphite oxide, synthesized by modified Hummer‘s method using natural graphite flakes as starting material. <...> This thermal exfoliated graphene (TEG) was characterized using SEM, TEM, and XRD techniques. <...> TEG based epoxy nano composites were fabricated by using solution mixing method. <...> The influence of graphene on the thermal stability and glass transition temperature of nano composites was studied by using thermo gravimetric analysis and differential scanning calorimetry, respectively. <...> The thermo gravimetric results showed higher thermal stability of composites in comparison with pure epoxy and also an increase in char yield with increase in graphene content. <...> It shows that pure epoxy resin starts degradation at 341 °C and maximum degradation takes place at 370 °C temperature and in case of composite with 1.5% of TEG degradation starts at 368 °C and maximum degradation takes place at higher temperature of 390 °C. <...> Keywords: Thermally Exfoliated Graphene (TEG), thermal exfoliation, thermal stability, nano composites. <...> Далее графен был исследован методами сканирующей и просвечивающей электронной микроскопии и рентгено-структурного анализа. <...> Показано, что внесение графена в эпоксидный полимер приводит к увеличению его температуры деградации. <...> Graphene can be used in electronic devices [3], liquid crystal display х[4], transparent conducting electrode [5] , super capacitor electrode [6] and composite filler material [7]. <...> The mechanical exfoliation of graphite by using scotch tap method is first method for obtaining graphene [8]. <...> Now a days chemical yield oxidation <...>