Open AccessMechanical properties of Tungsten Tri-oxide (WO3) reinforced poly (lactic-acid) (PLA) nanocomposites
Author(s) -
M.L.M. Shaath,
Mahdi Ansari,
Noor Afeefah Nordin,
M.S.H. Al-Furjan
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1128/1/012030
Subject(s) - materials science , flexural strength , ultimate tensile strength , composite material , nanocomposite , flexural modulus , extrusion , composite number , young's modulus , injection moulding , izod impact strength test , lactic acid , brittleness , tungsten , metallurgy , genetics , biology , bacteria
In this paper, Tungsten trioxide reinforced poly (lactic acid) (PLA) blend nanocomposites were prepared using twin screw extrusion and injection moulding with different nanofillers concentrations (0.5wt%, 1wt%, 3wt%, and 5wt%) together mixed into a PLA matrix. Mechanical properties such as tensile and flexural properties were investigated. The tensile and flexural results indicate a noticeable enhancement in the mechanical strength of the PLA material. The WO 3 /PLA nanocomposites were compared with neat PLA to identify the attributes and loading effects on the mechanical behaviour of the nanocomposites. A high content of tungsten led to a brittle, fragile, and inelastic composite, while a lower content resulted in a high elastic modulus and stiffness of the composite. The composites reinforced with 3wt% of WO 3 has improved its tensile strength and flexural strength by 30.77% and 41.38% respectively. The extrusion stability and composite molten state were compromised in the presence of high concentration of tungsten while a lower percentage eased processing and injection.