Sifat regangan dan terma matriks adunan asid polilaktik/cecair getah asli diperkuat nanozarah nikel zink ferit

Abstract

Magnetic polymer nanocomposites (MPNCs) based on poly(lactic acid)/liquid natural rubber (PLA/LNR) (90:10) blend and nickel zinc (NiZn) ferrite magnetic nanoparticles were fabricated via melt-blending technique. The effect of NiZn ferrite nanofiller concentration (1 – 5 wt.%) on the tensile and thermal properties of PLA/LNR/NiZn ferrite nanocomposites was investigated. Tensile tests showed that as the tensile strength and modulus increased with the increase of nanofiller concentration until the optimum values of nanofiller concentration was achieved. The thermal behaviour of MPNCs including degradation temperature and its shiftment as well as the remaining residues after complete degradation were determined by thermogravimetric analysis (TGA) measurement. As the NiZn ferrite nanofiller concentration increased, it was noted that the Tend of nanocomposites at low amount of nanofillers (1 – 2 wt.%) was higher than neat PLA/LNR and nanocomposites containing high concentration of nanofillers. The current work proves that NiZn ferrite could be served as an excellent reinforcement filer in PLA/LNR matrix. The improved tensile properties and thermal stability of PLA/LNR composites achieved at 2 – 3 wt.% NiZn due to the good dispersion of NiZn ferrite within the PLA/LNR matrix and strong filler-matrix interfacial adhesion, as can be confirmed by the scanning electron microscope (SEM).