Coupling selective laser sintering and supercritical CO<sub>2</sub> foaming for 3D printed porous polyvinylidene fluoride with improved piezoelectric performance.

RSC Adv · 2021 · PMC9033981 · PMID 35479375

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an increasing trendno p-value reported

5 , the V oc value shows an increasing trend first and then decreases as the foaming temperature increases, and V oc reaches a maximum of 4.5 V at 165 °C.

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