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A comparative study of the frictional properties of emollient bath additives using porcine skin
Author(s) -
HILLS R.J.,
UNSWORTH A.,
IVE F.A.
Publication year - 1994
Publication title -
british journal of dermatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.304
H-Index - 179
eISSN - 1365-2133
pISSN - 0007-0963
DOI - 10.1111/j.1365-2133.1994.tb06879.x
Subject(s) - materials science , friction coefficient , coefficient of friction , reciprocating motion , composite material , plunger , bearing (navigation) , physics , astronomy
Summary The coefficient of friction of 14 prescribable bath emollients was determined using porcine skin attached to a loaded plunger placed through a bearing in a friction‐measuring carriage, held above a reciprocating table powered by a DC motor. The carriage was mounted in low‐friction rollers, and restrained by a piezo‐electric force transducer connected to an amplifier and recorder. Friction was measured at room temperature, and at 45°C. Emulsifying ointment and Bath E45® had the highest coefficients of friction, at room temperature and 45°C, respectively, and Emmolate® and Hydromol® had the lowest. Nine of the 14 emollients had a lower coefficient of friction at 45°C, one had a coefficient of friction which was the same at both temperatures, and four had a coefficient of friction which was higher at 45°C.