TY - JOUR ID - 15987 TI - Development of SiO<sub>2</sub>-epoxy Nanocomposites and their Thermo-mechanical Properties JO - Advanced Materials Proceedings JA - AMP LA - en SN - 2002-4428 AU - Rajpoot, Bandana AU - Kumar Singh, Sushil AU - Kumar, Abhishek AU - Jain, Anuj AD - Applied Mechanics Department, Motilal Nehru National Institute of Technology Allahabad, 211004, India AD - Applied Mechanics Department, Motilal Nehru National Institute of Technology Allahabad, 211004, India Mechanical Engineering Department, G H Raisoni College of Engineering Nagpur, 440016, India Y1 - 2020 PY - 2020 VL - 5 IS - 2 SP - 1 EP - 4 KW - Silica Nanoparticles KW - epoxy KW - ultrasonic mixing KW - nanocomposites KW - mechanical and thermal properties DO - 10.5185/amp.2020.020401 N2 - This study is focused to see reinforcing effects of SiO2 nanoparticles on the mechanical and thermal properties of epoxy resin. For the same, SiO2 nanoparticles up to 8 wt.% were reinforced in epoxy resin and the effect of this reinforcement was seen on fracture toughness, fracture energy and glass transition temperature. The particles were dispersed ultrasonically in epoxy resin, which gives well dispersion of nano-SiO2 particles. A good dispersion of silica nanoparticles enhances mechanical and thermal properties up to 4 wt.% SiO2. As a result, the value of fracture toughness increases from 1.10 to 2.90 M Pa.m1/2, fracture energy increases from 2.66 to 11.50 kJ/m2 and glass transition temperature increased about 9&deg;C for the epoxy containing 4 wt.% SiO2 nanoparticles. With further particle loading in epoxy reflected decrease in mechanical and thermal properties, which is attributed to the significant increase in clustering of the nanoparticles at higher loading concentrations. UR - https://amp.iaamonline.org/article_15987.html L1 - https://amp.iaamonline.org/article_15987_b52ea9bda6a42ebf5e91f358b010041a.pdf ER -