Emulsification by Surfactants

Rosen, Milton J.; Kunjappu, Joy T.

doi:10.1002/9781118228920.ch8

Cited by 5 publications

(3 citation statements)

References 65 publications

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“…To put it another way, a low HLB value denotes a strong affinity for oil, whereas a high HLB value denotes a high water solubility. This means that while surfactants with HLB values of 3-8 stabilize W/O emulsion, those with HLB values of 9-12 stabilize O/W emulsion 27,28 .…”

Section: Assessment Methods Of Cutting Oil Formulasmentioning

confidence: 99%

“…The kind of prepared emulsion is greatly influenced by the surfactant's HLB value, making it a crucial variable in the emulsion preparation process. Accordingly, choosing an appropriate HLB value is necessary to create an emulsion with a particular set of properties [27][28][29] . Three mechanisms: creaming, flocculation, and coalescence, are generally thought to control the emulsion separation process 7 .…”

Section: Effect Of Hydrophile Lipophile Balance "Hlb" Of the Prepared...mentioning

confidence: 99%

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Performance of new synthesized emulsifiers in ecofriendly metal cutting fluid formulations

Elsharaky,

Mishrif,

El-Tabei

et al. 2024

Sci Rep

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This study aims to prepare mono and gemini nonionic emulsifiers differing in HLB to utilize in formulated metal cutting fluids. Also, the cationic gemini surfactant (GCS) was prepared and applied as a corrosion inhibitor and biocide in the formulations. FT-IR and NMR confirmed the chemical structure of the prepared compounds. Different oil package formulations were prepared by adding different trial concentrations of the additives (emulsifier, corrosion inhibitor, coupling agent, and biocide) to the eco-friendly vegetable oil (castor oil). Standard procedures were performed to assess the stability of the formulated base oil packages. Six Formulas demonstrated the greatest oil stability. Oil in water emulsions with varying formulated oil ratios (5–15 wt%) were prepared. A standard test was carried out to evaluate their performance as emulsion stability. It’s been demonstrated that Formulas II and V produced stable emulsions. The wettability alteration of formulas II and V on different metal surfaces was evaluated. The droplet size of formulated castor oil in water was determined via DLS. Corrosion test and tribological properties were also performed. The findings of this study indicate that Formula V is a good choice as a renewable addition for enhancing a variety of performance characteristics of the water-based cutting fluid.

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Section: Assessment Methods Of Cutting Oil Formulasmentioning

confidence: 99%

Section: Effect Of Hydrophile Lipophile Balance "Hlb" Of the Prepared...mentioning

confidence: 99%

Performance of new synthesized emulsifiers in ecofriendly metal cutting fluid formulations

Elsharaky,

Mishrif,

El-Tabei

et al. 2024

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The surfactant is an amphiphilic molecule able to reduce the oil/water interfacial tension and it forms an electrostatic and steric barrier at the interface between two liquids [2]. The mechanism of the particle stabilization is different: partial wetting of the surface of the solid particles by water and oil is the origin of the strong anchoring of solid particles at the oil-water interface [3,4] acting as a barrier against coalescence [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%