Characterization of solution-processed double-walled carbon nanotube/ poly(vinylidene fluoride) nanocomposites

Atheer Almasri; Zoubeida Ounaies; Yeon Seok Kim; Jaime Grunlan

doi:10.1002/mame.200700229

Characterization of solution-processed double-walled carbon nanotube/ poly(vinylidene fluoride) nanocomposites

Atheer Almasri, Zoubeida Ounaies, Yeon Seok Kim, Jaime Grunlan

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

Dispersion of CNTs in polymers can yield impressive property enhancements at low volume fractions, thus maintaining the inherent processability of the polymer. In particular, they can improve the electromechanical response of piezoelectric polymers by lowering the actuationvoltage and increasing strain and stress response. In this work, piezo-electric PVDF and DWNTs are solutioncast into films. SEM of fracture surfaces confirms good dispersion, and electrical conductivity measurements reveal a low percolation threshold (0.23 vol.-%). The effect of CNTs on storage modulus, T_c, T_m and T_g of PVDF is studied. Electromechanical strain is observed at low actuation voltages, possibly due to enhanced local electric field in the presence of DWNTs.

Original language	English (US)
Pages (from-to)	123-131
Number of pages	9
Journal	Macromolecular Materials and Engineering
Volume	293
Issue number	2
DOIs	https://doi.org/10.1002/mame.200700229
State	Published - Feb 13 2008

All Science Journal Classification (ASJC) codes

General Chemical Engineering
Organic Chemistry
Polymers and Plastics
Materials Chemistry

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abstract = "Dispersion of CNTs in polymers can yield impressive property enhancements at low volume fractions, thus maintaining the inherent processability of the polymer. In particular, they can improve the electromechanical response of piezoelectric polymers by lowering the actuationvoltage and increasing strain and stress response. In this work, piezo-electric PVDF and DWNTs are solutioncast into films. SEM of fracture surfaces confirms good dispersion, and electrical conductivity measurements reveal a low percolation threshold (0.23 vol.-%). The effect of CNTs on storage modulus, Tc, Tm and Tg of PVDF is studied. Electromechanical strain is observed at low actuation voltages, possibly due to enhanced local electric field in the presence of DWNTs.",

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AU - Grunlan, Jaime

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AB - Dispersion of CNTs in polymers can yield impressive property enhancements at low volume fractions, thus maintaining the inherent processability of the polymer. In particular, they can improve the electromechanical response of piezoelectric polymers by lowering the actuationvoltage and increasing strain and stress response. In this work, piezo-electric PVDF and DWNTs are solutioncast into films. SEM of fracture surfaces confirms good dispersion, and electrical conductivity measurements reveal a low percolation threshold (0.23 vol.-%). The effect of CNTs on storage modulus, Tc, Tm and Tg of PVDF is studied. Electromechanical strain is observed at low actuation voltages, possibly due to enhanced local electric field in the presence of DWNTs.

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Characterization of solution-processed double-walled carbon nanotube/ poly(vinylidene fluoride) nanocomposites

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