Role of sonication time on thermal behaviour and dynamic mechanical analysis of NiZn ferrite incorporated PLA/LNR nanocomposite

Abstract

The investigation on thermal properties of polylactic acid/liquid natural rubber (PLA/LNR) blend embedded with nickel zinc (NiZn) ferrite nanoparticles at various loading (1-5 wt%) and treated with different ultrasonication time (1-2 h) is the main core of this study. The novel NiZn nanocomposite based on the matrix of PLA:LNR with a ratio of 90:10 was fabricated via melt blending technique with the aids of ultrasonication. The effects of nanofiller loading and ultrasonic treatment on nanocomposite were examined by scanning electron microscopy, differential scanning calorimetry and dynamic mechanical analyser. The results revealed that the thermal properties of PLA/LNR matrix have improved with incorporation of nanoparticles in which improvement was observed until an optimum level at 4 wt% NiZn ferrite within 1 h of ultrasonic treatment. The optimum ultrasonication for 1 h is believed to be sufficient to promote a good dispersion of NiZn ferrite nanoparticles within the PLA/LNR and in order to enhance the thermal stability, which makes it potentially to be used in electronic applications.

Mechanical performance and thermal stability of modified epoxy nanocomposite with low loading of graphene platelets

“…This means that the added nano‐scale particles of GNP had participated in filling those holes, which also implies the physical interaction between LENR and GNP. This observation is similar to the previous studies of LNR or LENR based matrix with nanoparticles such as nickel zinc ferrite 28 in PLA/LNR and GNP in PLA/LNR/polyaniline 29 . These morphology micrographs (Figure 6c–f) display a single‐phase structure in which this indicates the good interfacial interaction and adherence between GNP and epoxy/LENR matrix resin.…”

An Approach Towards Optimization Appraisal of Thermal Conductivity of Magnetic Thermoplastic Elastomeric Nanocomposites Using Response Surface Methodology

“…Bhd., natural rubber (NR) provided by Rubber Research Institute of Malaysia (RRIM), and liquid natural rubber (LNR). The later was prepared using photosensitized chemical degradation of natural rubber under visible light, as prescribed in previous works [ 38 , 39 , 40 , 41 , 42 ].…”

Assessment of Mechanical and Electrical Performances of Polylactic Acid/Liquid Natural Rubber/Graphene Platelets Nanocomposites in the Light of Different Graphene Platelets Functionalization Routes

“…Besides, some small holes and cavities are visibly observed, pointing to the presence of LNR that acted as toughening agent as agreed upon in earlier research work. [51] In Figure 7b, it is ostensible that the nanocomposite with 0.50 wt% loading of untreated GNPs exhibits separated phases one of which looks smooth, while the other is relatively of a rough surface with the appearance of some aggregates. The latter behavior is ascribed to lack of dispersion of GNPs in the polymer matrix, which is believed to be associated with inadequate low filler loading of GNPs.…”