The University of Southampton
University of Southampton Institutional Repository

Clamping effect on the piezoelectric responses of screen printed low temperature PZT/Polymer films on flexible substrates

Almusallam, Ahmed, Yang, Kai, Zhu, Dibin, Torah, Russel, Komolafe, A, Tudor, J and Beeby, S P (2015) Clamping effect on the piezoelectric responses of screen printed low temperature PZT/Polymer films on flexible substrates Smart Materials and Structures, 24, 115030-[8pp]. (doi:10.1088/0964-1726/24/11/115030).

Record type: Article


This paper introduces a new flexible lead zirconate titanate (PZT)/polymer composite material that can be screen-printed onto fabrics and flexible substrates, and investigates the clamping effect of these substrates on the characterization of the piezoelectric material. Experimental results showed that the optimum blend of PZT/polymer binder with a weight ratio of 12:1 provides a dielectric constant of 146. The measured value of the piezoelectric coefficient d33 was found to depend on the substrate used. Measured d33clp values of 70, 40, 36 pC N?1 were obtained from the optimum formulation printed on Polyester–cotton with an interface layer, Kapton and alumina substrates, respectively. The variation in the measured d33clp values occurs because of the effect of the mechanical boundary conditions of the substrate. The piezoelectric film is mechanically bonded to the surface of the substrate and this constrains the film in the plane of the substrate (the 1-direction). This constraint means that the perpendicular forces (applied in the 3 direction) used to measure d33 introduce a strain in the 1-direction that produces a charge of the opposite polarity to that induced by the d33 effect. This is due to the negative sign of the d31 coefficient and has the effect of reducing the measured d33 value. Theoretical and experimental investigations confirm a reduction of 13%, 50% and 55% in the estimated freestanding d33fs values (80 pC N?1) on Polyester–cotton, Kapton and alumina substrates, respectively. These results demonstrate the effect of the boundary conditions of the substrate/PZT interface on the piezoelectric response of the PZT/polymer film and in particular the reduced effect of fabric substrates due to their lowered stiffness.

Text pdf.pdf - Other
Restricted to Repository staff only
Download (1MB)

More information

Accepted/In Press date: 24 August 2015
Published date: 22 October 2015
Keywords: flexible substrates, fabrics, e-textiles, piezoelectric composites, polymers, energy harvesting, clamping
Organisations: EEE


Local EPrints ID: 384255
PURE UUID: fc12d993-e330-4a7b-8801-4a5c34437080
ORCID for S P Beeby: ORCID iD

Catalogue record

Date deposited: 21 Dec 2015 10:45
Last modified: 15 Sep 2017 16:33

Export record



Author: Ahmed Almusallam
Author: Kai Yang
Author: Dibin Zhu
Author: Russel Torah
Author: A Komolafe
Author: J Tudor
Author: S P Beeby ORCID iD

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.