대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2004년도 춘계학술대회
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- Pages.174-179
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- 2004
점탄성 폴리머 용액에서의 초미세 폼의 생성
Generation of Microcellular Foams in Viscoelastic Polymer Solutions
- 발행 : 2004.04.28
초록
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.
키워드