PIEZOELECTRIC COMPOSITES HAVING IMMISCIBLE POLYMER MATERIALS AND USE THEREOF IN ADDITIVE MANUFACTURING
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United States of America Patent
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Issued Date -
Nov 9, 2023
app pub date -
Mar 22, 2022
filing date -
Mar 23, 2021
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Abstract
Parts made by additive manufacturing are often structural in nature, rather than having functional properties conveyed by a polymer or other component present therein. Printed parts having piezoelectric properties may be formed using compositions comprising a polymer matrix comprising a first polymer material and a second polymer material that are immiscible with each other, and a plurality of piezoelectric particles located in at least a portion of the polymer matrix. The piezoelectric particles may remain substantially non-agglomerated when combined with the polymer matrix. The compositions may define an extrudable material that is a composite having a form factor such as a composite filament, a composite pellet, a composite powder, or a composite paste. Additive manufacturing processes using the compositions may comprise forming a printed part by depositing the compositions layer-by-layer.
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