<> "The repository administrator has not yet configured an RDF license."^^ . <> . . . "The influence of covalent and non-covalent functionalization of GNP based nanofluids on its thermophysical, rheological and suspension stability properties"^^ . "Covalent functionalization (CF-GNPs) and non-covalent functionalization (NCF-GNPs) approaches were applied to prepare graphene nanoplatelets (GNPs). The impact of using four surfactants (SDS, CTAB, Tween-80, and Triton X-100) was studied with four test times (15, 30, 60, and 90 min) and four weight concentrations. The stable thermal conductivity and viscosity were measured as a function of temperature. Fourier transform infrared spectroscopy (FTIR), thermo-gravimetric analysis (TGA), X-ray diffraction (XRD) and Raman spectroscopy verified the fundamental efficient and stable CF. Several techniques, such as dispersion of particle size, FESEM, FETEM, EDX, zeta potential, and UV-vis spectrophotometry, were employed to characterize both the dispersion stability and morphology of functionalized materials. At ultrasonic test time, the highest stability of nanofluids was achieved at 60 min. As a result, the thermal conductivity displayed by CF-GNPs was higher than NCF-GNPs and distilled water. In conclusion, the improvement in thermal conductivity and stability displayed by CF-GNPs was higher than those of NCF-GNPs, while the lowest viscosity was 8 higher than distilled water, and the best thermal conductivity improvement was recorded at 29.2. © 2019 The Royal Society of Chemistry."^^ . "2019" . . "9" . "66" . . "Royal Society of Chemistry"^^ . . . "RSC Advances"^^ . . . "20462069" . . . . . . . . . . . . . . . . . . . . . . "A.S."^^ . "Muhsan"^^ . "A.S. Muhsan"^^ . . "K."^^ . "Habib"^^ . "K. Habib"^^ . . "O.A."^^ . "Hussein"^^ . "O.A. Hussein"^^ . . "O.A."^^ . "Alawi"^^ . "O.A. Alawi"^^ . . "R."^^ . "Saidur"^^ . "R. Saidur"^^ . . "S."^^ . "Shahabuddin"^^ . "S. Shahabuddin"^^ . . . . . "HTML Summary of #11989 \n\nThe influence of covalent and non-covalent functionalization of GNP based nanofluids on its thermophysical, rheological and suspension stability properties\n\n" . "text/html" . .