About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
17th Symposium on Green and Sustainable Technologies for Materials Manufacturing and Processing
|
| Presentation Title |
Evaluation of the Mechanical, Thermal and Microstructural Behaviour of Gum Arabic Reinforced Polylactide Fibre |
| Author(s) |
Victoria Dumebi Obasa, Olanrewaju Akanni Oludolapo, Isaiah Oluwaseun Owoyemi, Samson Oluropo Adeosun |
| On-Site Speaker (Planned) |
Samson Oluropo Adeosun |
| Abstract Scope |
Polylactic acid (PLA) wields unparalleled recognition amongst polymeric materials owing to its unique properties. Functionalising PLA with gum Arabic (GA) generates a composite with promising implications across industries. The study focused on developing PLA/GA fibres via an electrospinning technique. Introduction of ≥ 5 wt. % GA increased the Bragg's peak and lowered the XRD intensity of the composites to about 93% implying a reduction in crystallinity. The transformation from smooth to rough morphology of pure PLA to PLA/GA composite also confirmed a decrease in crystallinity impacting the composite's ultimate tensile strength (UTS) with about 49% drop below that obtained at 5 wt. % GA addition; this resulted in a ~ 78% increment in ductility. Notably, the thermal stability was improved from 220 to 300 OC GA additions. Composite produced at 30 wt.% GA suggests an optimum concentration since it produced the most uniform fibres with improved UTS of ~3.8MPa. |