A method for measuring contact angles on fibers

Jones, Wayne C.; Porter, Melissia

doi:10.1016/0021-9797(67)90269-x

Cited by 22 publications

(6 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is not possible to draw a tangent to the meniscus at the three-phase contact line with much confidence. A more viable method, based on the reflection of a point light-source by the meniscus, has been described [54], but this again suffers in reliability when the fiber size becomes so low (100 µm or less) as to make the meniscus very highly curved.…”

Section: Methods Based On Goniometrymentioning

confidence: 99%

Wetting and Wicking in Fibrous Materials

Patnaik¹,

Rengasamy²,

Kothari³

et al. 2006

Textile Progress

195

143

View full text Add to dashboard Cite

Section: Methods Based On Goniometrymentioning

confidence: 99%

Wetting and Wicking in Fibrous Materials

Patnaik¹,

Rengasamy²,

Kothari³

et al. 2006

Textile Progress

195

143

View full text Add to dashboard Cite

“…Therefore, in the drop-fibre contact point, a value of the contact angle could be measured. A description of the method performed in this work for determining contact angles on fibres was found in literature [25] and it was also used in a previous research [26].…”

Section: Methodsmentioning

confidence: 99%

Effects of Gamma Irradiation on the Kinetics of the Adsorption and Desorption of Hydrogen in Carbon Microfibres

Mota¹,

Culebras²,

Cantarero³

et al. 2013

AMPC

View full text Add to dashboard Cite

In this study, three types of carbon fibres were used, they were ex-polyacrylonitrile carbon fibres with high bulk modulus, ex-polyacrylonitrile fibres with high strength, and vapour grown carbon fibres. All the samples were subjected to a hydrogen adsorption process at room temperature in an over-pressured atmosphere of 25 bars. The adsorption process was monitored through electrical resistivity measurements. As conditioning of the fibres, a chemical activation by acid etching followed by γ-ray irradiation with 60 Co radioisotopes was performed. The surface energy was determined by means of the sessile drop test. Both conditioning treatments are supplementary; the chemical activation works on the outer surface and the γ-irradiation works in the bulk material as well. Apparently, the most significant parameter for hydrogen storage is the crystallite size. From this point of view, the most convenient materials are those with small grain size because hydrogen is accumulated mainly in the grain boundaries.

show abstract

“…Advancing and receding conditions are established with the aid of the sliding motion of the filament holder. The apparatus described by Jones and Porter (66) can be used to measure contact angles up to approximately 75°. Measurements have been made on fibers as thin as 2.5 ILm diameter.…”

Section: Wilhelmy Method Thementioning

confidence: 99%