Rheological analysis of polyvinyl butyral near the glass transition temperature

Yi-Je Juang, L. James Lee, Kurt W. Koelling

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

In many polymer manufacturing operations, the material is processed near the glass transition temperature (Tg). Examples are thermoforming, blow molding, film blowing, hot embossing, forging, plastic welding, and de-airing in safety glass lamination. In these processes, solid-like behaviors such as strain hardening and yielding play important roles. These material properties cause the material to flow (or deform) in a way that substantially differs from a polymer melt. In order to understand the flow behavior near the Tg, polyvinyl butyral (PVB), a rubbery polymer used in safety glass lamination, was studied in this work. The flow properties of the polymer above the Tg were characterized by using both shear and elongational rheometers, and a tensile tester. The measured flow properties were described by a viscoelastic constitutive model.

原文English
頁(從 - 到)275-292
頁數18
期刊Polymer Engineering and Science
41
發行號2 SPEC. ISS
DOIs
出版狀態Published - 2001 二月 1

All Science Journal Classification (ASJC) codes

  • 化學工程 (全部)
  • 聚合物和塑料
  • 材料化學

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