1997
DOI: 10.1021/la9621224
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Determination of the Carbon Black Surface Free Energy Components from the Heat of Immersion Measurements

Abstract: A carbonaceous material (Black Pearls 2000) was used for measurements of heat of immersion in water, formamide, n-dodecane, benzene, bromoform, and diiodomethane. Using the values obtained and the adsorption data from the literature, the Lifshitz-van der Waals component and the electron-acceptor and electron-donor parameters of the acid-base component of the surface free energy of the carbon black have been determined. The surface free energy of carbon black was found to result mainly from Lifshitz-van der Wa… Show more

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Cited by 51 publications
(37 citation statements)
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“…Using the components of liquid surface tension Zao et al [33] proved that changes in wettability are caused by the increase of electron-acceptor parameter of apparent surface free energy with the increasing temperature. Taking into account the studies by Jańczuk et al [34] on carbon black and apparent surface free energy determination from heat of immersion, it should be remembered that value of dispersion parameter of apparent surface free energy γ s LW depends on the interpretation of contribution of film surrounding the droplet and change of contact angle value is affected by the electron-acceptor parameter of the apparent surface free energy and the existence of film adsorbed around the liquid droplet whose contact angles are measured.…”
Section: A) B)mentioning
confidence: 99%
“…Using the components of liquid surface tension Zao et al [33] proved that changes in wettability are caused by the increase of electron-acceptor parameter of apparent surface free energy with the increasing temperature. Taking into account the studies by Jańczuk et al [34] on carbon black and apparent surface free energy determination from heat of immersion, it should be remembered that value of dispersion parameter of apparent surface free energy γ s LW depends on the interpretation of contribution of film surrounding the droplet and change of contact angle value is affected by the electron-acceptor parameter of the apparent surface free energy and the existence of film adsorbed around the liquid droplet whose contact angles are measured.…”
Section: A) B)mentioning
confidence: 99%
“…From contact-angle measurements, the dispersive component of the surface free energy (c LW ) of carbon black was determined to be 36.8 mJ m -2 , and the total surface-free energy was 71.2 mJ m -2 . [42] Other contact-angle data showed the total sur- [ 44] For the purpose of this work, MCMB was assumed to be isotropic and net surface-energy components were obtained assuming a weighted average of those of carbon black and the graphite extraordinary plane (HOPG):…”
Section: Carbons (Mesocarbon Microbeads Highly Oriented Pyrolithic Gmentioning
confidence: 99%
“…Three probing liquids, Diiodomethane (apolar), Formamide (polar), and DI water (polar), with given surface energy, L LW , L þ and L À , shown in Table 1, 10,14) are used to measure the contact angle of the liquids by the sessile drop method. Substituting the measured contact angle and the given surface energy of the liquids into the eq.…”
Section: Surface Energy Estimationmentioning
confidence: 99%