Melt compounded polylactic acid-hexagonal boron nitride-aluminum oxide hybrid composites for electronic applications: impact of hybrid fillers on thermophysical,dielectric, optical,and hardness properties期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Melt compounded polylactic acid-hexagonal boron nitride-aluminum oxide hybrid composites for electronic applications: impact of hybrid fillers on thermophysical,dielectric, optical,and hardness properties

Authors:	J. Vishnu Chandar D. Mutharasu K. Mohamed K. I. K. Marsilla S. Shanmugan A. A. Azlan

Affiliation:	1. School of Mechanical Engineering, Universiti Sains Malaysia (USM) , Nibong Tebal, Malaysia vishnuchandar.j@gmail.com;3. MCoE, PTDI-Solid State Drive (SSD), Western Digital Corporation , Sebarang Perai Selatan, Malaysia;4. School of Mechanical Engineering, Universiti Sains Malaysia (USM) , Nibong Tebal, Malaysia https://orcid.org/0000-0003-1074-7397;5. School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia (USM) , Nibong Tebal, Malaysia;6. School of Physics, Universiti Sains Malaysia (USM) , Minden, Malaysia;7. School of Physics, Universiti Sains Malaysia (USM) , Minden, Malaysia https://orcid.org/0000-0002-7977-4249

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 (?? – 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.

Keywords:	Polylactic acid boron Nitride aluminum oxide thermal conductivity dielectric UV absorption

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