Microemulsion‐Based Vegetable Oil Detergency Using an Extended Surfactant

Abstract

This work examined the use of a single extended surfactant in the microemulsion-based detergency of vegetable oils. The results showed that good canola oil detergency ([80%) was achieved at 25°C using a single extended surfactant (C 14,15 -8PO-SO 4 Na) at concentrations as low as 125 ppm, i.e., significantly lower than the surfactant concentration range of 500-2,500 ppm reported in other microemulsion-based detergency work. It was found that the maximum detergency (95%) was achieved in the type II microemulsion region. These results demonstrate that the microemulsion-based extended surfactant formulation is a promising approach for vegetable oil detergency at low temperature.

Cold Water Detergency of Triacylglycerol Semisolid Soils: The Effect of Salinity, Alcohol Type, and Surfactant Systems

“…). Other researchers have observed a similar trend in increased detergency when the microemulsion phase approached the Winsor Type III region (Phan et al, ; Tongcumpou et al, ). The maximum solid coconut oil removal in the surfactant system at 10°C also corresponded to the formation of optimum middle phase microemulsion (Winsor Type III) with a minimum IFT of 0.064 mN m −1 at 30°C, as shown in Fig.…”

Laundry Detergency of Solid Non-Particulate Soil Using Microemulsion-Based Formulation

“…The lowest surfactant concentration at which the Type III microemulsion forms is known as the critical microemulsion concentration or CμC. The CμC value of this system was 0.015 wt at 5.3 wt NaCl which is consistent with the result of previous study 20 .…”

“…At 20 , which is below the oil melting point 30 , the level of oil removal detergency efficiency was around 30 and 40 for the polyester and cotton, respectively, which was much lower than at 40 for both fabrics. Moreover, the effect of added NaCl on the removal of the solidified oil at 20 was negligible for both test fabrics. The oil redeposition on both test fabrics did not significantly change with changes in the NaCl concentration Fig.…”

“…The aqueous surfactant solution and oil were added at a 1:1 v/v ratio to a series of 15-ml flat-bottomed screw-capped tubes 1,19,20,24 . Extended surfactant mixture systems were formulated at a high surfactant concentration of 4 wt with different concentrations of SMDNS from 0-1 and different NaCl concentrations in order to find a minimum hydrophilic linker and salinity for formation of a Winsor Type III microemulsion.…”

Analysis of Cleaning Process for Several Kinds of Soil by Probability Density Functional Method

“…Srivastava studied the removal of oily soil components from commercially available soiled fabrics using a commercial nonionic surfactant system 14 and Phan studied the removal of vegetable oil using an extended surfactant 15 . Tongcumpou studied the removal of triolein by using a surfactant mixture system composed of a nonionic surfactant and two anionic surfactants 16 .…”