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Capillary Kinetics of Thin Polymer Films in Permeable Microcavities

Published online by Cambridge University Press:  01 February 2011

Kahp-Yang Suh
Kahp-Yang Suh*
Affiliation:
sky4u@snu.ac.kr, seoul national university, School of Mechanical and Aerospace Engineering, San 56-1, Sillim-Dong, Kwanak-Gu, seoul, 151-742, Korea, Republic of, +82-2-880-9103
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Abstract

We present a Poiseuille model that can explain the rate of capillary rise of thin polymer films in permeable microcavities. In comparison to the traditional Poiseuille formulation, two unique features of the system were considered: the permeable nature of the enclosure and the effect of thin polymer films that are confined to the substrate. The model predicts that the rate is inversely proportional to the channel width, contrary to what the original Poiseuille model predicts, and it is proportional to the initial film thickness, which the original model cannot account for. The modified model is in satisfactory agreement with experimental data.

Keywords

microstructureviscoelasticitythin film
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1022: Symposium II – Nanoscale Heat Transport–From Fundamentals to Devices , 2007 , 1022-II01-02
Copyright
Copyright © Materials Research Society 2007

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