Seminar Details

Seminar Title
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Development and Characterization of Epoxy based Hybrid Composites Reinforced with Hair Fibers
Seminar Type
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Synopsis Seminar
Department
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Mechanical Engineering
Speaker Type
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Student
Speaker Name
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BISHNU PRASAD NANDA ( RollNo : 515ME1012)
Date  &  Time
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01 Mar 2021  10:30 AM
Venue
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ONLINE- MS Team (Team code- e70ufxo)
Contact
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Prof. Alok Satapathy
Abstract
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Human hair is a biological waste which creates many environmental problems due to its slow decomposition rate. But it also has many unique properties like high tensile strength, thermal insulation, unique chemical composition, elastic recovery, scaly surface etc. Although several avenues for utilization of hair fiber are already in place, its use as a reinforcing natural fiber in polymer composites is very rarely reported. In view of this, the present work is undertaken to explore the possibility of composite making with human hair fiber as the reinforcing element in epoxy. The fabrication details of such a composite and its hybridization with secondary fillers have been discussed. The physical, mechanical, microstructural, tribological, thermal, dielectric and the acoustic characteristics of these composites are presented. It is found that the density and porosity of these composites are greatly influenced by the type and content of filler materials. Tensile, flexural and compressive strength of the composites can also be largely modified with the incorporation of short human hair fiber. It is further found that the wear performance of the epoxy+SHF composites can be improved significantly with the addition of solid glass microspheres. Reinforcement of short hair fiber improves the thermal insulation capability of the composite which can be further improved with the addition of SGM as the secondary filler. On the other hand, conductive fillers like BN and Al2O3 enhance the thermal conduction behavior of composite. The reinforcement of hair fiber also improves the acoustic insulation ability of composite with operating frequency. It is further observed experimentally that for all such composites, hair fiber reinforcement causes a drop in dielectric constant value. Thus this work opens up a new avenue for the value added utilization of a bio waste like human hair as a reinforcing element in polymer based composites with promising application potential.