NDLI: The electret properties of two kinds of poly(vinylidene fluoride-hexafluoropropylene) copolymer films

Content Provider	IEEE Xplore Digital Library
Author	Feipeng Wang Zhongfu Xia Xunlin Qiu Jun Shen
Copyright Year	2005
Description	Author affiliation: Pohl Inst. of Solid State Phys., Tongji Univ., Shanghai, China (Feipeng Wang; Zhongfu Xia; Xunlin Qiu; Jun Shen)
Abstract	P(VDF-HFP) (poly(vinylidene fluoride-hexafluoro-propylene)) copolymer is a new member of PVDF family. In this paper, the electret properties of the two kinds of casting prepared P(VDF-HFP) copolymer films whose content of HFP is 4.7% and 5.9% respectively were discussed with the focus on the influences of mechanically thermal stretching process and of the content of HFP on electret properties of the said copolymer. Experimental results point out that the said copolymer electret film is a polar material, i.e. there exist both oriented dipoles and deposited space charges in the film after charging. The mechanically thermal stretching process not only increases the density of oriented dipoles and deposited space charges but also improves the stability of deposited space charges; however, the increase of HFP content in the copolymer has a negative impact on the density of oriented dipoles and deposited space charges. The measurement result by means of Laser Doppler Vibrometer shows the copolymer in which the HFP content is 4.7% has a notable converse coefficient as high as 130pm/V.
Starting Page	153
Ending Page	156
File Size	1582058
Page Count	4
File Format	PDF
ISBN	0780391160
DOI	10.1109/ISE.2005.1612342
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-11
Publisher Place	Brazil
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrets Mechanical factors Casting Space charge Temperature Piezoelectric films Solvents Thermal stability Acoustic transducers Aluminum
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Piezoelectric properties and charge dynamics in poly(vinylidene fluoride-hexafluoropropylene) copolymer films with different content of HEP

Thin-Film Electret and Condenser Ultrasonic Transducers

Novel fluoro-polymer electret: Poly(vinylidenfluoride-hexafluoroisobutylene)

Enhanced piezoelectric activity in melt-quenched and stretched poly(vinylidene fluoride-hexafluoropropylene) films

Unipolar ferroelectrets - Following the example of the electret microphone more closely

Electret and piezoelectric properties in the laminated systems of PTFE and PUE polymer films

Thermal stability of polarization in P(VDF-TFE) copolymer films

Electromechanical response of cellular electret films

Influence of porosity on stability of charge storage and piezoelectricity for porous PTFE film electrets

The electret properties of two kinds of poly(vinylidene fluoride-hexafluoropropylene) copolymer films

Similar Documents

Piezoelectric properties and charge dynamics in poly(vinylidene fluoride-hexafluoropropylene) copolymer films with different content of HEP

Thin-Film Electret and Condenser Ultrasonic Transducers

Novel fluoro-polymer electret: Poly(vinylidenfluoride-hexafluoroisobutylene)

Enhanced piezoelectric activity in melt-quenched and stretched poly(vinylidene fluoride-hexafluoropropylene) films

Unipolar ferroelectrets - Following the example of the electret microphone more closely

Electret and piezoelectric properties in the laminated systems of PTFE and PUE polymer films

Thermal stability of polarization in P(VDF-TFE) copolymer films

Electromechanical response of cellular electret films

Influence of porosity on stability of charge storage and piezoelectricity for porous PTFE film electrets

The electret properties of two kinds of poly(vinylidene fluoride-hexafluoropropylene) copolymer films