title: Large Displacement in Relaxor Ferroelectric Terpolymer Blend Derived Actuators Using Al Electrode for Braille Displays.
abstract: Poly(vinylidene fluoride) (PVDF) based polymers are attractive for applications for artificial muscles, high energy density storage devices etc. Recently these polymers have been found great potential for being used as actuators for refreshable full-page Braille displays for visually impaired people in terms of light weight, miniaturized size, and larger displacement, compared with currently used lead zirconate titanate ceramic actuators. The applied voltages of published polymer actuators, however, cannot be reduced to meet the requirements of using city power. Here, we report the polymer actuator generating quite large displacement and blocking force at a voltage close to the city power. Our embodiments also show good self-healing performance and disuse of lead-containing material, which makes the Braille device safer, more reliable and more environment-friendly.
authors.affiliation: Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, China.
authors.forename: S G
authors.initials: SG
authors.lastname: Lu
authors.affiliation: School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006, China.
authors.forename: X
authors.initials: X
authors.lastname: Chen
authors.affiliation: Mechanical and Nuclear Engineering Department, The Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: T
authors.initials: T
authors.lastname: Levard
authors.affiliation: Mechanical and Nuclear Engineering Department, The Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: P J
authors.initials: PJ
authors.lastname: Diglio
authors.affiliation: Mechanical and Nuclear Engineering Department, The Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: L J
authors.initials: LJ
authors.lastname: Gorny
authors.affiliation: Mechanical and Nuclear Engineering Department, The Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: C D
authors.initials: CD
authors.lastname: Rahn
authors.affiliation: Materials Research Institute and Electrical Engineering Department, The Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: Q M
authors.initials: QM
authors.lastname: Zhang
mesh_terms: D000465:Algorithms; D008962:Models, Theoretical