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Influence of the processing methods on the properties of poly(lactic acid)/halloysite nanocomposites

Lookup NU author(s): Dr Kheng-Lim GohORCiD

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Abstract

The influence of processing methods on the thermo-mechanical properties of poly (lactic acid) (PLA) nanocomposites were investigated by preparing nanocomposites reinforced by halloysite nanotubes (HNTs) (from 0 to 10 [w/w%]) using solution casting (SC) and melt compounding (MC) methods. Statistical analysis revealed that the processing methods have a significant influence on the tensile properties, where nanocomposites prepared by MC have higher tensile properties compared to those by SC. Experimental results illustrated higher tensile strength and a drop in ductility under the higher strain rate as compared to the low strain rate for PLA/HNTs nanocomposites. At lower concentrations micrographs revealed that, HNTs dispersion was better for SC films as compared to MC, but more prominent HNTs aggregation at higher loadings. MC nanocomposites exhibited a high crystallinity as compared to SC, due to the recrystallization and nucleation effects. The thermal stability and activation energy increased with addition of HNTs, regardless of the processing methods. POLYM. COMPOS., 37:861-869, 2016. (c) 2014 Society of Plastics Engineers

Publication metadata

Author(s): De Silva RT, Soheilmoghaddam M, Goh KL, Wahit MU, Bee SA, Chai SP, Pasbakhsh P

Publication type: Article

Publication status: Published

Journal: Polymer Composites

Year: 2016

Volume: 37

Issue: 3

Pages: 861-869

Print publication date: 01/03/2016

Online publication date: 18/09/2014

Acceptance date: 02/06/2014

ISSN (print): 0272-8397

ISSN (electronic): 1548-0569

Publisher: Wiley-Blackwell

URL: http://dx.doi.org/10.1002/pc.23244

DOI: 10.1002/pc.23244

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