Electroresponsive Polymers and Their Applications: Volume 889Vivek Bharti Increasing research and development efforts have been dedicated to the field of electroresponsive polymers (ERPs), including the development of materials and devices. In addition to their exceptional physical properties and low manufacturing costs, these materials also show remarkable charge storage and electrical properties. One particular class of these materials is the electroactive polymer (EAP), or artificial muscle - a new type of smart material with a broad range of potential applications such as electromechanical devices, energy storage devices, artificial muscles, air filtration, insulation, etc. This book shows research and commercial advances in the field and highlights the significant industry involvement: 3M is implementing piezomaterials in stethoscopes; Measurement Specialties Inc. highlights a range products employing PVDF sensors and EMFIT Ltd. presents ferroelectrets, in which microporous polymers show a piezoelectric coefficient at the level of ~300 pC/N. Additional topics include: sensors and their applications; polymer actuators and their applications; and polymer dielectrics and charge storage applications. |
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Page 115
... modulus of PET . The dynamic real modulus of polypyrrole actuators under different conditions . The rectangular stress input was applied to the actuator with 1.47MPa initial value , 0.3MPa amplitude and 0.5Hz frequency . Simultaneously ...
... modulus of PET . The dynamic real modulus of polypyrrole actuators under different conditions . The rectangular stress input was applied to the actuator with 1.47MPa initial value , 0.3MPa amplitude and 0.5Hz frequency . Simultaneously ...
Page 116
... modulus ( A ) with applied potential shown with the resultant strain ( B ) and and current ( C ) in 1mV / s . Figure 4 shows that increasing the speed of the voltage scan decreases the effect on real modulus variation . The change in ...
... modulus ( A ) with applied potential shown with the resultant strain ( B ) and and current ( C ) in 1mV / s . Figure 4 shows that increasing the speed of the voltage scan decreases the effect on real modulus variation . The change in ...
Page 117
... Modulus [ MPa ] 110 88 105 100 95 50 +07 [ V ] +0.5 [ V ] 10M 100 150 Time [ min ] 100 50 Time [ min ] ̈ : 05M " 150 Figure 5. Effect of long hold periods at different potentials on the measured modulus . CONCLUSIONS In the research ...
... Modulus [ MPa ] 110 88 105 100 95 50 +07 [ V ] +0.5 [ V ] 10M 100 150 Time [ min ] 100 50 Time [ min ] ̈ : 05M " 150 Figure 5. Effect of long hold periods at different potentials on the measured modulus . CONCLUSIONS In the research ...
Contents
Lesserknown Piezoelectric and Pyroelectric Applications | 3 |
Electronic Acoustic Sensor | 15 |
Piezoelectric Polymers | 23 |
Copyright | |
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2006 Materials Research actuators anode Appl applications applied voltage azopolymers BZ reaction C/m³ Charge density p(x Chem circuits coefficients composite conducting polymer copolymer crystalline crystallization decrease devices diaphragm dielectric constant effect elastic modulus electrets electric field electroactive polymers electrode electromechanical electrospinning electrostrictive Emfit EMI-Tf energy density energy harvesting experimental ferroelectric ferroelectric polymers fibers frequency gate dielectrics increase injection interface ionic liquid IPMC irradiated samples ISBN layer LDPE LEB-PANI Materials Research Society measured mechanical membranes method micro-dots modulus Nafion observed OFETs organic semiconductors OTFT P(VDF-CTFE P(VDF-TrFE parameters Peak phase Phys piezoelectric polarization polyaniline polymeric polypyrrole Proc properties PVDF pyroelectric response sensitivity sensor shown in Figure shows simulation SiO2 solution solvent space charge strain stress structure substrate surface Symp terpolymer thermal thickness thin film transducers uptake Volume Zhang