Evaluate the Simple Surface Energy of Aggregates Using the Capillary Rise Method

2007 ◽  
Vol 35 (6) ◽  
pp. 100973
Author(s):  
M. R. Mitchell ◽  
R. E. Link ◽  
Dennis Sinkonde ◽  
Hao Pei Wen ◽  
Xiao Qing Yi
Keyword(s):  
Surface Energy ◽  
Capillary Rise ◽  
Capillary Rise Method ◽  
Simple Surface

Influence of Layer Charge and Modifier on Wettability of Organo-Montmorillonite

2014 ◽  
Vol 1030-1032 ◽  
pp. 90-94
Author(s):  
Zhong Xin Luo ◽  
Mang Lai Gao ◽  
Ya Ge Ye
Keyword(s):  
Synergistic Effect ◽  
Chain Length ◽  
Quaternary Ammonium ◽  
Capillary Rise ◽  
Quaternary Ammonium Salts ◽  
Deionized Water ◽  
Ammonium Salts ◽  
Layer Charge ◽  
Oil Reservoir ◽  
Capillary Rise Method

To study the influence of layer charge and modifier on wettability plays an important role on the diagnosis of oil reservoir. In this paper, two quaternary ammonium salts (QASs) with different chain-length were used singularly or in compound form to modify the reduced-charge montmorillonites (RCMs). The wettability alterations of the organo-RCMs for deionized water and cyclohexane were studied based on capillary rise method. The results showed that RCMs singularly modified by QASs show different wettability characteristics. Moreover, there is a synergistic effect on the wettability when the RCMs are compound modified by two QASs and the organo-RCMs turn to more hydrophilic. The results of this work also indicated that it is possible to regulate the wettability of the RCMs by choosing different recipe of QASs, which is helpful to provide theoretical guidance for the oil production.

scholarly journals Wicking Behaviors of Ring and Compact-Siro Ring Spun Yarns with Different Twists

2019 ◽  
Vol 19 (1) ◽  
pp. 68-73 ◽  
Author(s):  
Yuzheng Lu ◽  
Yang Wang ◽  
Weidong Gao
Keyword(s):  
Efficient Method ◽  
Capillary Rise ◽  
Fiber Material ◽  
Staple Fiber ◽  
Yarn Strength ◽  
Capillary Rise Method ◽  
Spun Yarn ◽  
Spun Yarns ◽  
Twist Level ◽  
Yarn Structure

Abstract In this study, the wicking properties of ring and compact-siro ring spun staple yarns were compared. The twist level, which is related to the structure of the staple yarns, was found to significantly influence the wicking property of the two kinds of yarn. Polyester staple fibers with 1.33 dtex × 38 mm were selected as the staple fiber material, and the effect of the twist level on the wicking property was investigated using the capillary rise method. The results show that with a decreasing twist coefficient, the wicking height increases with a decrease in yarn compactness. The compact-siro spun yarn showed better wicking properties owing to it special ply yarn structure. Furthermore, the tension property of the yarns decreased significantly with a decrease in the twist coefficient. Compact-siro spinning was carried out to obtain staple yarns with lower twist coefficients, and the yarns showed great improvement in terms of yarn strength, fiber straightness, and wicking properties. Thus, compact-siro spinning is an efficient method to improve the wicking properties of staple yarns.

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.

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