Effect of Environmental Humidity on Static Foam Stability

Li, Xueliang; Karakashev, Stoyan I.; Evans, Geoffrey M.; Stevenson, Paul

doi:10.1021/la205101d

Cited by 64 publications

(34 citation statements)

References 29 publications

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“…The similar trend of the film thinning for different humidities suggests that the liquid drainage is decoupled from the evaporation, such that the term j d (z, t) is rendered by the measurements at R H = 100 %, where the evaporative flux is zero. If some Marangoni gradients were generated by temperature or surfactant concentration gradients as proposed earlier [5,19], they would modify the boundary condition at the interfaces of the film and therefore affect the drainage differently depending on R H . This effect thus appears to be negligible in our experiment.…”

Section: Criterion For Film Burstingmentioning

confidence: 90%

Influence of Evaporation on Soap Film Rupture

et al. 2018

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Although soap films are prone to evaporate due to their large surface to volume ratio, the effect of evaporation on macroscopic film features has often been disregarded in the literature. In this work, we experimentally investigate the influence of environmental humidity on soap film stability. An original experiment allows to measure both the maximum length of a film pulled at constant velocity and its thinning dynamics in a controlled atmosphere for various values of the relative humidity [Formula: see text]. At first order, the environmental humidity seems to have almost no impact on most of the film thinning dynamics. However, we find that the film length at rupture increases continuously with [Formula: see text]. To rationalize our observations, we propose that film bursting occurs when the thinning due to evaporation becomes comparable to the thinning due to liquid drainage. This rupture criterion turns out to be in reasonable agreement with an estimation of the evaporation rate in our experiment.

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Section: Criterion For Film Burstingmentioning

confidence: 90%

Influence of Evaporation on Soap Film Rupture

et al. 2018

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“…The volume change over time was also recorded. Since foam stability was affected crucially by environmental humidity [25], the cylinder was sealed with parafilm. The morphology of the bubbles was observed with an optical microscope (BXM-99, China).…”

Section: Foam Generated From Sio 2 /Sds Dispersionmentioning

confidence: 99%

Aqueous foam stabilized by partially hydrophobic nanoparticles in the presence of surfactant

Sun

Wang

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

181

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“…For the visualization of the images obtained by the ScopePhoto™ software (version 3.0.12.498), it allowed measuring linear dimensions in real time and static image 15,16,17 .…”

Section: Methodsmentioning

confidence: 99%

The Study of Physicochemical Parameters of Some Detergents With the Anionic Nature

Ludmila¹,

Inna²,

Yulia³

et al. 2017

Int. Res. J. Pharm.

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The physico-chemical parameters of detergents with the anionic nature, namely sodium myreth sulfate and sodium lauryl sarcosinate used most often when developing domestic foaming products for personal hygiene, at the cosmetic enterprises of Ukraine have been studied and analyzed. The indicators of the foaming ability (foam number, foam stability) of the test samples at different pH values, namely at the neutral pH (5.5-6.0) and at the acid рН (3.5-4.0), have been determined and studied. The study of the foam structure at the pH intervals under research has been also conducted using the method of microphotography. According to the results of the study, the conclusion has been made that different pH values do not affect the foaming ability; however, they affect the foam structure.

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Effect of Environmental Humidity on Static Foam Stability

Cited by 64 publications

References 29 publications

Influence of Evaporation on Soap Film Rupture

Influence of Evaporation on Soap Film Rupture

Aqueous foam stabilized by partially hydrophobic nanoparticles in the presence of surfactant

The Study of Physicochemical Parameters of Some Detergents With the Anionic Nature

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