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Krishnappa, Sanjay
in Cooperation with on an Cooperation-Score of 37%
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Publications (3/3 displayed)
- 2023Specification of the optimal gas metal arc welding (GMAW) parameters to enhance the mild steel strength (MS1018)
- 2022Epoxy-poly lactic acid blended composites reinforced with carbon fibres for engineering applicationscitations
- 2022Effect of Multi-Walled Carbon Nanotubes and Carbon Fiber Reinforcements on the Mechanical and Tribological Behavior of Hybrid Mg-AZ91D Nanocompositescitations
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article
Epoxy-poly lactic acid blended composites reinforced with carbon fibres for engineering applications
Abstract
<jats:p>When it comes to sustainability, bio-derived materials are one of the most promising sources of polymers. They are easily accessible, affordable, and may result in a decrease in carbon emissions. The use of bio-based polymer composites lowers the dependence on petroleum-based polymers,leading to environmental degradation issues. Because of this epoxy-based composites are synthesized by combining the same with a biopolymer of Poly Lactic Acid (PLA) in varied proportions from 20 to 50 wt.% of the holding matrix. Exhaustive tests are conducted to optimize PLA percentage inthe epoxy matrix. Accordingly, composites are prepared with 80% epoxy resin and 20% PLA in terms of enhanced mechanical properties. Further, these composites are strengthened by reinforcing them with CFs in varied proportions. This research emphasizes the synthesis of composite with a matrixof 80% epoxy resin and 20% PLA reinforced with CFs at 0.2 and 0.3 wt.% of the holding matrix to test their potential as a feasible composite material for engineering applications. To understand the bonding nature, thermal, and microstructural behavior of the composite material, characteristicstudies such as Fourier Transform Infrared (FTIR) Spectroscopy, Thermo gravimetric analysis (TGA), and Scanning Electron microscope (SEM) images are used. Experimental results on the mechanical properties of the composites showed an increase in flexural strength by 7.62% and 3.56% for 0.2and 0.3 wt.% of CFs reinforcements in the polymer matrix compared to pristine coupons. Simulation studies are done with ANSYS Workbench to validate the same with experimental readings and are found to be in close agreement with an error of 10–15%.</jats:p>