NOVEL PIEZOELECTRIC COMPOSITION AND FILMS WITH HIGH D33 VALUES AND IMPROVED ADHESION AND FLEXIBILITY

Disclosed are piezoelectric compositions and films with high D33 values and improved surface smoothness, scratch resistance and/or adhesion. The compositions and films can have a combination of benefits over the prior art compositions and films by having two different polymers (i.e., EVA and PVDF-Tr...

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Main Authors BHOTLA, Venkata Ramanarayanan Ganapathy, MARKANDAY, Meghna, SINGH, Pradeep, SIKDER, Arun Kumar
Format Patent
LanguageEnglish
French
Published 24.12.2020
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Abstract Disclosed are piezoelectric compositions and films with high D33 values and improved surface smoothness, scratch resistance and/or adhesion. The compositions and films can have a combination of benefits over the prior art compositions and films by having two different polymers (i.e., EVA and PVDF-TrFE-CFE) blended into a polymer matrix, to which is added piezoelectric additives like PZT, BaTiO3, etc. at greater than 70-90 wt.% loading. Devices utilizing the compositions and films are also disclosed. Such devices can include sensors, transducers, actuators, or wearable devices. L'invention concerne des compositions piézoélectriques et des films ayant des valeurs D33 élevées et un lissé de surface, une résistance aux rayures et/ou une adhérence améliorés. Les compositions et les films peuvent avoir une combinaison d'avantages par rapport aux compositions et films de l'art antérieur en ayant deux polymères différents (c'est-à-dire EVA et PVDF-TrFE-CFE) mélangés dans une matrice polymère, à laquelle sont ajoutés des additifs piézoélectriques comme le PZT, le BaTiO3, etc. à une charge supérieure à 70-90 % en poids. L'invention porte également sur des dispositifs utilisant les compositions et films. De tels dispositifs peuvent comprendre des capteurs, des transducteurs, des actionneurs ou des dispositifs portables.
AbstractList Disclosed are piezoelectric compositions and films with high D33 values and improved surface smoothness, scratch resistance and/or adhesion. The compositions and films can have a combination of benefits over the prior art compositions and films by having two different polymers (i.e., EVA and PVDF-TrFE-CFE) blended into a polymer matrix, to which is added piezoelectric additives like PZT, BaTiO3, etc. at greater than 70-90 wt.% loading. Devices utilizing the compositions and films are also disclosed. Such devices can include sensors, transducers, actuators, or wearable devices. L'invention concerne des compositions piézoélectriques et des films ayant des valeurs D33 élevées et un lissé de surface, une résistance aux rayures et/ou une adhérence améliorés. Les compositions et les films peuvent avoir une combinaison d'avantages par rapport aux compositions et films de l'art antérieur en ayant deux polymères différents (c'est-à-dire EVA et PVDF-TrFE-CFE) mélangés dans une matrice polymère, à laquelle sont ajoutés des additifs piézoélectriques comme le PZT, le BaTiO3, etc. à une charge supérieure à 70-90 % en poids. L'invention porte également sur des dispositifs utilisant les compositions et films. De tels dispositifs peuvent comprendre des capteurs, des transducteurs, des actionneurs ou des dispositifs portables.
Author MARKANDAY, Meghna
SIKDER, Arun Kumar
SINGH, Pradeep
BHOTLA, Venkata Ramanarayanan Ganapathy
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Snippet Disclosed are piezoelectric compositions and films with high D33 values and improved surface smoothness, scratch resistance and/or adhesion. The compositions...
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Title NOVEL PIEZOELECTRIC COMPOSITION AND FILMS WITH HIGH D33 VALUES AND IMPROVED ADHESION AND FLEXIBILITY
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