PIEZOELECTRIC POLYMER BLEND AND COMPOSITE COMPOSITIONS INCLUDING LITHIUM-DOPED POTASSIUM SODIUM NIOBATE

A polymer composite exhibiting piezoelectric properties can be formed for flexible and/or thin film applications, in which the polymer composite includes a polymer matrix and a piezoelectric ceramic filler embedded in the polymer matrix. The polymer matrix may include at least two polymers: a first...

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Hauptverfasser: VENKATA, Ramanarayanan Ganapathy Bhotla, OWENS, Donald, LAMBERTUS, Theodorus Hoeks, GUHATHAKURTA, Soma
Format: Patent
Sprache:eng
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Zusammenfassung:A polymer composite exhibiting piezoelectric properties can be formed for flexible and/or thin film applications, in which the polymer composite includes a polymer matrix and a piezoelectric ceramic filler embedded in the polymer matrix. The polymer matrix may include at least two polymers: a first polymer and a second polymer. The first polymer may be a fluorinated polymer, and the second polymer may be compatible with the first polymer and have a dielectric constant of less than approximately 20. The piezoelectric ceramic filler can be lithium doped potassium sodium niobite (KNLN), and be approximately 40-70% by volume of the polymer composite. The remaining 30-60% by volume may be the polymer matrix, which may itself be approximately 5-20% by weight second polymer and 80-95% fluorinated polymer.