Poly(lactic acid)/graphene oxide nanocomposites: A morphology study and mechanism of reaction

Norazlina, Hashim and Rabiatul Manisah, Mohamed and Hajaratul Najwa, Mohamed and Kamal, Yusoh (2024) Poly(lactic acid)/graphene oxide nanocomposites: A morphology study and mechanism of reaction. Journal of Advanced Research in Applied Sciences and Engineering Technology, 33 (3). pp. 384-392. ISSN 2462-1943. (Published)

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Because of environmental concerns, the use of biopolymer poly(lactic acid) (PLA) as a matrix has gotten a lot of attention. The graphite (Gt) was modified to produce graphene oxide (GO) using an acid treatment prior to mixing. The modified GO was validated by Fourier Transform Infrared Spectroscopy (FT-IR) and Ultraviolet-Visible Spectroscopy (UV-Vis) tests. Melt mixing produced PLA nanocomposites with 1.5 wt.% loadings of two distinct carbon-based materials, Gt and GO. The effect of a plasticizer of 5 wt.% poly(ethylene glycol) (PEG) on nanocomposites was also investigated. The morphology study by Field Emission Scanning Electron Microscopy (FESEM) analysis showed the GO loading gave a smooth surface morphology as compared with PLA/Gt. These findings were identified by the presence of a smooth fracture surface, particularly when PEG was loaded, as an indication of good nanofiller spreading in the matrix. The mechanisms of reactions for Gt and GO dispersion in the PLA matrix were proposed to prove the morphology analysis.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Graphene oxide; Melt blending; Poly(ethylene glycol); Poly(lactic acid)
Subjects: Q Science > QD Chemistry
T Technology > T Technology (General)
T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical and Process Engineering Technology
Depositing User: Mr Muhamad Firdaus Janih@Jaini
Date Deposited: 18 Jan 2024 04:50
Last Modified: 18 Jan 2024 04:50
URI: http://umpir.ump.edu.my/id/eprint/40083
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