Dataset Available

Dataset for: Interfacial Effects and Emulsion Stabilization by In Situ Surfactant Generation through the Saponification of Esters

Authors: Kristin Powell, Anuj Chauhan
Published On: Oct 12 2016 20:36 UTC
DOI: https://doi.org/10.7266/N7V69GMH
UDI: R2.x216.000:0031
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No. of Files: 7

File Size: 29.15 MB

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Project Information

Funded By:
Gulf of Mexico Research Initiative

Funding Cycle:
RFP-II

Research Group:
Multifunctional Colloidal Particles as Dispersants for Maximizing Biodegradation of Crude Oil

Point of Contact

Anuj Chauhan
University of Florida / Department of Chemical Engineering
chauhan@che.ufl.edu

Theme keywords

In situ dispersant generation, Emulsification, Interfacial tension, Interfacial rheology

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Abstract:

This data set includes dynamic oil-water interfacial tension and dynamic air-oil surface tension measurements using a Kruss DSA 100 tensiometer. Measurements were conducted to explore the reaction dynamics of and emulsion stabilization by surfactants that are created at interfaces during emulsification and pendant drop testing. Specifically, measurements of dynamic interfacial tension for stagnant and oscillatory pendant drops were combined with emulsion stabilization experiments to obtain insight on the rate and extent of reaction in emulsion systems for commonly used oil phases.

Suggested Citation:

Kristin Powell, Anuj Chauhan. 2016. Dataset for: Interfacial Effects and Emulsion Stabilization by In Situ Surfactant Generation through the Saponification of Esters. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7V69GMH

Publications:

Powell, K. C., & Chauhan, A. (2016). Interfacial effects and emulsion stabilization by in situ surfactant generation through the saponification of esters. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 504, 458–470. doi:10.1016/j.colsurfa.2016.06.002

Purpose:

The effectiveness of an in situ-generated dispersant depends on the extent and dynamics of reaction as well as the generated dispersant's ability to lower interfacial tension and stabilize emulsion droplets over time. Thus, pendant drop tensiometry techniques were combined with emulsification experiments to explore these properties and to demonstrate that the rate of dispersant production depends on the available surface area.

Data Parameters and Units:

Time is reported in [h:m:s]. All interfacial tensions are reported in [mN/m]. All drop volumes are reported in [microliters]. All drop surface areas are reported in [sq. mm]. Drop Base Diameter is reported in [mm]. The angle theta is reported in [degrees]. Fit error is reported in [micrometers]. Percent of Initial Concentration (%). Equilibrium Interfacial Tension (mN/m). 2 standard deviations (mN/m).

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