Abstract
The dynamic viscoelasticity parameters of Polyvinyl Butyral (PVB) film, the interlayer material of automotive windshield) are measured based on dynamic mechanical analysis (DMA) method, and the effects of frequency, temperature, production process and thickness of PVB film on its viscoelasticity are systematically investigated. The results show that as frequency increases and temperature falls, the PVB film will gradually change from high-elastic state to glassy state, and with the rise in frequency the glass transition temperature of PVB film will increase basically linearly. The production process and thickness of PVB film also have certain influence on its viscoelasticity. Finally the constants of Williams-Landel-Ferry equation for PVB film are obtained by curve-fitting.
| Original language | English |
|---|---|
| Pages (from-to) | 898-904+927 |
| Journal | Qiche Gongcheng/Automotive Engineering |
| Volume | 34 |
| Issue number | 10 |
| Publication status | Published - Oct 2012 |
Bibliographical note
Copyright:Copyright 2012 Elsevier B.V., All rights reserved.
Keywords
- Dynamic mechanical analysis
- Glass transition temperature
- PVB film
- Viscoelasticity
ASJC Scopus subject areas
- Automotive Engineering