Adsorption and the wettability of solid surfaces

Bangham, D. H.; Razouk, R. I.

doi:10.1039/tf9373301459

Cited by 211 publications

(87 citation statements)

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“…The specific work of adhesion W-IIe in the air can be represented by the correct form of the Young-Dupre relation (Dupre 1869;Fox and Zisman 1950) modified by Bangham and Razouk (1937). (I) where Yi is surface free energy of ice, e is the contact angle of ice/ substrate and lie is the reduction in surface energy of the solid resulting from adsorption of vapor from liquid being measured.…”

Section: Thermodynamic Consideration Of Ice Adhesionmentioning

confidence: 99%

On the Relationship of Thermodynamic and Physical Properties of Polymers With Ice Adhesion

Murase

Nanishi

1985

A. Glaciology.

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The purpose of this work is to study the relationship of energetic and physical properties of polymetric materials with ice adhesion, and to develop the material to prevent ice adhesion. From various parameters of water and ice, dispersion and hydrogen bond contribution of surface free energy of ice were calculated. Using these values and that of contact angle formed between ice and polymer in the air and also in paraffin, work of adhesion W-" and W were determined respectively. The difference W-(W"-" ) has made it possible to evaluate the effect of surface pr;ssure" on ice adhesion. On the other hand, actual adhesive strength of ice was measured. Some correlations between theoretical and observed values were found. Further, visco-elastic properties of polymers below icing temperature and temperature dependence of strain in the ice/ polymer system were investigated. The results showed some characteristics of polymers which are related to molecular mobility at lower temperature, are effective in reducing the adhesive strength to ice.Numerous attempts were made to develop coating materials to prevent ice adhesion. A composite polymer composition, which has peculiar ingredients and structure, was proposed and found to provide the ability for the lowest ice adhesion. Ice preventive mechanism of the film was discussed.

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Section: Thermodynamic Consideration Of Ice Adhesionmentioning

confidence: 99%

On the Relationship of Thermodynamic and Physical Properties of Polymers With Ice Adhesion

Murase

Nanishi

1985

A. Glaciology.

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“…Approximately 200 years ago, Thomas Young suggested a relationship for the contact angle of the liquid [4]. In 1937, Bangham, D. H., Razouk, R.I. pointed out the importance of negligence gas adsorption on the surface of the solid phase during the derivation of Young's equation [5].In the following years have been done a lot of research on the measurement of fluid slip; both from the theoretical, and experimental point of view. However, the results were not very successful because there were not known the surfaces with sufficient degree of hydrophobic [6].…”

Section: Introductionmentioning

confidence: 99%

The estimation of dynamic contact angle of ultra-hydrophobic surfaces using inclined surface and impinging droplet methods

Jašíková

Kotek

2014

EPJ Web of Conferences

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Abstract. The development of industrial technology also brings with optimized surface quality, particularly where there is contact with food. Application ultra-hydrophobic surface significantly reduces the growth of bacteria and facilitates cleaning processes. Testing and evaluation of surface quality are used two methods: impinging droplet and inclined surface method optimized with high speed shadowgraphy, which give information about dynamic contact angle. This article presents the results of research into new methods of measuring ultra-hydrophobic patented technology.

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“…The specific surface of the solid covered with a monomolecuiar layer of the vapor then may be calculated by a formula as, and those for ammonia and water vapor are attributed to the ability of the latter to penetrate between montmorlllonite layers while nitrogen covers only the external surfaces (7,79 The transfer Involves the compression of the vapor, and the expansion of the adsorbed layer. He further pointed out that by substituting p^d(p/p^) for dp, the expression may be changed to the following: Therefore, with clay minerals the free energy change given by Equation (4) Is equivalent to that expressed by Equation (6). The term (y^^ -will be called the free energy of immersion of the solid in the liquid and AF the free energy of wetting of the solid by the liquid.…”

Section: Adsorption Methods To Determine the Surface Area Of Sodium Momentioning

confidence: 99%

Swelling pressure of sodium montmorillonite in relation to interlayer spacing

Ruenkrairergsa

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Adsorption and the wettability of solid surfaces

Cited by 211 publications

References 0 publications

On the Relationship of Thermodynamic and Physical Properties of Polymers With Ice Adhesion

On the Relationship of Thermodynamic and Physical Properties of Polymers With Ice Adhesion

The estimation of dynamic contact angle of ultra-hydrophobic surfaces using inclined surface and impinging droplet methods

Swelling pressure of sodium montmorillonite in relation to interlayer spacing

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