Investigation of Stabilization Mechanism of Glycerol Monooleate in Water-in-oil Emulsions Using FTIR and Thermal Analysis

2021 ◽  
Author(s):  
Maria Romero-Pena ◽  
Supratim Ghosh
Keyword(s):  
Thermal Analysis ◽  
Stabilization Mechanism ◽  
Oil Emulsions ◽  
Glycerol Monooleate

scholarly journals Rheological properties and flow behaviour of wax-stabilized water-in-oil emulsions

2021 ◽  
Author(s):  
Samira Haj-Shafiei
Keyword(s):  
Rheological Properties ◽  
Initial Temperature ◽  
Rheological Behaviour ◽  
Flow Behaviour ◽  
Paraffin Wax ◽  
Oscillatory Rheology ◽  
Initial Deposition ◽  
Oil Emulsions ◽  
Light Mineral ◽  
Glycerol Monooleate

The objective of this study was to characterize the flow and rheological behaviour of model wax-stabilized water-in-oil (W/O) emulsions consisting of light mineral oil, paraffin wax and glycerol monooleate as the oil phase and water as the dispersed aqueous phase. An[sic] laboratory-scale benchtop flowloop system was used to explore the flow behaviour of the emulsions' oil phase (oil, paraffin wax and surfactant). The key contribution from this work was that the higher initial temperature gradient (40°C compared to 19°C) experienced by the rapidly-cooled oil led to more initial deposition on the flowloop inner wall. The rheological properties of W/O emulsions with different water cuts (10-50wt%) were also studied. Rotational, oscillatory rheology and creep compliance and recovery were characterized on emulsions aged up to 28 days. Overall, the results demonstrated that emulsion composition, and age could significantly influence an emulsion's flow behaviour and rheological properties.

scholarly journals Rheological properties and flow behaviour of wax-stabilized water-in-oil emulsions

2021 ◽  
Author(s):  
Samira Haj-Shafiei
Keyword(s):  
Rheological Properties ◽  
Initial Temperature ◽  
Rheological Behaviour ◽  
Flow Behaviour ◽  
Paraffin Wax ◽  
Oscillatory Rheology ◽  
Initial Deposition ◽  
Oil Emulsions ◽  
Light Mineral ◽  
Glycerol Monooleate

The objective of this study was to characterize the flow and rheological behaviour of model wax-stabilized water-in-oil (W/O) emulsions consisting of light mineral oil, paraffin wax and glycerol monooleate as the oil phase and water as the dispersed aqueous phase. An[sic] laboratory-scale benchtop flowloop system was used to explore the flow behaviour of the emulsions' oil phase (oil, paraffin wax and surfactant). The key contribution from this work was that the higher initial temperature gradient (40°C compared to 19°C) experienced by the rapidly-cooled oil led to more initial deposition on the flowloop inner wall. The rheological properties of W/O emulsions with different water cuts (10-50wt%) were also studied. Rotational, oscillatory rheology and creep compliance and recovery were characterized on emulsions aged up to 28 days. Overall, the results demonstrated that emulsion composition, and age could significantly influence an emulsion's flow behaviour and rheological properties.

Active Interfacial Modifier: Stabilization Mechanism of Water in Silicone Oil Emulsions by Peptide−Silicone Hybrid Polymers

Langmuir ◽  
2010 ◽  
Vol 26 (8) ◽  
pp. 5349-5354 ◽  
Author(s):  
Kenichi Sakai ◽  
Ryosuke Ikeda ◽  
Suraj Chandra Sharma ◽  
Rekha Goswami Shrestha ◽  
Naoko Ohtani ◽  
...  
Keyword(s):  
Silicone Oil ◽  
Stabilization Mechanism ◽  
Hybrid Polymers ◽  
Oil Emulsions ◽  
Interfacial Modifier

On the Stabilization Mechanism of Water-in-Oil Emulsions in Petroleum Systems

2005 ◽  
Vol 19 (5) ◽  
pp. 2074-2079 ◽  
Author(s):  
Jan Czarnecki ◽  
Kevin Moran
Keyword(s):  
Stabilization Mechanism ◽  
Petroleum Systems ◽  
Oil Emulsions

scholarly journals Study on the stabilization mechanism of crude oil emulsion with an amphiphilic polymer using the β-cyclodextrin inclusion method

RSC Advances ◽  
2017 ◽  
Vol 7 (14) ◽  
pp. 8156-8166 ◽  
Author(s):  
Yao Lu ◽  
Wanli Kang ◽  
Jiatong Jiang ◽  
Jun Chen ◽  
Derong Xu ◽  
...  
Keyword(s):  
Crude Oil ◽  
Amphiphilic Polymers ◽  
Amphiphilic Polymer ◽  
Stabilization Mechanism ◽  
Oil Emulsion ◽  
Cyclodextrin Inclusion ◽  
Inclusion Method ◽  
Oil Emulsions

The β-cyclodextrin inclusion method to investigate crude oil emulsions stabilized by amphiphilic polymers is proposed.

scholarly journals Effect of Water Content and Pectin on the Viscoelastic Improvement of Water-in-Canola Oil Emulsions

Fluids ◽  
2021 ◽  
Vol 6 (6) ◽  
pp. 228
Author(s):  
Maria Romero-Peña ◽  
Supratim Ghosh
Keyword(s):  
Water Content ◽  
Aqueous Phase ◽  
Canola Oil ◽  
Continuous Phase ◽  
Gel Strength ◽  
Water Droplets ◽  
Improved Stability ◽  
Oil Emulsions ◽  
Hydrogenated Soybean Oil ◽  
Glycerol Monooleate

This study aimed to investigate gelation in glycerol monooleate (GMO)-stabilized water-in-canola oil (W/CO) emulsions by increasing water content (20–50 wt.%) and the addition of low methoxyl pectin (LMP) in the aqueous phase. A constant ratio of GMO to water was used to keep a similar droplet size in all emulsions. Hydrogenated soybean oil (7 wt.%) was used to provide network stabilization in the continuous phase. All fresh emulsions with LMP in the aqueous phase formed a stable and self-supported matrix with higher viscosity and gel strength than emulsions without LMP. Emulsion viscosity and gel strength increased with an increase in water content. All emulsions showed gel-like properties (storage moduli (G’) > loss moduli (G’’)) related to the presence of LMP in the aqueous phase and increased water content. Freeze/thaw analysis using a differential scanning calorimeter showed improved stability of the water droplets in the presence of LMP in the aqueous phase. This study demonstrated the presence of LMP in the aqueous phase, its interaction with GMO at the interface, and fat crystals in the continuous phase that could support the water droplets’ aggregation to obtain stable elastic W/CO emulsions that could be used as low-fat table spreads.

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