A capillary rise method for studying the effective surface tension of monolayer nanoparticle-covered liquid marbles

Soft Matter ◽  
2018 ◽  
Vol 14 (48) ◽  
pp. 9877-9884 ◽  
Author(s):  
Xiaoguang Li ◽  
Renxian Wang ◽  
Shuai Huang ◽  
Yiqi Wang ◽  
Haixiao Shi
Keyword(s):  
Surface Tension ◽  
Capillary Rise ◽  
Effective Surface ◽  
Liquid Marbles ◽  
Capillary Rise Method

A capillary rise method was developed to study the effective surface tension of liquid marbles with invisible nanoparticle monolayers.

SURFACE TENSION OF He3

1955 ◽  
Vol 33 (2) ◽  
pp. 49-53 ◽  
Author(s):  
D. R. LoveJoy
Keyword(s):  
Surface Tension ◽  
Critical Temperature ◽  
Liquid Helium ◽  
Capillary Rise ◽  
Capillary Rise Method

The surface tension of He3 has been measured by a capillary rise method between 1.08° and 2.32°K. A decrease of more than 50% was observed in this range and this supports the ideas on which Atkins' theory of the surface tension of liquid helium is based. On the basis of this theory the surface tension has been extrapolated to 0°K., where it has the value 0.154 ± 0.005 erg cm.−2. Above 2.3°K. it was extrapolated linearly to zero at the critical temperature. The Eötvös constant was calculated to be about 0.8.

Measurement of Surface Tension of Homogenised Milks

2005 ◽  
Vol 1 (2) ◽  
Author(s):  
Niloshree Mukherjee ◽  
Bipan Bansal ◽  
Xiao Dong Chen
Keyword(s):  
Surface Tension ◽  
Capillary Rise ◽  
Milk Proteins ◽  
Active Components ◽  
Plate Method ◽  
Capillary Rise Method ◽  
Inverse Effect ◽  
Wilhelmy Plate ◽  
Surface Active ◽  
Wilhelmy Plate Method

Surface tension of different homogenized milk and cream, available in New Zealand, has been measured using the ‘Capillary Rise’ method as well as the automated ‘Wilhelmy Plate’ method. The measured values are slightly higher than the values reported in the literature. Increasing the fat content is found to have an inverse effect on the surface tension. This effect diminishes progressively for fat concentrations beyond 30%. Milk proteins, reported in the literature as surface-active components, are observed to have no effect on the surface tension.

THE SURFACE TENSION OF SLIGHTLY SOLUBLE FATTY ACIDS

1946 ◽  
Vol 24a (1) ◽  
pp. 8-14 ◽  
Author(s):  
D. G. Douglas ◽  
C. A. MacKay
Keyword(s):  
Fatty Acids ◽  
Surface Tension ◽  
Aqueous Solutions ◽  
Capillary Rise ◽  
Stable State ◽  
Melting Points ◽  
Considerable Time ◽  
Dilute Solutions ◽  
Chain Molecules ◽  
Capillary Rise Method

Surface tension measurements have been made on normal heptylic, pelargonic, capric, and lauric acids above their melting points and on aqueous solutions of heptylic, pelargonic, capric, and undecylic acids, at various concentrations. A modified capillary rise method was employed. The results indicate that the surface does not reach the stable state at once but requires considerable time, being slower for more dilute solutions and longer chain molecules. Evidence is given for the existence of a monolayer of closely packed molecules, with long axes perpendicular to the surface, each molecule occupying an area of approximately 25 Å for heptylic acid.

Surface tension of liquid 4He and 3He

1987 ◽  
Vol 65 (11) ◽  
pp. 1505-1509 ◽  
Author(s):  
Akira J. Ikushima ◽  
Masaaki Iino ◽  
Masaru Suzuki
Keyword(s):  
Surface Tension ◽  
Surface Wave ◽  
Temperature Dependence ◽  
Capillary Rise ◽  
Resonance Method ◽  
Einstein Condensate ◽  
Bose Einstein Condensate ◽  
Capillary Rise Method ◽  
Wave Resonance ◽  
Bose Einstein

Surface tensions of liquid 4He and 3He have been measured down to 0.3 K by using the surface-wave resonance method. Measurements with 3He have been made further, down to 20 mK, by the capillary-rise method. Liquid 4He shows a T7/3 temperature dependence up to approximately 1 K, indicating that the ripplon excitation is the predominant contributor in this temperature range. It is concluded with the superfluid 4He that the "surface energy" of the Bose–Einstein condensate (BEC) gives a major contribution to the surface tension, from which we have deduced n0, the fraction of BEC. Liquid 3He shows a T2 temperature dependence from 0.3 K to about 1 K. The result is attributed to both the effect of 3He quasi particles, which hit the surface, and the ripplon. The latter has never been seriously thought to exist on the 3He surface.An unexpected behavior of the 3He surface tension has been found below approximately 200 mK. The surface tension does not obey the T2 temperature dependence but deviates downward around 200 mK.Surface tensions of 4He and 3He have been measured also in the vicinities of liquid–vapor critical points.

Measuring the effective surface tension of a floating liquid marble using X-ray imaging

Soft Matter ◽  
2021 ◽  
Vol 17 (15) ◽  
pp. 4069-4076
Author(s):  
Chin Hong Ooi ◽  
Pradip Singha ◽  
Nhat-Khuong Nguyen ◽  
Hongjie An ◽  
Van Thuong Nguyen ◽  
...  
Keyword(s):  
Surface Tension ◽  
Curve Fitting ◽  
Effective Surface ◽  
X Ray ◽  
Liquid Marbles ◽  
Solid Interface ◽  
Fitting Procedure ◽  
X Ray Imaging ◽  
Liquid Marble

Liquid marbles are non-wetting droplets coated with microscopic powder. We measure the effective surface tension of a liquid marble using X-ray which reveals the hidden liquid–solid interface. A systematic curve fitting procedure is also provided.

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