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Analysis of nanogranule dispersion using the ISBS method

Published online by Cambridge University Press:  13 June 2007

Q.-Y. Meng ,
X. Zheng  and
D.-M. WU
Q.-Y. Meng
Affiliation:
Beijing University of Chemical Technology, Beijing 100029, P.R. China
X. Zheng
Affiliation:
Beijing University of Chemical Technology, Beijing 100029, P.R. China
D.-M. WU*
Affiliation:
Beijing University of Chemical Technology, Beijing 100029, P.R. China
*
[email protected]
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Abstract

A method of dispersing nanogranules in a polymer by utilizing the stretching, compression, and shearing effects induced by bubble inflation in a polymer melt undergoing foaming is discussed. The bubble inflation is so fast, similar to the explosion of dynamite, that a complex composite stress field is exerted on the polymer melt around the inflating bubble. An expected dispersion effect of nanogranules in a polymer melt by bubble inflation has been shown by experiments. And a model, which we call In Situ Bubble Stretching (ISBS), is proposed. Comparison of a theoretical analysis of the dispersion effect is given by the ISBS method with the results from experimental scanning electron microscope micrographs given reasonable grounds for support of our hypothesis.

Keywords

Type
Research Article
Information
The European Physical Journal - Applied Physics , Volume 38 , Issue 3 , June 2007 , pp. 239 - 242
Copyright
© EDP Sciences, 2007

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