Multi-walled carbon nanotubes (MWCNT) as compliant electrodes for dielectric elastomer actuators

2011 ◽  
Author(s):  
Soo-Lim Chua ◽  
Xin-Hui Neo ◽  
Gih-Keong Lau
Keyword(s):  
Carbon Nanotubes ◽  
Dielectric Elastomer ◽  
Dielectric Elastomer Actuators ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Compliant Electrodes

Mechanically Compliant Electrodes and Dielectric Elastomers from PEG-PDMS Copolymers

MRS Advances ◽  
2016 ◽  
Vol 1 (52) ◽  
pp. 3497-3508
Author(s):  
Aliff Hisyam A Razak ◽  
Frederikke Bahrt Madsen ◽  
Anne Ladegaard Skov
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Molecular Weight ◽  
Polymer Matrix ◽  
High Conductivity ◽  
Stress And Strain ◽  
Multi Walled Carbon Nanotubes ◽  
Highly Stretchable ◽  
Walled Carbon Nanotubes ◽  
Compliant Electrodes

ABSTRACTSoft conducting elastomers have been prepared from polydimethylsiloxane-polyethyleneglycol (PDMS-PEG) copolymer and surfactant-stabilized multi-walled carbon nanotubes (MWCNTs). The copolymer was chain-extended with PDMS of molecular weight 17.2 kg mol-1 in order to obtain a crosslinkable PDMS with molecular weight around 20 – 30 kg mol-1. MWCNTs were treated with surfactant and sonicated for better dispersion in the polymer matrix. The conductivity and mechanical properties of conducting elastomers were thoroughly investigated including stress and strain at break. The developed conducting elastomers showed high conductivity combined with inherent softness. The high conductivity and softness, PDMS-PEG copolymers with incorporated MWCNTs hold great promises as compliant and highly stretchable electrodes for stretchable devices such as electro-mechanical transducers.

A new electroactive polymer based on carbon nanotubes and carbon grease as compliant electrodes for electroactive actuators

2017 ◽  
Vol 29 (7) ◽  
pp. 1520-1530 ◽  
Author(s):  
Agata Nicolau-Kuklińska ◽  
Paulina Latko-Durałek ◽  
Paulina Nakonieczna ◽  
Kamil Dydek ◽  
Anna Boczkowska ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
The Novel ◽  
Electrical Percolation ◽  
Multi Walled Carbon Nanotubes ◽  
Electrical Percolation Threshold ◽  
Conductive Fillers ◽  
Walled Carbon Nanotubes ◽  
Silicone Matrix ◽  
Compliant Electrodes

In this article, the novel type of dielectric elastomer made of polydimethylsiloxane, multi-walled carbon nanotubes, and carbon grease is presented. The aim of the study was the development of compliant electrodes with ability for large deformation under applied voltage. The largest deformation of 47% was obtained for electrodes made of 2 wt% of multi-walled carbon nanotubes and 20 wt% of carbon grease. Electrical conductivity achieved for this material was 4.8 S/m. Good dispersion of conductive fillers within silicone matrix was obtained by calendaring technique. It was found that electrical percolation threshold for the compound was below 0.05 wt%. The structure of the material and its mechanical properties were determined. It was described that both properties, electrical conductivity and stiffness of the nanocomposite, have a significant influence on the extent of the electrode deformation. Two actuator designs are presented as the examples of application of developed material.

Multi-walled Carbon Nanotubes Penetrate into Plant Cells and Affect the Growth of Onobrychis arenaria Seedlings

Acta Naturae ◽  
2011 ◽  
Vol 3 (1) ◽  
pp. 99-106 ◽  
Author(s):  
E A Smirnova ◽  
A A Gusev ◽  
O N Zaitseva ◽  
E M Lazareva ◽  
G E Onishchenko ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Plant Cells ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Incorporation of Multi Wall Carbon Nanotubes into Glass-Surfaces via Laser-Treatment

2003 ◽  
Vol 772 ◽  
Author(s):  
T. Seeger ◽  
G. de la Fuente ◽  
W.K. Maser ◽  
A.M. Benito ◽  
A. Righi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Continuous Wave ◽  
Silica Surface ◽  
Multi Wall Carbon Nanotubes ◽  
Composite Formation ◽  
Multi Walled Carbon Nanotubes ◽  
Glass Surfaces ◽  
Walled Carbon Nanotubes ◽  
First Time ◽  
Scanning Electron

AbstractCarbon nanotubes (CNT) are interesting candidates for the reinforcement in robust composites and for conducting fillers in polymers due to their fascinating electronic and mechanical properties. For the first time, we report the incorporation of multi walled carbon nanotubes (MWNTs) into silica-glass surfaces by means of partial surface-melting caused by a continuous wave Nd:YAG laser. MWNTs were detected being well incorporated in the silica-surface. The composites are characterized using scanning electron microscopy (SEM) and Raman-spectroscopy. A model for the composite-formation is proposed based on heatabsorption by MWNTs and a partial melting of the silica-surface.

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