Analysis of nanogranule dispersion using the ISBS method
Beijing University of Chemical Technology, Beijing 100029, P.R.
Corresponding author: email@example.com
Revised: 8 January 2007
Published online: 13 June 2007
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.
PACS: 81.70.Cv – Nondestructive testing: ultrasonic testing, photoacoustic testing / 81.20.Hy – Forming; molding, extrusion etc
© EDP Sciences, 2007