科研之友
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摘要
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.
- 出版日期2007-6
- 单位北京化工大学
