Determination of porous glass surface free energy components from contact angles

Jańczuk, Bronisław; Białopiotrowicz, Tomasz; Chibowski, Emil; Dawidowicz, Andrzej L.; Kliszcz, A.

doi:10.1007/bf01045370

Cited by 9 publications

(3 citation statements)

References 21 publications

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“…The free energies of surfaces modified with the coupling agents were also estimated using six liquids with different surface tensions. The surface free energies for the glasses modified with the silane coupling agents shown in Figure were in a range of 20.6–39.1 mJ/m 2 (see Table S4), being similar to or somewhat larger than the values reported for hydrophobic surfaces surrounded with closely packed octadecyl groups in literature (22.7–24.4 mJ/m 2 ). , These free energy values for the modified glass surfaces were much smaller than those for untreated glass surface reported in literature. − No significant difference in the glass surface property was observed among the silane coupling agents.…”

Section: Results and Discussionsupporting

confidence: 71%

Interfacial Structure Control and Three-Dimensional X-ray Imaging of an Epoxy Monolith Bonding System with Surface Modification

Sakata

Takeda

Kotera³

et al. 2020

Langmuir

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A monolith bonding system has a high reliability for dissimilar material bonding. The epoxy monolith layer fabricated on a substrate guarantees bond strength by the anchor effect, regardless of the compatibility of the used materials. Designing a high-performance monolith bonding system requires the suppression of an interfacial failure between the monolith and the substrate. In this study, silane and phosphine coupling agents containing amino and epoxy groups were used to construct a robust interfacial structure between the monolith and the substrates such as glass and metals. The internal and interfacial monolith structures were characterized by three-dimensional X-ray imaging as a nondestructive observation method in addition to the scanning electron microscopy of the sample cross sections. The modification of the substrate−monolith interface using the coupling agents improved the strength of dissimilar material bonding of the glass and metal substrates in combination with thermoplastic resins such as poly(ethylene terephthalate) and polycarbonate bisphenol-A.

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Section: Results and Discussionsupporting

confidence: 71%

Interfacial Structure Control and Three-Dimensional X-ray Imaging of an Epoxy Monolith Bonding System with Surface Modification

Sakata

Takeda

Kotera³

et al. 2020

Langmuir

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“…To determine the thermodynamic properties of the L. monocytogenes surfaces, diiodomethane and water were chosen as the apolar and polar liquids, respectively (Table 1) 60 . The average contact angle values on L. monocytogenes tested ranged from 34.4° to 43.2° for water and from 63.2° to 66.5° for diiodomethane.…”

Section: Resultsmentioning

confidence: 99%

The role of the pH conditions of growth on the bioadhesion of individual and lawns of pathogenic Listeria monocytogenes cells

Park

Abu-Lail

2011

Journal of Colloid and Interface Science

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The work of adhesion that governs the interactions between pathogenic Listeria monocytogenes and silicon nitride in water was probed for individual cells using atomic force microscopy and for lawns of cells using contact angle measurements combined with a thermodynamic-based harmonic mean model. The work of adhesion was probed for cells cultured under variable pH conditions of growth that ranged from pH 5 to pH 9. Our results indicated that L. monocytogenes cells survived and adapted well to the chemical stresses applied. For all pH conditions investigated, a transition was observed in the generation time, physiochemical properties, biopolymer grafting density and bioadhesion for cells cultured in media adjusted to pH 7 of growth. In media with pH 7, the generation time for the bacterial cells was lowest, the specific growth rate constant was highest, the cells were the most polar, cells displayed the highest grafting density of surface biopolymers and the highest bioadhesion to silicon nitride in water represented in terms of the work of adhesion. When compared, the work of adhesion values quantified between silicon nitride and lawns of L. monocytogenes cells were linearly correlated with the work of adhesion values quantified between silicon nitride and individual L. monocytogenes cells.

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“…This technique used for mica (45,46) This method of determination of surface characteristics has been applied to other solids such as metals, aluminum in particular (491, carbon (50). and glass (51). Results show that the structure and surface composition can alter the surface properties, depending on the chemical or thermal treatments of the solids.…”

Section: Surface Characteristics Of High Energy Solids (Two-liquid Mementioning

confidence: 99%

An overview of the basic aspects of polymer adhesion. Part I: Fundamentals

Fourche

1995

Polymer Engineering & Sci

181

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Adhesion between two substrates is a complex phenomenon which at present is still not well understood. The important existing adhesion models (electrical, diffusion, thermodynamic adsorption, chemical, etc.) are reviewed in order to try to explain their mechanisms. Thermodynamic adsorption is now believed to be one of the most importnat mechanisms by which adhesion is achieved. Difusion and wetting are kinetic means in attaining good adsorption of a polymer at the interface. In the case of this model (thermodynamic adsorption), the notion of surface energy is developed and the importance of this property in the understanding of adhesion phenomena is emphasized. The methods of determining the surface characteristics of low and high energy solids are presented. The role played by acid‐base interactions in adhesion is also mentioned.

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Determination of porous glass surface free energy components from contact angles

Cited by 9 publications

References 21 publications

Interfacial Structure Control and Three-Dimensional X-ray Imaging of an Epoxy Monolith Bonding System with Surface Modification

Interfacial Structure Control and Three-Dimensional X-ray Imaging of an Epoxy Monolith Bonding System with Surface Modification

The role of the pH conditions of growth on the bioadhesion of individual and lawns of pathogenic Listeria monocytogenes cells

An overview of the basic aspects of polymer adhesion. Part I: Fundamentals

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