TY - JOUR
T1 - Dielectric response of aramid fiber-reinforced PEEK
AU - Korbakov, Nina
AU - Harel, Hannah
AU - Feldman, Yuri
AU - Marom, Gad
PY - 2002/12/12
Y1 - 2002/12/12
N2 - The application of dielectric spectroscopy to aramid fiber-reinforced poly(ether ether ketone) (PEEK) was studied. The effect of the fiber on the dielectric response was examined for both amorphous and crystalline PEEK overwide temperature and frequency ranges. The specific effect of the fibers in the crystalline PEEK was revealed in shifting the α and β process to a higher temperature. The unique effect of the fibers was expressed by a significantly higher activation energy and lower dielectric strength for the α relaxation, reflecting a higher constraint level imposed by the fiber.
AB - The application of dielectric spectroscopy to aramid fiber-reinforced poly(ether ether ketone) (PEEK) was studied. The effect of the fiber on the dielectric response was examined for both amorphous and crystalline PEEK overwide temperature and frequency ranges. The specific effect of the fibers in the crystalline PEEK was revealed in shifting the α and β process to a higher temperature. The unique effect of the fibers was expressed by a significantly higher activation energy and lower dielectric strength for the α relaxation, reflecting a higher constraint level imposed by the fiber.
KW - Aramid reinforced PEEK
KW - Dielectric spectroscopy
KW - Relaxation processes
KW - Transcrystallinity
UR - http://www.scopus.com/inward/record.url?scp=0013285690&partnerID=8YFLogxK
U2 - 10.1002/macp.200290000
DO - 10.1002/macp.200290000
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AN - SCOPUS:0013285690
SN - 1022-1352
VL - 203
SP - 2267
EP - 2272
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
IS - 16
ER -