Surface tension and interfacial compositions of binary glycerol/alcohol mixtures

Erfani, Amir; Khosharay, Shahin; Aichele, Clint P.

doi:10.1016/j.jct.2019.03.014

Cited by 22 publications

(14 citation statements)

References 49 publications

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“…showing that surface tension stays roughly constant up to ∼70% glycerol content, and then ramps up very rapidly to high values (Figure S8). 18 The surface tension of glycerol is three times higher than that of pure i-PrOH. Thus, there will be a significant gradient in surface tension across the meniscus due to i-PrOH evaporation.…”

Section: Resultsmentioning

confidence: 98%

The effect of solvent on convectively‑driven silica particle assembly: Decoupling surface tension, viscosity, and evaporation rate

Roach

Gao

Laurichesse

et al. 2023

Preprint

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The process of convectively self‑assembling particles in films suffers from low reproducibility due to its high dependency on particle concentration, as well as a variety of interactions and physical parameters. Inhomogeneities in flow rates and instabilities at the air‑liquid interface are mostly responsible for reproducibility issues. These problems are aggravated by adding multiple components to the dispersion, such as binary solvent mixtures or surfactant/polymer additives, both common approaches to control stick‑slip behavior. When an additive is used, not only does it change the surface tension, but also the viscosity and the evaporation rate. Worse yet, gradients can be formed in these three properties, which then lead to Marangoni currents. Here, we use a series of alcohols to study the role of viscosity independently of other solvent properties, to show its impact on stick‑slip behavior and interband distances. We show how mixtures of glycerol and alcohol, or poly(acrylic acid) and alcohol lead to more complex patterning. Marangoni currents are not always observed in co‑solvent systems, being dependent on the rate of solvent evaporation. To produce homogenous particle assemblies and control stick‑slip behavior, gradients must be avoided, and the surface tension and viscosity need both be carefully controlled.

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Section: Resultsmentioning

confidence: 98%

The effect of solvent on convectively‑driven silica particle assembly: Decoupling surface tension, viscosity, and evaporation rate

Roach

Gao

Laurichesse

et al. 2023

Preprint

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“…According to Sega’s research, the value of the entire surface tension of liquid mainly came from the first molecular layer, and the contribution of the inner molecular layer to the surface tension relative to the first molecular layer was very small or even negligible. Currently, there were many models for the analysis of surface tension calculations for different binary alcohols. − The surface tension was mainly determined by the ratio of different components in the mixture and the interaction between different molecules. In the mixed solvent, due to the larger surface tension of 2,3-BD and the stronger intermolecular force, the interaction between 2,3-BD molecules would be much stronger than the interaction with the IPA molecules.…”

Section: Resultsmentioning

confidence: 99%

“…Currently, there were many models for the analysis of surface tension calculations for different binary alcohols. − The surface tension was mainly determined by the ratio of different components in the mixture and the interaction between different molecules. In the mixed solvent, due to the larger surface tension of 2,3-BD and the stronger intermolecular force, the interaction between 2,3-BD molecules would be much stronger than the interaction with the IPA molecules. Thus, the IPA molecules were more inclined to be adsorbed to the liquid surface.…”

Section: Resultsmentioning

confidence: 99%

Morphological Regulation of Printed Low-Temperature Conductive Ink

Liu

Guo²,

et al. 2022

Langmuir

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The unbalanced evaporation of solvents in lowtemperature sintered inks for printed electronics leads to a series of problems in the actual printing process, including printed pattern distortion, surface cracking, and the coffee ring effect, which has become a serious obstacle to this technique. Here, we present a comprehensive investigation of the influence of the solvent composition, environmental, and sintering conditions on the complicated pattern formation process of reactive silver inks. The results first showed that only inks with a certain wettability of solvents could form well-defined patterns. Then, the solvent composition and ambient humidity can be adjusted to balance the nonequilibrium evaporative flow within the liquid and thus to obtain a flat liquid film. Combined with the rapid UV sintering process, the particle size, porosity, and roughness could be controlled to produce dense and homogeneous silver films. Finally, we successfully printed silver electrodes with a smooth and dense surface (R qs ∼ 21 nm in 0.8 × 0.8 mm 2 area and less than 1% porosity) under an optimized relative humidity (RH) of 50−60% at room temperature with the solvent composition of IPA (isopropanol)/2,3-BD (2,3-butanediol) = 8:2. In addition, we also demonstrated high-performance Pr−IZO (praseodymium-doped indium−zinc oxide) thin film transistors (TFTs) with a mobility (μ sat ) of 2.14 cm 2 /V/s and I on /I off ratio of over 10 7 using source−drain electrodes printed under optimized conditions.

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“…Based on recent developments in the calculation of interfacial tension and on the ability of the simulations to provide a thorough description of the interfacial region in terms of structures, specific arrangements and orientations, we propose here to investigate the adsorption of different molecules which present various polarities and are expected to provide different contact angles 51 on the graphene sheet. These molecules (ethylene glycol, ethanol and water) differ by the number and strength of the hydrogen bonds leading to variations of the liquidvapor surface tensions [52][53][54][55][56] from 22 to 72 mN m −1 . We aim at calculating the graphene-liquid interfacial tension of these molecules.…”

Section: Please Cite This Article As Doi:101063/50042438mentioning

confidence: 99%

Associated molecular liquids at the graphene monolayer interface

Goujon

Ghoufi

Malfreyt

2021

The Journal of Chemical Physics

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We report molecular simulations of the interaction between a graphene sheet and different liquids such as water, ethanol and ethylene glycol. We describe the structural arrangements at the graphene interface in terms of density profiles, number of hydrogen bonds (HBs) and local structuration in neighboring layers close to the surface. We establish the formation of a two-dimensional HB network in the layer closest to the graphene. We also calculate the interfacial tension of liquids with a graphene monolayer and its profile along the direction normal to the graphene to rationalize and quantify the strengthening of the intermolecular interactions in the liquid due to the presence of the surface.

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Surface tension and interfacial compositions of binary glycerol/alcohol mixtures

Cited by 22 publications

References 49 publications

The effect of solvent on convectively‑driven silica particle assembly: Decoupling surface tension, viscosity, and evaporation rate

The effect of solvent on convectively‑driven silica particle assembly: Decoupling surface tension, viscosity, and evaporation rate

Morphological Regulation of Printed Low-Temperature Conductive Ink

Associated molecular liquids at the graphene monolayer interface

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