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The Hayashi-nishi Method for Measurement of Mixing:Computer-Generated Morphologies and Impact-Modified Polymers

Published online by Cambridge University Press:  02 July 2020

M. R. Tant ,
D. B. Calvert  and
P. S. Wehner
M. R. Tant
Affiliation:
Eastman Chemical Company, P.O. Box 1972, Kingsport, TN37664
D. B. Calvert
Affiliation:
Eastman Chemical Company, P.O. Box 1972, Kingsport, TN37664
P. S. Wehner
Affiliation:
Eastman Chemical Company, P.O. Box 1972, Kingsport, TN37664
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Extract

In this work we apply the Hayashi-Nishi method for quantitatively analyzing the state of mixing of a secondary component in a polymeric matrix. We (1) evaluate the method using computer-generated morphologies and (2) compare the state of mixing of a core-shell impact modifier in polymers having differing affinity for the impact modifier. In the Hayashi-Nishi method two numbers, related to dispersion and distribution, are required to quantify the state of mixing of a secondary phase in a polymeric matrix. The 5-parameter in the Hayashi-Nishi method is defined as

The Ai's are the areas of each individual secondary phase particle or aggregate and nis the number of such particles in the image. S is related to the size distribution of these aggregate areas and is a measure of dispersion of the secondary phase in that particular image.

Type
Developments in Measuring Polymer Microstructures
Information
Microscopy and Microanalysis , Volume 4 , Issue S2: Proceedings: Microscopy & Microanalysis '98, Microscopy Society of America 56th Annual Meeting, Microbeam Analysis Society 32nd Annual Meeting, Atlanta, Georgia July 12-16, 1998 , July 1998 , pp. 830 - 831
Copyright
Copyright © Microscopy Society of America

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References

1.Hayashi, T. and Nishi, T., Kobunshi 40 (1991) 458.CrossRefGoogle Scholar
2.Hayashi, T., Watanabe, A., Tanaka, H., and Nishi, T., Kobunshi Ronbunshu 49 (1992) 373.CrossRefGoogle Scholar