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http://dx.doi.org/10.3795/KSME-B.2004.28.6.726

Generation of Microcellular Foams in Viscoelastic Polymer Solutions  

Kang, Sung- Lin (중앙대학교 대학원 기계공학부)
Kim, Ki-Young (중앙대학교 대학원 기계공학)
Kwak, Ho-Young (중앙대학교 기계공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.28, no.6, 2004 , pp. 726-733 More about this Journal
Abstract
The growth of the critical size bubble by diffusion process in viscoelastic medium was treated by an integral method for the concentration boundary layer adjacent to the bubble wall. In this study, we obtained a set of the first order time dependent equations to obtain bubble radius and gas pressure inside the bubble simultaneously. The calculated final cell sizes depending on the initial saturation pressure are in close agreement with the observed ones. The governing equations developed in this study may be used in polymer processing of microcellular foams.
Keywords
Cell Size; Concentration Boundary Layer; Critical Bubble; Diffusion; Microcellular Foam; Viscoelastic Medium;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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