Mechanical Characterization of TiO2 Reinforced Epoxy Composites with the Addition of Nanocrystalline TiB2 Particles
Rangadhara Chary Varayogi , National Institute of Technology, Warangal; M K Mohan, National Institute of Technology, Warangal
Epoxy Composites, Glass Transition Temperature, Nanocrystalline TiB2, Self-Propagating High-Temperature Synthesis (SHS), Tensile and Flexural Properties
The present investigation aims at understanding the influence of nanocrystalline TiB2 powder addition on mechanical properties of micron-sized TiO2 powders reinforced epoxy composites. The nanocrystalline TiB2 powder is synthesized by self-propagating high temperature synthesis and is in the size range of 60-70 nm as revealed from TEM studies. The preparation of epoxy composites are done by hand-layout technique and are allowed to cure under vacuum at room temperature. The Epoxy-TiO2 microcomposites were casted using hand-layout technique and cured under vacuum at room temperature. The nanocomposites were prepared by addition of 0.2, 0.4, 0.6, 0.8, and 1.0 vol.% TiB2 to Epoxy-4 vol.% TiO2 microcomposite. Ductility has increased by 3-4 times in comparison to neat epoxy, and it has increased by two times in comparison to microcomposites. The Vickers hardness of composites shows an increasing trend with increasing particulate content. DSC studies reveal the glass transition temperature, Tg, of the epoxy composites to be lower than the neat epoxy and a decreasing trend was observed with increasing filler content.
|Manuscript Id ||:||IJSTEV3I9061|
|Published in ||:||Volume : 3, Issue : 9|
|Publication Date||:|| 01/04/2017|