Carbon, the building block of life on Earth, also holds a pivotal role in the vast expanse of space. It forms the foundation of organic molecules and is present throughout the universe, influencing biological and technological realms. NASA’s recent discovery of the carbon-rich Bennu asteroid highlights carbon’s significant presence...
This article explored the thermal behavior of epoxy nanocomposites containing different types of nanofillers, such as 1-D Multiwall Carbon Nanotubes (MWCNTs) and 2-D predominant shape of Exfoliated Graphite nanoparticles (EG). The thermal conductivity measurements were conducted using a thermal constants analyzer which is based on the transient plane source (TPS) technique. The measurements indicated that better heat conduction is found in epoxy systems loaded with 2-D predominant shape of Exfoliated Graphite (EG) nanoparticles. This is a promising result for overcoming a critical drawback of composite materials that are often characterized by their low thermal conductivity which negatively impacts their use in the design of anti-icing systems.
This article studied the thermal conductivity of deionized (DI) water and ethylene glycol (EG) based nanofluids with varying temperatures for different volume fractions of N-(rGO-MWNTs) (nitrogen doped hybrid structure of reduced graphene oxide (rGO) and multiwalled carbon nanotubes (MWNTs)). The thermal conductivity was found by using the transient plane source (TPS) method by using a Thermal Analyser. From the experimental results, it was noted that the thermal conductivity of the nanofluids increased non-linearly with temperature and concentration.
The present study investigates the experimental characterization of cementitious materials combined with four different carbon nanofillers; multi walled carbon nanotubes (MWCNTs), carbon nanofibers (CNFs), carbon black (CB) and graphene nanoplatelets (GNPs). Measurements of thermal conductivity and thermal diffusivity were carried out using the Transient Plane Source (TPS) technique. MWCNTs were found to influence thermal conductivity when they were aligned, compared to randomly distributed. GNP paste exhibited the highest thermal conductivity.
Recently, 2-D graphene nanoparticles produced by graphite exfoliation are a promising nanofiller for enhancing the thermal conductivity of polymeric materials. Unlike one-dimensional structures of carbon nanotubes, the 2-D structure provides reinforcement of polymer nanocomposites in two directions. In this article, multiwall carbon nanotubes (MWCNTs) and 2-D exfoliated graphite (EG), in a tetrafunctional epoxy resin, are investigated to determine the effect on thermal conductivity. Thermal conductivity measurements were carried out using a thermal analyzer, with increasing thermal conductivity in nanocomposites filled with EG.