Accelerated Weathering and UV Protection-Ability of Poly(lactic acid) Nanocomposites Containing Zinc Oxide Treated Halloysite Nanotube
- Universiti Sains Malaysia, School of Materials and Mineral Resources Engineering, Engineering Campus (Malaysia)
The aim of this study is to investigate the effects of zinc oxide treated halloysite nanotube (HNT-ZnO) on the properties of poly(lactic acid) (PLA) nanocomposites. ZnO was immobilized on HNT using a solvent-free technique. PLA nanocomposites were prepared with different loading of HNT-ZnO (i.e., 3, 5 and 7 wt%) using melt compounding. The properties of the PLA/HNT-ZnO nanocomposites were investigated using tensile test, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction, thermogravimetric analysis and UV–visible spectroscopy. In addition, the effects of accelerated weathering (duration 60 days) on the behaviour of PLA/HNT-ZnO nanocomposites were studied. It was found that HNT-ZnO is capable to enhance the reinforcing ability, thermal stability and UV barrier of PLA nanocomposites. The PLA/HNT-ZnO films showed less discoloration and chain scission, indicating its higher photo-stability as compared to PLA/HNT after exposed to accelerated weathering. In summary, this study provides a basis for further development of PLA/HNT-ZnO nanocomposites with desirable mechanical, thermal and UV protection properties for potential outdoor application.
- OSTI ID:
- 22977089
- Journal Information:
- Journal of Polymers and the Environment, Journal Name: Journal of Polymers and the Environment Journal Issue: 8 Vol. 27; ISSN 1566-2543
- Country of Publication:
- United States
- Language:
- English
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