Results 11 to 20 of about 139,029 (201)

Use of the pendant drop method to measure interfacial tension between molten polymers

open access: yesMaterials Research, 1999
In this paper the pendant drop method to measure interfacial tension between molten polymers is reviewed. A typical pendant drop apparatus is presented. The algorithms used to infer interfacial tension from the geometrical profile of the pendant drop are
Emerson Y. Arashiro   +1 more
doaj   +1 more source

Effect of Temperature on the Dynamic Properties of Mixed Surfactant Adsorbed Layers at the Water/Hexane Interface under Low-Gravity Conditions

open access: yesColloids and Interfaces, 2020
An increase in temperature typically leads to a decrease in the interfacial tension of a water/oil interface. The addition of surfactants to the system can complicate the situation significantly, i.e., the interfacial tension can increase or decrease ...
Volodymyr I. Kovalchuk   +11 more
doaj   +1 more source

Effects of concentration and chain length of the sequence copolymer on interfacial properties of homopolymers/sequence copolymers ternary blends: A DPD simulation study.

open access: yesPLoS ONE, 2022
The effect of the concentration and chain length of the copolymer AB with sequence length τ = 8 on the interfacial properties of the ternary mixtures A10/AB/B10 are investigated by the dissipative particle dynamics (DPD) simulations. It is found that: i)
Dongmei Liu   +7 more
doaj   +1 more source

Determination of the Minimum Miscible Pressure of the Supercritical Carbon Dioxide and the Formation Oil System by the Pendant Drop Method [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
Carbon dioxide miscible displacement plays an important role in the field of miscible displacement for enhanced oil recovery. However, there is a very important relationship between the formation of miscible displacement and the minimum miscible pressure.
Yuejun Zhao   +4 more
doaj   +1 more source

Effect of Coconut Protein and Xanthan Gum, Soybean Polysaccharide and Gelatin Interactions in Oil-Water Interface

open access: yesMolecules, 2022
We report on our study of the interactions between coconut protein extracted from coconut meat and three hydrocolloids (gelatin, xanthan gum, and soybean polysaccharide) and their interfacial adsorption and emulsification properties.
Yi Yang, Dong Xiang
doaj   +1 more source

Performance evaluation of temperature-resistant nano-surfactants [PDF]

open access: yesE3S Web of Conferences, 2022
Surfactant flooding is a common technique in tertiary oil recovery. However, due to the high temperature of some reservoirs and the strong heterogeneity caused by their own geological conditions, the use of common surfactants in high-temperature ...
Wang Qunyi   +6 more
doaj   +1 more source

Fundamentals of interfacial wettability in ironmaking and steelmaking

open access: yes工程科学学报, 2018
There are various interfacial phenomenona in ironmaking and steelmaking, including slag foaming, nucleation, aggregation, removal of inclusions in steel, and refractory corrosion.
CHENG Li-mei, ZHANG Li-feng, SHEN Ping
doaj   +1 more source

Effect of hydrophobic modification of cellulose nanocrystal (CNC) and salt addition on Pickering emulsions undergoing phase-transition

open access: yesCarbohydrate Polymer Technologies and Applications, 2022
The charge density of emulsifiers determines the thermodynamics and kinetics adsorption properties at the oil-water interface of an emulsion. This study examines the rupture resistance and stability of the crystallized dispersed phase based on the ...
Parinaz Ataeian   +3 more
doaj   +1 more source

Synthesis and Performance Evaluation of a Betaine Surfactant [PDF]

open access: yesE3S Web of Conferences, 2020
Using sodium bisulfite and epichlorohydrin as raw materials, the ring-opening reaction is carried out under the action of acatalyst to produce sodium 3-chloro-2-hydroxypropane sulfonate, followed by dodecyl tertiary amine, isopropanol, sodium hydroxide ...
Zhang Rongjun   +5 more
doaj   +1 more source

The Effect of a Novel Surface Modified Nanoparticles on Wettability Alteration and Enhanced Oil Recovery [PDF]

open access: yesChemical Process Design
Recently, nano-fluids (N-fluids) have emerged as cost-effective and efficient materials for enhanced oil recovery (EOR). In this context, N-fluids have shown significant potential in altering the wettability of carbonate rocks and reducing the ...
Ehsan Jafarbeigi
doaj   +1 more source

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