Optimization of piezoelectric properties of cellular polypropylene films by repeated expansion

Proceedings - International Symposium on Electrets

Volumn 2005, Issue , 2005, Pages 51-54

  Zhang, Xiaoqing ^a,b   Sessler, Gerhard M ^a   Hillenbrand, Joachim ^a  

^a DARMSTADT UNIVERSITY OF TECHNOLOGY   (Germany)

^b TONGJI UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

OPTIMIZATION; PIEZOELECTRIC MATERIALS; POLYPROPYLENE OXIDES; THERMAL EXPANSION;

CELLULAR POLYPROPYLENE FILMS; DOUBLE EXPANSION PROCESS; EXPANSION PRESSURES; PIEZOELECTRIC PROPERTIES;

POLYMER FILMS;

EID: 33646694217     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (9)

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2. M. Paajanen, M. Wegener, and R. Gerhard-Multhaupt "Understanding the role of the gas in the voids during corona charging of cellular electret films - a way to enhance their piezoelectricity," J. Phys. D: Appl. Phys., vol. 34, pp. 2482-2488, 2001.
3. J. Hillenbrand, X. Zhang, and G. M. Sessler, "Pressure-treated cellular polypropylene with large piezoelectric coefficients" in 2003 Annual Report, Conference on Electrical Insulation and Dielectric Phenomena, IEEE New York 2003, pp. 40-43.
4. M. Wegener, W. Wirges, R. Gerhard-Multhaupt, M. Dansachmüller, R. Schwödiauer, S. Bauer-Gogonea, S. Bauer, M. Paajanen, H. Minkkinen, and J. Raukola, "Controlled inflation of voids in cellular polymer ferroelectrets: Optimizing electromechanical transducer properties," Appl. Phys. Lett. vol. 84, pp. 392-394, 2004.
5. 33 coefficient of cellular polypropylene subjected to expansion by pressure treatment," Appl. Phys. Lett. vol. 85, pp. 1226-1228, 2004.
6. VHD50 supplied by Treofan, Neunkirchen, Germany
7. J. Hillenbrand and G. M. Sessler, "Quasistatic and dynamic piezoelectric coefficients of polymer foams and polymer film systems," IEEE Trans. Dielectr. and Electric. Insulat. vol. 11, pp. 72-79, 2004.
8. G. M. Sessler and J. Hillenbrand, "Electromechanical response of cellular electret films," Appl. Phys. Lett. vol. 75, pp. 3405-3407, 1999.
9. 33-coefficient of cellular electret films," J. Appl.Phys., submitted.