Wax adsorption at paraffin oil–water interface stabilized by Span80
| Autor: | Qianli Ma, Bohui Shi, Yang Liu, Jing Gong, Wei Wang, Juheng Yang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Polarized light microscopy
Wax Materials science Nanotechnology 02 engineering and technology Dynamic mechanical analysis 021001 nanoscience & nanotechnology law.invention Viscosity Colloid and Surface Chemistry Adsorption 020401 chemical engineering Magazine Pulmonary surfactant Rheology Chemical engineering law visual_art visual_art.visual_art_medium 0204 chemical engineering 0210 nano-technology |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 518:73-79 |
| ISSN: | 0927-7757 |
| DOI: | 10.1016/j.colsurfa.2017.01.023 |
| Popis: | In this work, wax adsorption at the water–oil interface was studied. Through a polarizing microscope, interfacial adsorption of wax crystals was observed. The cause of the adsorption was proposed to be the synergistic effect between surfactant and wax. An additional experiment, an interfacial rheology test, validated the synergistic effect, showing that wax adsorption enhances the interfacial storage modulus and changes interfacial viscosity. The interfacial storage modulus increased with the decrease in temperature, which implies that the amount of wax adsorption increased at the interface, in agreement with the findings observed with the microscope. Temperature and wax content are two factors that affect interfacial rheology. |
| Databáze: | OpenAIRE |
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