期刊
ULTRAMICROSCOPY
卷 105, 期 1-4, 页码 155-175出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ultramic.2005.06.032
关键词
AFM; hair; beauty care; friction; adhesion; roughness; conditioner
类别
Healthy hair and skin is highly desired. Characterization of their morphological, frictional, and adhesive properties (tribological properties) is essential to enhance understanding of hair and skin and to advance the science. Literature on the tribological characterization of hair and skin is scarce to date. The paper presents nanotribological data and analysis on hair (Caucasian, Asian, and African hair at virgin, chemo-mechanically damaged, and treated conditions) and synthetic hair and skin, as well as roughness data of human skin replica. Roughness statistics are presented to characterize the vertical and spatial surface parameters. Average coefficient of friction values were determined for each ethnicity and hair type, and are discussed. The directionality dependence of friction is also discussed. Magnitude and spatial distribution of adhesive force are used to estimate thickness and distribution of the conditioner film. (c) 2005 Elsevier B.V. All rights reserved.
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