Rheology of Isothermally Crystallized PBT Nanocomposites with Clay Loadings under the Percolation Threshold. Journal of Polymer Science Part B: Polymer Physics, 2007, 45, 229-238.
writer：Defeng Wu, Chixing Zhou, Ming Zhang.
keywords：poly(butylenes terephthalate); clay; nanocomposites; crystallization; intercalation; percolation.
source：期刊
specific source：Journal of Polymer Science Part B: Polymer Physics
Issue time：2007年
Journal of Polymer Science Part B: Polymer Physics, 2007, 45, 229-238.
ABSTRACT:
This paper describes the structural evolution of clay in the poly(butylenes terephthalate) nanocomposites (PCN) with lower clay loadings than percolation threshold during the isothermal crystallization process. The study of structure and rheological properties reveals that the intercalation and detachment level of clay enhances in the sample crystallized at high temperature (210oC) in contrast to that in the original PCN, resulting in the formation of rheological percolation network. However, to those PCNs crystallized at the low temperature (190oC), the further structural evolution of tactoids is very small. All the experimental results indicate that the morphologies of clay can further evolve during crystallization process, but the evolution level is strongly dependent on the crystallization temperature.
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