The components of surface tension of liquids and their usefulness in determinations of surface free energy of solids

Jańczuk, Bronisław; Białopiotrowicz, Tomasz; Wójcik, Wiesław

doi:10.1016/0021-9797(89)90007-6

Cited by 132 publications

(96 citation statements)

References 33 publications

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“…The difference between the values of g A C , g B C and g C C determined by Kitazaki and Hata [14,15] from contact angles measured by Zisman and co workers [2,10,11] for a given solid are equal even 11 mN/m. It means that g C value depends on the liquids used for its determination [16] and not in all cases, is even equal to a low energetic hydrophobic solid surface tension.…”

mentioning

confidence: 98%

“…Thus the main purpose of this study was to check whether for the systems including aqueous solutions of Triton X-100 and propanol mixtures and polymeric solids there are differences between the values of the critical surface tension of wetting and the surface tension of these solids, as well as to compare the obtained results with those from the literature [2][3][4][10][11][12][13][14][15][16][17][18] and to establish the correlation between adsorption at water-air and polymer-water interfaces with regard to the work of liquid adhesion to polymeric solids surface.…”

mentioning

confidence: 99%

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The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solutions of Triton X-100 and propanol mixtures

Zdziennicka

2009

Applied Surface Science

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confidence: 98%

mentioning

confidence: 99%

The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solutions of Triton X-100 and propanol mixtures

Zdziennicka

2009

Applied Surface Science

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“…From the measured OG and 0o values and the literature values for 3'D, "r~, and 3'B (Panzer, 1973;d n (Good andBia~opiotrowicz, 1989), and3'o, 3'o, and"to Elbing, 1970;Jaficzuk et al, 1989a) (Table 2), the dispersive and nondispersive components of the kaolin/ DDAC1 surface were calculated from Eqs. (3-5).…”

Section: Resultsmentioning

confidence: 99%

Influence of Dodecylamine Chloride on the Surface Free Energy of Kaolinite

Jańczuk

Chibowski

Białopiotrowicz

et al. 1990

Clays and clay miner.

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Abstract--Contact angles of glycerol and diiodomethane drops were measured on the surface of kaolin pellets covered with different amounts of dodecylamine chloride (DDAC1) to as much as one monolayer. For a glycerol drop, the contact angle changed from 25.7* (bare surface) to 45.4 ~ for the surface precoated with 0.125 monolayer of DDAC1, but remained nearly constant above this level up to one monolayer. For a diiodomethane drop, the contact angle changed from 28.6* (bare surface) to 58.1" for one DDAC1 monolayer precoating. Using these contact angles and a modified Young equation, the dispersive and nondispersive components of the surface free energy of DDACl-covered kaolin were calculated. These data showed that in the extreme case (one monolayer) the dispersive component was reduced by the DDACI from ~36 mJ/m 2 (bare surface) to 25.4 mJ/m 2, i.e., the value characteristic for paraffin (25.5 m J/mE); however, the nondispersive component was not reduced to zero. A minimum value (15.83 m J/ m 2) was determined for the sample covered with 0.125 DDAC1 monolayer (calculated), and a slight increase in the nondispersive component was observed for greater coverages. Such a change of the nondispersive component suggests that, at higher coverages, some adsorbed DDAC1 molecules were oriented with their polar ends off the surface. Based on the values of the .yaf and 3'~f, the work of water spreading was calculated. This work was positive for the bare surface (32.8 mJ/m 2) and methanoltreated (36.5 mJ/m 2) kaolin surface, but negative for 0.125 DDACI monolayer precoating (-31.1 mJ/ m2). It remained essentially unchanged for higher coverages. These data mean that bare and methanoltreated kaolinite surfaces were hydrophilic and that DDACl-treated surfaces were hydrophobic.

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“…The tests were performed for the liquids the surface tension of which was measured earlier. 43 The following liquids were used for measurements: distillated water, ethylene glycol and diiodomethane. The polar and dispersive components of polymer surface free energy were calculated from the measured contact angles using common method for the calculation of the surface free energy.…”

Section: Methodsmentioning

confidence: 99%

Effects of surface properties of bacterial poly(3-hydroxybutyrate-co-3-hydroxyvalerate) on adhesion and proliferation of mouse fibroblasts

et al. 2015

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Adhesion and proliferation of NIH/3Т3 mouse fibroblasts on the surfaces of bacterial copolymer poly(3-hydroxybutyrate-co-3-hydroxyvalerate) and its mixture with poly(ethylene glycol) with differing crystallinity, surface energy, and mean roughness was investigated. The surface mean roughness of all films on both sides, at the air interface and at the glass interface, measured by atomic force microscopy, was higher (from 17.0±1.4 nm to 290.8±7.0 nm) than that of the tissue culture polystyrene control (9.5±0.6 nm). The structure, surface energy, and chemical composition of bacterial films were studied by differential scanning calorimetry, contact angle measurements, and Fourier transform infrared (FTIR) spectroscopy. After 48 h, cell proliferation on all surfaces was significantly less than on the control substrate; however, after 72 and 96 h, cell proliferation was comparable with control on some surfaces with sufficient roughness. Addition of poly(ethylene glycol) resulted in an increase of adhesion and the metabolic activity of the cells, even for relatively smooth surfaces. The complex correlation of cell metabolic activity with surface energy and crystallinity for "rough" (mean roughness >100 nm) and "smooth" (mean roughness < 100 nm) surfaces is discussed.

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The components of surface tension of liquids and their usefulness in determinations of surface free energy of solids

Cited by 132 publications

References 33 publications

The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solutions of Triton X-100 and propanol mixtures

The wettability of polytetrafluoroethylene and polymethylmethacrylate by aqueous solutions of Triton X-100 and propanol mixtures

Influence of Dodecylamine Chloride on the Surface Free Energy of Kaolinite

Effects of surface properties of bacterial poly(3-hydroxybutyrate-co-3-hydroxyvalerate) on adhesion and proliferation of mouse fibroblasts

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