Characterization of linear low-density polyethylene with graphene as thermal energy storage material
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Physics Publishing helen.craven@iop.org
Abstract
In this work authors reported the preparation and characterization of composite phase change material (CPCM) using the direct-synthesis method by blending the Linear low-density polyethylene (LLDPE) with Carboxyl Functionalized Graphene (f-Gr). LLDPE is selected as base material and f-Gr is dispersed into three different concentrations 1.0, 3.0, and 5.0 wt% and referred as CPCM-1, CPCM-2 and CPCM-3 respectively. Experimental analysis is carried out through Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) and Differential scanning calorimeter (DSC). The preset study assesses the influences of nanoparticle concentration on thermophysical properties, thermal performance and thermal storage characteristics of CPCMs. Results show that addition of f-Gr improves the thermal conductivity and latent heat of fusion of LLDPE. However, f-Gr slightly reduces the melting temperature and decreased the crystallization temperature. Therefore, this study reveals that f-Gr, addition to LLDPE has substantial potential for improving the thermal energy storage performance. © 2019 IOP Publishing Ltd.
Description
Keywords
Blending, Differential scanning calorimetry, Fourier transform infrared spectroscopy, Graphene, Heat storage, Heat transfer, Linear low density polyethylenes, Nanoparticles, Phase change materials, Polyethylenes, Scanning electron microscopy, Thermal conductivity, Thermal energy, Carboxyl-functionalized, Composite phase change materials, Crystallization temperature, Differential scanning calorimeters, Direct synthesis method, Heat Transfer enhancement, Nanoparticle concentrations, Thermal storage, Storage (materials)
Citation
Materials Research Express, 2019, 6, 6, pp. -