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Publication Type : Journal Article
Publisher : IOP Conference Series: Materials Science and Engineering, IOP Publishing
Source : IOP Conference Series: Materials Science and Engineering, IOP Publishing, Volume 577, p.012030 (2019)
Campus : Coimbatore
School : School of Engineering
Center : Center for Excellence in Advanced Materials and Green Technologies
Department : Mechanical Engineering, Chemical, Civil
Year : 2019
In this work an attempt is made to improve the fracture toughness and electrical conductivity of epoxy/glass fiber based laminates by the inclusion of carbon nanotube (CNT) fillers. The fiber orientation of the epoxy/glass fiber (GF) fabric laminates was optimized based on estimation of mechanical properties. The carboxylic acid functionalized CNTs were incorporated into epoxy matrix by ultra-sonication method. The nano filled epoxy resin was used to prepare laminates with 30/45 GF fabric orientation. The CNT content was varied and its effect on the tensile properties was determined. The fracture toughness of multiphase composites was estimated using single edge notch bend (SENB) test. The presence of CNTs improved the fracture toughness by a crack bridging mechanism. The volume resistivity of multiphase composites was found to be superior to the conventional epoxy/CNT composite. The presence of glass fabric reduces the number of inter-tube contacts contributing to the reduction in volume resistivity.
Cite this Research Publication : Mahadevan Lakshmanan, Dr. Jayanarayanan K., and Joesph, J., “An Experimental Investigation of Fracture Toughness and Volume Resistivity of Symmetric Laminated Epoxy/Glass Fiber/CNT multiscale composites”, IOP Conference Series: Materials Science and Engineering, vol. 577, p. 012030, 2019.