α - to - β transformation on PVDF films obtained by uniaxial stretch

The α to β phase transformation of PVDF through the stretching process at different temperatures was investigated. The optimum stretching conditions were studied and characterised by infrared spectroscopy and differential scanning calorimetry. The maximum β−phase content was achieved at 80ºC and a s...

Full description

Bibliographic Details
Main Author: Sencadas, Vítor João Gomes Silva (author)
Other Authors: Moreira, V. (author), Lanceros-Méndez, S. (author), Pouzada, A. S. (author), Gregório Júnior, R. (author)
Format: conferencePaper
Language:eng
Published: 2006
Subjects:
Ferroelectrics
Mechanical properties
Polymers
PVDF
FTIR
SEM
Science & Technology
Online Access:http://hdl.handle.net/1822/5170
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/5170
Description
Summary:The α to β phase transformation of PVDF through the stretching process at different temperatures was investigated. The optimum stretching conditions were studied and characterised by infrared spectroscopy and differential scanning calorimetry. The maximum β−phase content was achieved at 80ºC and a stretch ratio of 5. Accompanying the phase transformation, a orientation of the polymer chains and a packing of the crystalline structure is observed. The stretch ratio does not significantly affect the degree of crystallinity.

Similar Items