Flow-induced crystallization in poly-1-butene: the shish-kebab transition
Source abstract
Abstract
In this work, flow-birefringence measurements have been performed to monitor the orientation development during application of high shear flow in undercooled polymer melts. It is demonstrated that a critical shear rate and a critical shear strain are required in order to form strongly oriented shish-kebab structures. After reaching such critical conditions, the crystallization kinetics - measured both by means of birefringence as well as transmitted intensity measurements - is drastically increased. The results generated in this work suggest that Janeschitz-Kriegl’s [1] hypothesis about the need for a specific amount of work required to form shish-kebab structures is valid, at least for the conditions investigated.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Rheology and Fluid Dynamics Studies · Polymer crystallization and properties · Polymer Foaming and Composites
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References (6)
Show source-provided references
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