Drop retraction methods are popular means of measuring the interfacial tension between immiscible polymers. Experiments show that two different drop retraction methods, imbedded fiber retraction (IFR) and deformed drop retraction (DDR), give inconsistent results when a surfactant is present on the surface of the drop. These inconsistencies are deemed to be due to dilution of the surfactant and ...

OBJECTIVES To assess the effect of interfacial surface roughness on the flexure strength and fracture mode and origin utilizing an in-vitro assessment of the clinical failure conditions expected for all-ceramic crowns and the connector area of fixed partial dentures (FPDs) using bilayered ceramic specimens tested in bi-axial flexure. METHODS Sets of 20 bilayered composite discs, with core:den...

Abstract The effects of the main components crude oil, especially resin and asphaltene fractions, are essential concerns for efficient enhanced oil recovery (EOR) processes, during chemical injection processes. This importance comes from nature these two fractions which can act as surface active agents with undeniable on used interfacial tension (IFT) reduction wettability alteration. In this w...

The injection from a well to other wells can be difficult in extralow-permeability oil reservoirs. In order address this issue, method of cyclic huff-n-puff with surfactants based on complex fracture networks for single horizontal was proposed and then investigated terms the effects parameters recovery water-wet models. Firstly, interfacial tension (IFT) contact angle different surfactant conce...

Unlocking oil from tight reservoirs remains a challenging task, as the existence of fractures and oil-wet rock surfaces tends to make recovery uneconomic. Injecting gas in form foam is considered feasible technique such for providing conformance control reducing gas-oil interfacial tension (IFT) that allows injected fluids enter matrix. This paper presents modeling strategy aims understand beha...

[1] The interfacial interaction between mineral surfaces and immiscible fluids determines the efficiency of enhanced oil or gas recovery operations as well as our ability to inject and store CO2 in geological formations. Previous studies have shown that the interfacial tension and contact angle in CO2‐water‐mineral systems change noticeably with fluid pressure. We compile previous results and e...

Due to the diversity of alkali categories and reservoir conditions, varied oil recovery driving mechanism alkaline flooding is subjected different types emulsion generation. In this study, a modified bottle test method that assesses major type formation for preliminary prediction performance in introduced. The considers necessary energy input required mixing immiscible bulk phases at low interf...

We investigate the thermal fluctuations of the colloidal gas-liquid interface subjected to a shear flow parallel to the interface. Strikingly, we find that the shear strongly suppresses capillary waves, making the interface smoother. This phenomenon can be described by introducing an effective interfacial tension that increases with the shear rate. The increase of sigma(eff) is a direct consequ...

−The concentrationand time-dependence of interfacial pressure of nisin and β-casein at an n-hexadecane-water interface were evaluated by using DuNoüy tensiometry. The two emulsifiers attained interfacial saturation at a bulk concentration of about 0.1 mg/ml, the reduction of the interfacial tension by nisin at that concentration being about equivalent to that of β-casein. The time dependence of...

Experimental data on interfacial tension of 42 binary liquid-liquid systems using water, aqueous glycerol, aqueous polymeric solutions of polyvinylpyrrolidone (PVP), poly(ethylene oxide) (PEO), carboxymethyl cellulose (CMC) and polyacrylamide (PAM) as continuous phase, and carbon tetrachloride, chlorobenzene, bromobenzene, nitrobenzene, nitrotoluene and ethyl chloroacetate as dispersed phase at...