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- W2034187622 abstract "Abstract Recent futuristic applications of flexible electret loudspeakers have garnered much interest for these novel loudspeakers. To increase the loudspeaker properties, a processing method was developed to improve the electret and mechanical properties of porous PTFE film. Taking a thin porous PTFE film as the base material, a cyclic olefin copolymer (COC) was coated to a base material to form a PTFE/COC composite film. Results show that the composite material improves the advantageous characteristics when used as an electret diaphragm for loudspeakers. By measuring the surface potential decay and the elastic modulus, properties of a standard porous PTFE film were compared to an improved composite PTFE/COC film. Experimental results showed that the composite PTFE/COC possess the following advantages: (1) 80% higher surface potential after 10 days at room temperature, (2) a better thermal resistance of charge storage, and (3) a 643% higher elastic modulus. Therefore, our novel composite material can be used to create a much improved electret diaphragm for flexible electret loudspeakers." @default.
- W2034187622 created "2016-06-24" @default.
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- W2034187622 date "2010-12-01" @default.
- W2034187622 modified "2023-10-06" @default.
- W2034187622 title "Charge storage and mechanical properties of porous PTFE and composite PTFE/COC electrets" @default.
- W2034187622 cites W598599224 @default.
- W2034187622 doi "https://doi.org/10.1515/epoly.2010.10.1.326" @default.
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