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Cover Image, Volume 134, Issue 10
Publication year - 2017
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.44653
Subject(s) - piezoelectricity , cover (algebra) , citation , volume (thermodynamics) , electric field , materials science , field (mathematics) , materials processing , computer science , engineering physics , nanotechnology , mechanical engineering , composite material , library science , physics , engineering , mathematics , process engineering , quantum mechanics , pure mathematics
Cellular nonpolar polymer films having eye‐like cell shape structure can present piezoelectric‐like behavior by submitting the materials to a high electric field. These materials are named ferroelectrets. Piezoelectricity in ferroelectrets results from positive and negative electrical charges created on the opposite faces of each cell surface during a charging process. A more elongated eye‐like cell shape structure can be obtained using a post‐processing thermal‐pressure treatment, resulting in a higher piezoelectric property. Denis Rodrigue and colleagues explain how these new materials, as a result of their low material and processing costs, are currently under study for several applications, such as actuators, vibration control, energy conversions, speakers, microphones, sensors. (DOI: 10.1002/app.44577 )