Title :
Characterization of the influence of processing conditions on polarization phenomena in PVC
Author :
Dandurand, Jany ; Lacabanne, Colette ; Boulet, Jean Pierre
Author_Institution :
Lab. de Phys. des Solides, Univ. Paul Sabatier, Toulouse, France
Abstract :
The Thermally Stimulated Current (TSC) spectroscopy has been applied to the characterization of the influence of processing conditions on polarization phenomena of PVC. Two relaxation modes are observed, independently from the thermomechanical history of the polymer. Both modes can be described by continuous distribution of relaxation times following a compensation law. So, each mode has been characterized by a compensation time and the range of the activation enthalpies. The compensation temperature is particularly sensitive to the thermomechanical history of the polymer and to the presence of lubricants and plasticizers
Keywords :
dielectric polarisation; dielectric relaxation; electrets; organic insulating materials; polymers; thermally stimulated currents; PVC; activation enthalpies; compensation law; continuous distribution of relaxation times; lubricants; plasticizers; polarization phenomena; processing conditions; relaxation modes; thermally stimulated current spectroscopy; thermomechanical history; Chemical analysis; History; Lubricants; Physics; Polarization; Polymers; Solid state circuits; Spectroscopy; Temperature; Thermomechanical processes;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.514814
