Wettability of polytetrafluoroethylene by aqueous solutions of two anionic surfactant mixtures

Zdziennicka, Anna; Jańczuk, Bronisław; Wójcik, Wiesław

doi:10.1016/s0021-9797(03)00702-1

Cited by 72 publications

(81 citation statements)

References 33 publications

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“…In our earlier studies [5][6][7][8][9] it was found that even in the case of polytetrafluoroethylene (PTFE), which is a low energetic hydrophobic solid, the values of the critical surface tension of wetting determined according to the methods of Zisman [2] and Bargeman and van Voorst [3] for mixtures of surfactants or surfactants and additives are about 3-4 mN/m higher than those obtained from contact angles of aqueous solutions of some surfactants and from those determined from contact angles for nonpolar liquids [2,3,[10][11][12][13].…”

mentioning

confidence: 91%

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: 91%

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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“…The contact angle formed by a liquid drop on a solid is dependent on the properties of the uppermost molecular layers of the solid, consequently the presence of any coverage or adsorbed layer on the solid affects the shape of the settled drops on the solid. For this reason, measurements of contact angles of probe liquids on solids are successfully used to characterize surface treatments or adsorbed films on solids [1][2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Experimental approach towards the water contact angle value on the biomaterial alloy Ti6Al4V

Hierro-Oliva

Gallardo-Moreno

Rodríguez-Cano

et al. 2015

Annales UMCS, Chemia

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In the biomedical field, water contact angle is a useful gauge to follow how a biomaterial surface would interact with the surrounding water-like physiological environment. Ti6Al4V alloy is widely used in orthopedic applications. Nevertheless, the values of its water contact angle reported in the literature show a large dispersion, from 40° up 80°. However, in addition to the expected dependence of the surface wettability on preliminary treatments, the values of the water contact angle on the pristine Ti6Al4V alloy suffers from an important variability and lack of reproducibility. The present research pays attention to this difficulty and proposes a simple experimental procedure to ensure adequate contact angle reproducibility. Controlled passivation growth in mild underwater conditions of freshly polished disks, followed by ultrasonic washing, avoiding the rubbing of the surface, gives average water contact angles of 80° with very low standard deviations also among samples from the same batch.

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“…Because of the fact, the contact angle changes are sometimes difficult to predict. The influence of surfactants on the contact angle in solid-waterair systems was studied by many investigators [2][3][4][5][6] and in different systems, also those including natural surfaces [3,[7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Wetting properties of the sodium bis(2-ethylhexyl) sulfosuccinate (AOT) and polyoxyethylene (23) lauryl ether (Brij 35) binary mixtures in the poly(tetrafluoroethylene)-solution-air system

Krawczyk

2015

Annales UMCS, Chemia

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Wettability of poly(tetrafluoroethylene) (PTFE) by aqueous solutions of binary mixtures composed of sodium bis(2-ethylhexyl) sulfosuccinate (AOT) with polyoxyethylene (23) lauryl ether (Brij 35) was considered on the basis of the measured values of contact angle and surface tension. It was shown that the value of the critical surface tension of PTFE surface wetting at the studied system (23.5 mN/m), does not depend on the concentration and composition of the binary mixtures of studied surfactants in water, and it was higer than the surface tension of PTFE (20.2 mN/m). The best wettability of polytetrafluoroethylene (PTFE) by studied aqueous solutions of binary surfactants mixtures occurs at the mixtures concentration corresponding to the critical micelle concentration of their solutions.

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Wettability of polytetrafluoroethylene by aqueous solutions of two anionic surfactant mixtures

Cited by 72 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

Experimental approach towards the water contact angle value on the biomaterial alloy Ti6Al4V

Wetting properties of the sodium bis(2-ethylhexyl) sulfosuccinate (AOT) and polyoxyethylene (23) lauryl ether (Brij 35) binary mixtures in the poly(tetrafluoroethylene)-solution-air system

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