Metal activated carbon as an efficient filler for high‐density polyethylene nanocomposites

Abstract

interesting properties of magnetic nanocomposites have attracted attention of both academic and industrial researchers. In this work, thermal, mechanical, morphological, and magnetic properties of polyethylene (PE) nanocomposites were inspected using carbon-based magnetic fillers (C Ni, C Co, and C Fe).The melt mixing method was employed to prepare the nanocomposites using small amounts of filler ranging up to 2 wt%. Wood sawdust pyrolysis produces carbonized material activated by Ni, Co, or Fe salts and used as filler. The structural analysis was carried out using Fourier transform infrared spectroscopy indicating that the polymer chemical structure remains unaltered with the filler addition. Thermal stability of nanocomposites as well as the determination of metal amount in the carbon-based fillers was investigated by thermogravimetric analysis. Filler introduction enhanced the onset and the maximum degradation temperatures up to 11 C and 8 C, respectively. The crystallization and melting temperatures examined by differential scanning calorimetry remained unchanged as compared to neat PE whereas the percent crystallinity was improved up to 8%. The incorporation of the filler leads to the improvement in the elastic modulus of the polymer matrix. The addition of 2.0 wt% of the metal-carbonized filler in the diamagnetic polymer resulted in a thermoplastic nanocomposite with ferromagnetic behavior.

Processing‐structure‐property relationship of multilayer graphene sheet thermosetting nanocomposites manufactured by calendering

“…Electroconductive polymer nanocomposites have an enormous range of applications such as strain sensing, flexible electronics, actuators, and smart materials with multifunctional and self-sensing/acting capabilities, among many others. [1][2][3][4] Carbon nanotubes (CNTs) and, more recently, multilayer graphene sheets (GSs) are two commonly used fillers for polymer nanocomposites. They possess extraordinary mechanical, electrical, and thermal properties [5,6] and have shown to noticeably enhance the mechanical and thermal properties of neat polymers.…”

Study of environmental behavior and its effect on solid particle erosion behavior of hierarchical porous activated carbon‐epoxy composite

“…In a similar study conducted on high density polyethylene nanocomposite reinforcement with metal activated carbon was found to increase thermal resistance as well as magnetic properties. [ 25 ]…”

“…In a similar study conducted on high density polyethylene nanocomposite reinforcement with metal activated carbon was found to increase thermal resistance as well as magnetic properties. [25] Literature findings suggest that the addition of activated carbon also seem to have enhanced thermal resistance of metal-matrix composite [26] and polymer matrix composites. [27,28] Examples of activated carbon being used for fabrication of composite coating was also found in literature.…”

Magnetically Stimulable Graphene Oxide/Polypropylene Nanocomposites

“…Figure b proves that with the addition of the filler, the sustainability of the chemical structure of PP was not altered, as it is clear from the characteristic PP spectrum. This proves the physical incorporation of the filler in the polymer rather than chemical linkage during nanocomposite blending …”

“…This proves the physical incorporation of the filler in the polymer rather than chemical linkage during nanocomposite blending. 54 A summary of the thermal performance of the polymeric nanocomposites is given in Table 2 and Figures 5 and 6. It can be observed from Table 2 that with the incorporation of NPs, the initial (T onset ) and maximum (T max ) degradation temperatures of the nanocomposites increase with respect to those of neat PP.…”