Rheology and microscopy analysis of polymer–surfactant complexes

Moud, Aref Abbasi

doi:10.1007/s00396-022-04982-2

Cited by 5 publications

(2 citation statements)

References 297 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These micelles will encapsulate the oil droplets that enter the aqueous phase. 13 Conventional surfactants consist of one terminal hydrophilic group and one hydrophobic group. 14 Gemini (or dimeric) surfactants are a relatively novel class of surfactants, which consist of more than one intermediate polarity group (as a spacer chain) chemically connected between two basic surfactant entities consisting of a hydrophobic tail and a hydrophilic head.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Cleaning Oil-Based Drilling Cuttings with Synthetic Gemini Surfactants

Yan,

Liu,

Hou

et al. 2024

ACS Omega

View full text Add to dashboard Cite

The chemical cleaning method is the simplest approach for degreasing oil-based drilling cuttings (ODCs), with the effectiveness of the treatment relying mainly on the selection of the surfactant and the cleaning conditions. However, achieving the standard treatment of ODCs directly using conventional surfactants proves challenging. In light of this, this study introduces a synthesized and purified Gemini surfactant named DCY-1. The structure of DCY-1 was confirmed through Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) analyses. The characterization in this article encompasses the use of an interface tension meter, nanoparticle size analysis, scanning electron microscopy, and infrared oil measurement. The critical micelle concentration (CMC) of DCY-1 was determined to be 3.37 × 10 −3 mol/L, with a corresponding γ cmc value of 37.97 mN/m. In comparison to conventional surfactants, DCY-1 exhibited a larger micelle size of 4.52 nm, approximately 24.52% larger than that of SDS. Moreover, the residual oil rate of 3.96% achieved by DCY-1 was the lowest among the chemical cleaning experimental results. Through a single-factor experiment, the optimal cleaning ability of DCY-1 for ODCs was determined as follows: a surfactant concentration of 3 mmol/L, a temperature of 60 °C, an ODC/ liquid mass ratio of 1:4, a cleaning duration of 40 min, and a stirring speed of 1000 rad/min. Under these optimal conditions and after merely two cleaning procedures, the residual oil content of ODCs was reduced to 1.64%, accompanied by a smooth and loose surface structure.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Second, the concentration of the free monomer no longer increases and a large number of micelles are produced when the surfactant concentration is above the CMC. These micelles will encapsulate the oil droplets that enter the aqueous phase …”

Section: Introductionmentioning

confidence: 99%