Title :
Investigation of the EPDM copolymer using the pressure wave propagation method
Author :
Zanin, M. ; Alquie, C. ; Giacometti, José A. ; Lewiner, J.
Author_Institution :
Dept. de Engenharia de Materials, Univ. Federal de Sao Carlos, Brazil
Abstract :
The authors report the use of the pressure wave propagation (PWP) method to investigate the electrical properties of EPDM (ethylene-propylene copolymer) filled with different percentages of alumina. First the authors determine the velocity, attenuation, and dispersion of the pressure wave pulse for varying percentages of the filler. Then they discuss the charge injection process, from which it is concluded that charge injection is stronger when the content of alumina filler is increased
Keywords :
electrets; permittivity; polymers; Al2O3 filler; EPDM copolymer; attenuation; charge injection process; dispersion; electret; ethylene-propylene copolymer; pressure wave propagation method; velocity; Attenuation; Costs; Current measurement; Minerals; Optical propagation; Optical pulse generation; Polymers; Pressure measurement; Pulse measurements; Time measurement;
Conference_Titel :
Electrets, 1991. (ISE 7) Proceedings., 7th International Symposium on (Cat. No.91CH3029-6)
Conference_Location :
Berlin
Print_ISBN :
0-7803-0112-9
DOI :
10.1109/ISE.1991.167235
