https://doi.org/10.1051/epjap/2020200158
Regular Article
Piezoelectric β-polymorph formation of new textiles by surface modification with coating process based on interfacial interaction on the conformational variation of poly (vinylidene fluoride) (PVDF) chains★
1
BGIM Laboratory, Higher Normal School (ENS), Hassan II University, Casablanca, Morocco
2
REMTEX Laboratory, Higher School of Textile and Clothing Industries (ESITH), Casablanca, Morocco
3
Laboratory of Physics of Condensed Matter (LPMC), Faculty of Sciences Ben M'Sik Hassan II University, Casablanca, Morocco
4
Hassan II University, Faculty of Sciences Aïn Chock, Laboratory of Renewable Energy and Dynamic Systems, BP 5366 Maarif, 20100
Casablanca, Morocco
5
LAS Laboratory of Setif, Mohamed el Bachir el Ibrahimi BBA University, Setif, Algeria
6
Laboratory of Engineer Science for Energy, ENSA, Chouaïb Doukkali University, El Jadida, Morocco
7
Center for Textile Science and Engineering, Department of Materials, Textiles and Chemical Engineering, Ghent University, Ghent, Belgium
* e-mail: chakhchaoui.nabil@gmail.com
Received:
31
May
2020
Received in final form:
5
July
2020
Accepted:
17
July
2020
Published online: 4 September 2020
Novel textiles have received a lot of attention from researchers in the last decade due to some of their unique features. The introduction of intelligent materials into textile structures offers an opportunity to develop multifunctional textiles, such as sensing, reacting, conducting electricity and performing energy conversion operations. In this research work nanocomposite-based highly piezoelectric and electroactive β-phase new textile has been developed using the pad-dry-cure method. The deposition of poly (vinylidene fluoride) (PVDF) − carbon nanofillers (CNF) − tetraethyl orthosilicate (TEOS), Si(OCH2CH3)4 was acquired on a treated textile substrate using coating technique followed by evaporation to transform the passive (non-functional) textile into a dynamic textile with an enhanced piezoelectric β-phase. The aim of the study is the investigation of the impact the coating of textile via piezoelectric nanocomposites based PVDF-CNF (by optimizing piezoelectric crystalline phase). The chemical composition of CT/PVDF-CNC-TEOS textile was detected by qualitative elemental analysis (SEM/EDX). The added of 0.5% of CNF during the process provides material textiles with a piezoelectric β-phase of up to 50% has been measured by FTIR experiments. These results indicated that CNF has high efficiency in transforming the phase α introduced in the unloaded PVDF, to the β-phase in the case of nanocomposites. Consequently, this fabricated new textile exhibits glorious piezoelectric β-phase even with relatively low coating content of PVDF-CNF-TEOS. The study demonstrates that the pad-dry-cure method can potentially be used for the development of piezoelectric nanocomposite-coated wearable new textiles for sensors and energy harvesting applications. We believe that our study may inspire the research area for future advanced applications.
© EDP Sciences, 2020
