CO2-switchable surfactant-free microemulsion consisted of N,N-dimethylcyclohexylamine, ethanol and water
| Autor: | Xiaojiang Li, Dongfang Liu, Hongsheng Lu, Daixue Xu |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Ethanol
Polymers and Plastics Surfactant free Chemistry 02 engineering and technology 021001 nanoscience & nanotechnology Surfaces Coatings and Films Solvent chemistry.chemical_compound 020401 chemical engineering Microemulsion Ternary phase diagram 0204 chemical engineering Physical and Theoretical Chemistry 0210 nano-technology Nuclear chemistry |
| Zdroj: | Journal of Dispersion Science and Technology. 41:117-124 |
| ISSN: | 1532-2351 0193-2691 |
| DOI: | 10.1080/01932691.2018.1555482 |
| Popis: | N,N-Dimethylcyclohexylamine—a switchable-hydrophilicity solvent, ethanol and water could be used to prepare a CO2-switchable surfactant-free microemulsion (SFME). The ternary phase diagram was used to investigate the phase behavior of SFME. The electrical conductivity measurement, UV-visible spectra were used to investigate the microstructure and structural transition of SFME. Dynamic light scattering could be used to measure the diameter of SFME. The above results indicated that the microemulsion existed three microstructures: water-in-DMCHA (W/O), bicontinuous, and DMCHA-in-water (O/W). The variation tendency of electrical conductivity of SFME while CO2 and N2 alternately passing through was determinate, which proved SFME has excellent CO2-switchable performance. Residual oil rate that using the W/O SFME to clean oily drill cuttings is very low, and oil from cuttings can be recycled, which shows CO2-switchable SFME has much significance in washing oily drill cuttings. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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