Abstract
ABSTRACT The dielectric, thermophysical, optical, and hardness of pure polylactic acid (PLA) and hBN micropowder and Al2O3 nanopowder (1% to 30%) reinforced PLA hybrid composites were investigated. Hybrid composites exhibit improved thermal conductivity (k – 0.54 W/mK), permittivity (ɛꞌ – 4.6720 @ 1 MHz to 1 GHz) with very low loss tangent (tan δ < 0.02). High absorption in UV region was observed for all hybrid composites. Overall, the prepared hybrid composites can be used as a bio-based dielectric substrates, enclosures, thermal interface material for low temperature applications and UV-absorbable coating materials for fabric, packaging, and storage applications.
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