Title Paraffin/CuO nanocomposites as phase change materials: Effect of surface modification of CuO
Date 18.11.2019
Number 57624
Abstract In this research, different loadings of copper oxide (CuO) nanoparticles (0.5, 1 and 3 wt%) were utilized to fortify the thermal conductivity of paraffin. In order to improve dispersion and inhibit nanofiller agglomeration, the surface of CuO nanoparticles was treated with trimethoxy octadecyl silane. Surface treatment of CuO nanoparticles was validated by Fourier transform infrared spectroscopy and thermogravimetric analysis. The scanning electron microscopy results revealed that the samples loaded with the surface treated CuO had proper dispersion, even up to 3 wt% of loading. Rheological results showed that CuO inclusion and particularly its treatment increased the viscosity of paraffin. Differential scanning calorimetry results exhibited that latent heat of pure paraffin slightly diminished by inclusion of untreated CuO nanoparticles, while inclusion of the treated nanoparticles led to less reduction in latent heat of paraffin. The thermal conductivity (KD2 test) results revealed that CuO inclusion, particularly the treated CuO, increased the thermal conductivity of paraffin over 2–fold. All in all, this research study corroborates the potential of the treated CuO nanoparticles to produce paraffin–based composite phase change materials with improved performance.
Publisher Polymer Composites
Citation Polymer Composites 40 (2019) 4362-4370
Authors Noori, M.M. ; Khonakdar, H. A. ; Azizi, M. ; Ghaffati, M. ; Arjmand, M. ; Jafari, S.H.

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