Improvement of Mechanical and Dielectric Properties of Epoxy Resin Using CNTs/ZnO Nanocomposite

Abstract

In this study, carbon nanotubes (CNTs)/ZnO composites had been prepared using the sol-gel method and then incorporated into an epoxy resin for reinforcement of mechanical and electrical properties. Fourier Transform Infrared (FTIR), X-ray diffraction (XRD) Field Emission Scanning Electron Microscope (FE-SEM) analyses show that the ZnO nanoparticles deposited on CNTs were crystallized in a hexagonal wurtzite structure. Average particle size of ZnO deposited on the CNT was about 8 nm. The mechanical and dielectric properties of epoxy containing CNTs/ZnO were investigated in comparison to epoxy resin and epoxy resin containing only CNT or ZnO nanoparticles. The results indicated that tensile strength and elongation at break of the nanocomposite were substantially improved with the presence of CNTs/ZnO at the equal volume. The DSC analysis associate with the dielectric results shows that the behavior of epoxy/CNTs/ZnO is identical to epoxy/ZnO composite, and the CNTs is essential to the distributed arrangement of ZnO in the epoxy resin.

Nanocomposites of Poly(hydroxyurethane)s with Multiwalled Carbon Nanotubes: Synthesis, Shape Memory, and Reprocessing Properties

“…The improved dielectric properties are important for the application of the materials in the aspect of electric charge storage, transportation, and heat dissipation. 38,39 Compared to the neat PHU thermoset, the nanocomposites would display improved thermal conductivity owing to the introduction of CNTs. In this work, the thermal conductivity (λ) of the nanocomposites was measured.…”

“…In fact, the dielectric loss level of the nanocomposites was indeed low (<0.07), although they were slightly higher than that of the plain PHU. The improved dielectric properties are important for the application of the materials in the aspect of electric charge storage, transportation, and heat dissipation. , …”

Curing behavior, mechanical and thermal properties of epoxy‐CeO2 nanocomposites

“…[1][2][3][4][5][6][7][8] With the requirements improvement of these material performances, many studies have reported on the epoxy resin modification and particles reinforcement. [9][10][11][12][13][14][15] Some commonly used reinforcement particles of epoxy matrix are silica, alumina, and glass fillers. [16][17][18][19] Since the number of nanoparticles is far more than ordinary micro particles under the same volume; the ultra-high specific surface area gives the nanoparticles unique chemical properties.…”