| Autor: |
Sara Rostami, Rasool kalbasi, Roya Jahanshahi, Cong Qi, Salman Abbasian-Naghneh, Aliakbar Karimipour |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Journal of Materials Research and Technology, Vol 9, Iss 5, Pp 11905-11917 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2238-7854 |
| DOI: |
10.1016/j.jmrt.2020.07.105 |
| Popis: |
In this study, the effects of incorporating of SiO2 nanoparticles into the ethylene glycol on the viscosity were examined. Many samples were prepared by two-step method to investigate the effects of temperature (5–65 ℃), mass fraction (0.005−5 wt.%), shear rate (3–110 1s) and sonication time (15−60 min) on viscosity. Rheological analysis revealed that despite the EG Newtonian behavior, it was found that SiO2/EG conforms to the non-Newtonian shear-thinning model. However, as the shear rate raised, the behavior tends to Newtonian. For all samples, the viscosity of SiO2/EG was higher than EG viscosity. At higher temperature as well as mass fraction and the lowest shear rate, the maximum intensification in viscosity was reported to be 133.7%. The sonication energy diminishes clustering length and consequently reduces the viscosity. It was found that the increase in sonication time from 15 min to 60 min, diminished the viscosity up to 14%. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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