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Recommended Papers for: graphene

Total Papers Found: 34

Thermodynamic properties and thermal stability of ionic liquid-based nanofluids containing graphene as advanced heat transfer fluids for medium-to-high-temperature applications

The purpose of this study was to measure the thermodynamic properties of 1-hexyl-3-methylimidazolium tetrafluoroborate ([HMIM]BF4) and its graphene-dispersed ionic liquid based nanofluids (Ionanofluids) from room temperature to 200 °C. A thermal analyzer measured the thermal conductivity of the samples using the transient plane source (TPS) method. Results showed that the thermal conductivity of [HMIM]BF4 and the GE-dispersed Ionanofluids increased linearly with temperature, and with mass particle fraction. It ...

Author(s): , , , ,

Thermal conductivity enhancement of epoxy adhesive using graphene sheets as additives

In this study, various filler loadings of thin graphite sheets were added to epoxy adhesives to improve thermal conductivity. Natural graphite powder and graphite nanoflakes were used as reference fillers in the same resin, and the thermal conductivity of each filler was measured with a TPS thermal constants analyzer based on the transient plane source (TPS) method. Results showed that the graphene sheets enhanced the thermal conductivity by more than 22 ...

Author(s): , , ,

Preparation and properties of carbon nanotube/binary-polymer composites with a double-segregated structure

Conductive polymer composites (CPCs) contain high concentrations of carbon nanotubes (CNTs) to maximize electrical conductivity. However, high nanoparticle concentrations degrade other important properties of CPCs. This study produced CPCs using ultrahigh molecular weight polyethylene (UHMWPE) fillers in place of CNTs in an attempt to maintain important physical and mechanical properties. A thermal analyzer measured the thermal conductivity of the CPC samples using the transient plane source (TPS) method. Results showed ...

Author(s): , , , , , , ,

The heat is on: graphene applications

As electronic devices approach nanometer scales, heat distribution becomes nonuniform and hot spots begin to form. Integrating graphene into nanoelectronics enhances thermal conductivity and heat flow which mitigates hot spots. In this experiment, large quantities of graphene were produced and thermal conductivity was measured by the transient plane source (TPS) method using an instrument. Results showed that the addition of graphene greatly improved the thermal conductivity of the thermal interface ...

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Dispersion and exfoliation of graphene in rubber by an ultrasonically-assisted latex mixing and in situ reduction process 

In this paper, natural rubber (NR)/graphene (GE) composites were prepared using an ultrasonically-assisted latex mixing and in situ reduction (ULMR) process. A thermal constants analyzer measured the thermal conductivity of the NR/GE composites using the transient plane source (TPS) method. Results showed that GE had a good thermal conductivity, and can be used as a thermal conductivity enhancer in polymers....

Author(s): , , , , ,