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Mold release agents. I. Fatty acids and selected fluorinated compounds as releasants for polyurethane from cold rolled steel
Author(s) -
Schneberger Gerald L.,
Nakanishi Todd
Publication year - 1981
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760210703
Subject(s) - polyurethane , stearic acid , materials science , fatty acid , mold , organic chemistry , chemistry , composite material
The effect of saturated aliphatic fatty acids and a number of fluorinated polar organic compounds on the release of polyurethane foam from cold rolled steel has been investigated. Little release was observed with aliphatic acids of less than 10 carbons or with the organic compounds. Release behavior increased with aliphatic chain length from C12 to C18. Stearic acid release increased only marginally above 0.034 μ g/cm 2 . Infrared studies of demolded eluted surfaces indicated that stcaric acid at levels of up to 178 μ g/cm 2 was apparently removed from the surface by foam.