A simple method for measuring solid-liquid contact angles

Fort, Tomlinson; Patterson, H.T.

doi:10.1016/0095-8522(63)90013-8

Cited by 69 publications

(15 citation statements)

References 5 publications

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“…A modified procedure for measuring the contact angle of a liquid drop on a solid has been described [57]. The method is based on the observation of the angle at which light from a point source is reflected from a liquid drop surface at its contact point with a solid.…”

Section: Contact Angle Measurement By a Reflected Light Beammentioning

confidence: 99%

Wetting and Wicking in Fibrous Materials

Patnaik¹,

Rengasamy²,

Kothari³

et al. 2006

Textile Progress

196

143

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Section: Contact Angle Measurement By a Reflected Light Beammentioning

confidence: 99%

Wetting and Wicking in Fibrous Materials

Patnaik¹,

Rengasamy²,

Kothari³

et al. 2006

Textile Progress

196

143

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“…This method was refined by Fort and Patterson, (49) and combined with the tilting plate method by The method employs a light source mounted on a beam, which is pivoted on an axis containing the three-phase line at which the contact angle is to be measured (see Figure 13). This may be at the edge of a drop, or a meniscus at a flat plate or rod, or on the inside of a tube.…”

Section: Reflection Methodsmentioning

confidence: 99%

Techniques of Measuring Contact Angles

Neumann

Good

1979

Surface and Colloid Science

276

164

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“…The contact angle might be measured from photographs of the bubble profile, or directly, by means of a goniometer telemicroscope [23]. A reflected light method [24] was engaged in measuring the contact angle. The above-mentioned methods are inaccurate and irreproducible because a testing drop for contact angle measurement can be easily evaporated due to its tiny size and volatility.…”

Section: Introductionmentioning

confidence: 99%

The Improvement of Surface Energy of BPDA-EDA Polyimide by Controlling Molecular-Level Structure

Kim

Kwon

2009

Molecular Crystals and Liquid Crystals

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The surface properties (water sorption and repellency, adhesion) are closely related to the surface tension of polymer solid. Critical surface tension c C and surface tension c S of a polymer solid have been estimated by the contact angle method by our quantitative imaging system. BPDA (3,3 0 ,4,4 0 -biphenyl tetracarboxylic dianhydride) -EDA (4,4 0 -ethylenedianiline) polyimide was successfully synthesized. The critical surface tensions c C were analyzed by a Zisman plot, a Young-Dupre´-Good-Girifalco plot, and a log (1 þ cos h) vs log c L plot. The surface tension c S of BPDA-EDA polyimide was evaluated using the geometric mean equation and our multiple regression analysis. The calculated values of c d S (a dispersion component), c p S (a polar component), c h S (a hydrogen bonding component), and c S are 30.49, 4.52, 0.08, and 35.09 mN Á m À1 , respectively. The c S of BPDA-EDA polyimide containing two methylene groups is smaller than those of the polyimides containing both methylene group and ether group.

show abstract

A simple method for measuring solid-liquid contact angles

Cited by 69 publications

References 5 publications

Wetting and Wicking in Fibrous Materials

Wetting and Wicking in Fibrous Materials

Techniques of Measuring Contact Angles

The Improvement of Surface Energy of BPDA-EDA Polyimide by Controlling Molecular-Level Structure

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