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Polymer-Plastics Technology and Materials Volume 60, 2021 - Issue 9
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Synergetic effect of micro-hBN and nano-Al2O3 fillers on structural, surface, thermal, and mechanical properties of PLA/hBN/Al2O3 hybrid composites: experimental and theoretical investigation

J. Vishnu Chandara School of Mechanical Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, MalaysiaCorrespondence[email protected]
ORCID Iconhttps://orcid.org/0000-0003-0033-533XView further author information
ORCID Icon,
D. Mutharasub Western Digital Corporation, MCoE, PTDI-SSD, Western Digital Corporation, Seberang Perai Selatan, MalaysiaView further author information
,
K. Mohameda School of Mechanical Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, MalaysiaORCID Iconhttps://orcid.org/0000-0003-1074-7397View further author information
ORCID Icon,
K. I. K. Marsillac School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, MalaysiaORCID Iconhttps://orcid.org/0000-0003-0684-9438View further author information
ORCID Icon,
S. Shanmugand School of Physics, Universiti Sains Malaysia (USM), Minden, MalaysiaView further author information
&
A. A. Azland School of Physics, Universiti Sains Malaysia (USM), Minden, MalaysiaORCID Iconhttps://orcid.org/0000-0002-7977-4249View further author information
ORCID Icon
Pages 917-936 | Received 28 Oct 2020, Accepted 04 Dec 2020, Published online: 28 Jan 2021
 
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ABSTRACT

PLA/hBN/Al2O3 hybrid composites with 1–30% filler concentrations were prepared in which composites with 1–2% fillers exhibit high tensile strength & modulus (8–22%, 2–12%), flexural strength & modulus (10–21%, 5–16%), storage modulus (1–14%), Tg & thermal stability (4°C, 4%), scratch hardness (37–48%), with very low CTE (22–25% & 58–66%) & surface roughness (81–97%) compared to all other samples. This improved mechanical, thermal, and decreased CTE were due to synergetic effects of hybrid fillers in the PLA matrix. The extruded filaments with 1% hybrid fillers can be used for the mass production of future bio-based substrates and enclosures.

Acknowledgments

Vishnu Chandar Janakiraman expresses gratitude to USM Fellowship for financial support. Authors wish to acknowledge NOR Laboratory in School of Physics, USM Main campus, Gelugor, Malaysia for providing equipments to study XRD & FESEM analysis and Western Digital Corporation (Sandisk Storage Malaysia (SDSM)), Batu Kawan, Malaysia for providing facilities to study FTIR, SEM, DSC, TGA, TMA, DMA, 3pt bending, and Tensile analysis.

Additional information

Notes on contributors

J. Vishnu Chandar

Corresponding Author: J. Vishnu Chandar

D. Mutharasu

Co Author 2: D. Mutharasu

K. Mohamed

Co Author 3: K. Mohamed

K. I. K. Marsilla

Co Author 4: K. I. K. Marsilla

S. Shanmugan

Co Author 5: S. Shanmugan

A. A. Azlan

Co Author 6: A. A. Azlan

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