Highly sensitive piezo particulate-polymer foam composites for robotic skin application

Hamideh Khanbareh, Kevin de Boom, Sybrand van der Zwaag, Wilhem Albert Groen

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Tri-phase PZT-porous polyurethane (PU) composites are investigated with the aim of developing conformable, highly sensitive tactile sensors for application in Human-Machine Interactions. The main goal is to reduce the dielectric constant of the polymer matrix, and improve flexibility of traditional diphase piezo-composites, consisting of ceramic particles in a dense polymeric matrix, by adding a third (gaseous) phase to the system. The presence of the gaseous component in the polymer matrix in the form of well-distributed spherical inclusions effectively decreases the polymer dielectric permittivity, which improves the piezoelectric voltage coefficient of the composites significantly. The unique combination of dielectrophoretic structuring of PZT particles and the addition of a gaseous phase to the polymer resin results in the highest performance of the particulate composite sensors reported in the literature so far. The g33 values of the newly developed triphase composites are twice that of the structured di-phase PZT-dense PU composites (80 mV.m/N) and more than five times the g33 value of bulk PZT ceramics (24-28 mV.m/N).
LanguageEnglish
Pages25-33
JournalFerroelectrics
Volume515
Issue number1
Early online date9 Oct 2017
DOIs
StatusE-pub ahead of print - 9 Oct 2017

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robotics
foams
particulates
Foams
Skin
Polymers
Robotics
composite materials
Composite materials
polymers
Polyurethanes
Polymer matrix
Permittivity
matrices
ceramics
permittivity
Sensors
resins
flexibility
Resins

Cite this

Highly sensitive piezo particulate-polymer foam composites for robotic skin application. / Khanbareh, Hamideh; de Boom, Kevin; van der Zwaag, Sybrand; Groen, Wilhem Albert.

In: Ferroelectrics, Vol. 515, No. 1, 09.10.2017, p. 25-33.

Research output: Contribution to journalArticle

Khanbareh, Hamideh ; de Boom, Kevin ; van der Zwaag, Sybrand ; Groen, Wilhem Albert. / Highly sensitive piezo particulate-polymer foam composites for robotic skin application. In: Ferroelectrics. 2017 ; Vol. 515, No. 1. pp. 25-33.
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