The influence of pre-treatment of Spartium junceum L. fibres on the structure and mechanical properties of PLA biocomposites (CROSBI ID 230922)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Kovačević, Zorana ; Bischof, Sandra ; Vujasinović, Edita ; Fan, Mizi
engleski
The influence of pre-treatment of Spartium junceum L. fibres on the structure and mechanical properties of PLA biocomposites
Different chemical pre-treatments of Spartium junceum L. fibres using alkali (NaOH), nanoclay (MMT) and Citric acid (CA) with the aim of producing biodegradable composite material are discussed. As environmental requirements in processing technologies have been higher in recent years, the Polylactic acid (PLA) is used in this research as a matrix, due to its renewability, biodegradability and biocompatibility. Biocomposites are prepared by reinforcing PLA with randomly oriented, short Spartium junceum L. fibres in order to increase material strength. The effects of different pre-treatments of Spartium junceum L. fibres on the mechanical properties of final biocomposite material are examined. Fibre tenacity is studied using Vibroscop and Vibrodyn devices. Tensile strength of biocomposite material was measured on the universal electromechanical testing machine Instron 5584. The results indicate that biocomposites reinforced with fibres modified with MMT and CA show upgraded mechanical properties of the final composite material in comparison with the composite materials reinforced with referenced (nontreated) fibres. Infrared spectra of tested fibres and biocomposites were determined with Fourier transform infrared spectroscopy using Attenuated total reflection (FT-IR ATR) sampling technique and the influence of fibre modifications on the fibre/polymer interfacial bonding was investigated. The interface of Spartium/PLA composites was observed with scanning electron microscope (SEM) and it was clearly visible that biocomposites reinforced with fibres modified by MMT and CA showed better interaction of fibres and matrix.
Fibres ; Polymer-matrix composites (PMCs) ; Mechanical properties ; Mechanical testing
Initially the paper was published in Arabian Journal of Chemistry Open Access in 2016 and later in 2019 with full bibliographic details. Main authors: Z. Kovačević i E. Vujasinović
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o izdanju
12 (4)
2019.
449-463
objavljeno
1878-5352
1878-5352
10.1016/j.arabjc.2016.08.004
Povezanost rada
Interdisciplinarne tehničke znanosti, Tekstilna tehnologija