Determination of the Surface Isoelectric Point of Oxide Films on Metals by Contact Angle Titration

McCafferty, E.; Wightman, J. P.

doi:10.1006/jcis.1997.5138

Cited by 110 publications

(85 citation statements)

References 36 publications

(24 reference statements)

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“…5. At the isoelectric point the contact angle shows a maximum which is qualitatively in line with observations made in the literature [1,2,4,3,28,5,6]. The contact angle at the isoelectric point is h i.e.p.…”

Section: Resultssupporting

confidence: 91%

Development of diffuse double layers in column-wicking experiments: Implications for pH-dependent contact angles on quartz

Weber

Stanjek

2012

Journal of Colloid and Interface Science

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Section: Resultssupporting

confidence: 91%

Development of diffuse double layers in column-wicking experiments: Implications for pH-dependent contact angles on quartz

Weber

Stanjek

2012

Journal of Colloid and Interface Science

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“…The PETG coating was assumed to be a Lewis base, determined by inverse gas chromatographyInverse Gas Chromatography (IGC). [30] Since clearly there is adhesion possible with the smooth surface of pure aluminium at the isoelectric point (IEP at pH = 9.5), [31] it is tentatively assumed that the polymer is indeed a weak base.…”

Section: Adcbmentioning

confidence: 99%

The influence of pre‐treatments of aluminium alloys on bonding of PET coatings

Wit¹,

Özkanat²,

Mol³

et al. 2010

Surface & Interface Analysis

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Application of organic coatings on aluminium alloys is commonplace for corrosion protection. The adhesion of coatings is of great importance to the final protection properties. It is therefore necessary to understand on a molecular level the mechanisms with which a coating is able to bond. In this paper, we explore the possibilities of combining model molecules for a poly(ethylene terephthalate) (PET) type coating, di-methyl terephthalate (DMT), with differently pre-treated samples of AA1050 and AA5182 alloys. Bonding is studied by means of Fourier-transform infrared (FTIR) spectroscopy. Because the type of bonding gives a direction for adhesion of a coated system, we also test (macroscopically) the adhesion of PET coatings with a novel technique: asymmetrical double cantilever beam (ADCB). In this method, a thin knife is used as a wedge on the interface of the alloy and the polymer. The displacement of the crack front as measured from the knife's contact point with the coating is used as an input parameter to obtain the adhesion energy for various systems. We show that there is a relationship between the character of bonding of DMT molecules and adhesion energies of PET on both alloys after pre-treatments in alkali and acid and boiling in water.

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“…It has been reported that IEP of Al 2 O 3 particles was in the range of 6.9-10.5, whereas IEPs of SiO 2 and TiO 2 particles were in the range of 1.9-4.5 and 3.8-7.2, respectively [31,32]. Surface charges of Al 2 O 3 , SiO 2 and TiO 2 suspensions are pH dependent [33,34] and rely on the reactivity of hydroxyl surface groups with potential-determining ions in the solution [35]. Hydroxyl groups can become hydrated or hydroxylated in the solution through acquiring hydrogen or hydroxide ions from aqueous solutions.…”

Section: Mf Of Ospw With Sio 2 -And Tio 2 -Modified Membranesmentioning

confidence: 99%

Treatment of oil sands process-affected water by submerged ceramic membrane microfiltration system

Dong

Kim

Alpatová

et al. 2014

Separation and Purification Technology

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Determination of the Surface Isoelectric Point of Oxide Films on Metals by Contact Angle Titration

Cited by 110 publications

References 36 publications

Development of diffuse double layers in column-wicking experiments: Implications for pH-dependent contact angles on quartz

Development of diffuse double layers in column-wicking experiments: Implications for pH-dependent contact angles on quartz

The influence of pre‐treatments of aluminium alloys on bonding of PET coatings

Treatment of oil sands process-affected water by submerged ceramic membrane microfiltration system

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