DISENTANGLED PVDF FOR HIGH ELECTROMECHANICAL EFFICIENCY THIN FILMS AND FIBERS
A polymer article includes an at least partially disentangled polyvinylidene fluoride (PVDF) family member composition and is characterized by an elastic modulus of at least 4 GPa and an electromechanical coupling factor (k31) of at least 0.1 at room temperature. A method of manufacturing such a pol...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | English |
Published |
18.07.2024
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Subjects | |
Online Access | Get full text |
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Summary: | A polymer article includes an at least partially disentangled polyvinylidene fluoride (PVDF) family member composition and is characterized by an elastic modulus of at least 4 GPa and an electromechanical coupling factor (k31) of at least 0.1 at room temperature. A method of manufacturing such a polymer article may include forming an at least partially disentangled polymer composition into a polymer thin film or fiber, applying a tensile stress to the polymer article in an amount effective to induce a stretch ratio of at least approximately 5 in the thin film or fiber, and applying an electric field across a thickness dimension of the polymer article. Annealing and poling steps may separately or simultaneously accompany and/or follow the act of stretching. |
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Bibliography: | Application Number: US202318454499 |