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Investigations for magnetic properties of PLA-PVC-Fe 3 O 4 -wood dust blend for self-assembly applications
Ist Teil von
Journal of thermoplastic composite materials, 2021-07, Vol.34 (7), p.929-951
Erscheinungsjahr
2021
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
The use of ferro/ferri/paramagnetic materials for self-assembly is quite common, but the use of superparamagnetic materials has not been explored for such applications. In the present study, polylactic acid (PLA) matrix has been reinforced with polyvinyl chloride (PVC), wood dust, and Fe
3
O
4
particles (as superparamagnetic material) with twin screw extrusion (TSE) for the preparation of fused deposition modeling feedstock filament. The filament was tested for magnetic and mechanical properties whose results were analyzed and optimized for TSE parameters, and the regression model was used to find the effect of input parameters. The results of study suggest that the proportion as PLA 52.5 wt%, Fe
3
O
4
25 wt%, PVC 15 wt%, and wood dust 7.5 wt% with TSE torque of 0.12 Nm, screw temperature of 165°C, and load of 5 kg are the optimized condition for the magnetization property. From vibration sample magnetometer analysis, it has been observed that all the samples having Fe
3
O
4
in the matrix are of superparamagnetic character. Further, the magnetic and mechanical properties are not in correlation with each other for the blended samples which were counter verified by scanning electron microscopy and energy-dispersive spectroscopy analysis.