Bio-based soft elastomeric capacitor for structural health monitoring applications

Sari Kharroub, Simon Laflamme, Samy Madbouly, Filippo Ubertini

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Recent advances in flexible electronics have enabled the development of large-area electronics, which are typically fabricated from petroleum-based polymers. With the rapidly growing market of flexible electronics and sensors, there is a pressure to move toward environmentally friendly products. In this article, a bio-based polyurethane soft elastomeric capacitor for structural health monitoring applications is presented. The sensor’s dielectric is fabricated using castor oil–based waterborne polyurethane, mixed with titanium dioxide, which replaces petroleum-based dielectric materials (e.g. styrene-ethylene/butylene-styrene) previously used by the authors. A critical advantage of the proposed castor oil–based polyurethane over styrene-ethylene/butylene-styrene is the environmentally friendly nature of the bio-based polymer and water-based fabrication process of the dielectric that limits the use of solvents. Static characterization demonstrates the linearity of the sensor and its ability to transduce local strain of large surfaces into change in capacitance. Material test results show good physical and chemical properties, despite a decay of the dielectric that occurs after the first 16 days of fabrication.

Original languageEnglish (US)
Pages (from-to)158-167
Number of pages10
JournalStructural Health Monitoring
Volume14
Issue number2
DOIs
StatePublished - Mar 26 2015

Fingerprint

Styrene
Structural health monitoring
Polyurethanes
Capacitors
Flexible electronics
Health
Petroleum
Sensors
Polymers
Ethylene
Crude oil
Fabrication
Titanium dioxide
Chemical properties
Capacitance
Electronic equipment
Physical properties
Pressure
elastomeric
Water

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Mechanical Engineering

Cite this

Kharroub, Sari ; Laflamme, Simon ; Madbouly, Samy ; Ubertini, Filippo. / Bio-based soft elastomeric capacitor for structural health monitoring applications. In: Structural Health Monitoring. 2015 ; Vol. 14, No. 2. pp. 158-167.
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Bio-based soft elastomeric capacitor for structural health monitoring applications. / Kharroub, Sari; Laflamme, Simon; Madbouly, Samy; Ubertini, Filippo.

In: Structural Health Monitoring, Vol. 14, No. 2, 26.03.2015, p. 158-167.

Research output: Contribution to journalArticle

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