Thermoplastic polyurethane foams: From autoclave batch foaming to bead foam extrusion
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چکیده
منابع مشابه
Understanding foams & foaming
Most of the common foams are a two-phase medium of gas and liquid with a particular structure consisting of gas pockets trapped in a network of thin liquid lms and plateau borders. Some well known foams are bubble baths, dishwater detergents and the foam head on beers. Many oils foam when trapped gas is suddenly released under conditions of an abrupt drop in pressure. In some re ners in which t...
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Anisotropic polymer foams have been prepared, which exhibit a Poisson's ratio exceeding 1, and ratios of longitudinal to transverse stiffness exceeding 50. The foams are as much as 20 times stiffer in the longitudinal direction than the foams from which they were derived. The transformation process involved applying a uniaxial stress sufficient to produce 25% to 45% axial strain to open-cell po...
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ژورنال
عنوان ژورنال: Journal of Cellular Plastics
سال: 2020
ISSN: 0021-955X,1530-7999
DOI: 10.1177/0021955x20912201