The sorption of water by dry keratin fibers in atmospheres above 90% R.H. | Zendy

Feughelman M. | Zendy

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The sorption of water by dry keratin fibers in atmospheres above 90% R.H.

Author(s) -

Feughelman M.

Publication year - 1959

Publication title -

journal of applied polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.575

H-Index - 166

eISSN - 1097-4628

pISSN - 0021-8995

DOI - 10.1002/app.1959.070020510

Subject(s) - sorption , moisture , humidity , materials science , matrix (chemical analysis) , fiber , composite material , phase (matter) , water vapor , chemical engineering , thermodynamics , chemistry , adsorption , organic chemistry , physics , engineering

Use is made of the basic concepts of a two‐phase model structure for keratin fibers, consisting of a water impenetrable phase embedded in a water penetrable matrix phase. The mechanism of water sorption of a dry fiber in liquid water or in a high humidity atmosphere is discussed. It is assumed that during moisture uptake the matrix goes into a sol‐state. Once moisture uptake is complete the matrix goes through a sol‐gel transformation. Both the torsional rigidity and longitudinal stress at low strain vary during the sorption process, and subsequently, in a manner compatible with this model.

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