Fabrication and characterization of PU/NKLNT/CFs based lead-free piezoelectric composite for energy harvesting application

Zakia Chelli (1) , Hakim Hachour (1) , Malika Saidi (2) , Mourad Laghrouche (1) , Ahcène Chaouchi (2) , Mohamed Rguiti (3) , Yannick Lorgouilloux (3) , Christian Courtois (3)

1 LAMPA - Laboratoire d'Analyse & Modélisation des Phénomènes Aléatoires [Tizi-Ouzou]
2 LCAGC - Laboratoire de Chimie appliquée & génie chimique [Tizi-Ouzou]
3 LMCPA - Laboratoire des Matériaux Céramiques et Procédés Associés - EA 2443

For vibration energy harvesting applications, a flexible composite material based on a polyurethane (PU) polymer matrix filled with polycrystalline particles (Na0.535K0.48)0.966 Li0.058 Nb0.9Ta0.1O3 (NKLNT) and crushed carbon fibers (CFs) has been developed by tape-casting method. NKLNT was synthesized by the solid-state route. The powder mixture of NKLNT and CFs was dispersed in the solution obtained by dissolving polyurethane in Cyclohexane. A maximum electrical power has been obtained for 0.5 wt.% at an electrical resistance of 5.105 Ω, which allows us to supply low-power electronic systems. A high piezoelectric charge coefficient (d33 = 147pC.N−1) of NKLNT indicates its potential application in flexible energy harvesting.

Mots clés: "Energy harvesting"; "composite material"; "solid route"; "pu/NKLNT/CFs composite"; "tape-casting"

Domaines: Chimie; Sciences du Vivant [q-bio]; Sciences de l'ingénieur [physics]

Zakia Chelli, Hakim Hachour, Malika Saidi, Mourad Laghrouche, Ahcène Chaouchi, et al.. Fabrication and characterization of PU/NKLNT/CFs based lead-free piezoelectric composite for energy harvesting application. Polymer-Plastics Technology and Materials, 2021, 60 (12), pp.1344-1356. ⟨10.1080/25740881.2021.1888995⟩. ⟨hal-03480434⟩