Enhanced electromechanical performance of carbon nano-fiber reinforced sulfonated poly(styrene-b-[ethylene/butylene]-b-styrene) actuator

Wang, Xuanlun; Oh, Il‐Kwon; Kim, Jin Bong

doi:10.1016/j.compscitech.2008.08.023

Cited by 43 publications

(32 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The slow relaxation of the tip displacement for the Nafion-based IPMC may be caused by the diffusion of water molecules to the anode side. The PVDF/PVP/PSSA-based IPMCs did not show back-relaxation, a finding that might be due to the high WUP and IEC of the PVDF/PVP/PSSA blend membranes, which provide a small amount of water for the movement of IPMCs with time after diffusion of water back to the anode side [20,46]. All of the IPMCs depicted different time constants, which might be due the different motions of IPMCs with different voltages according to the actuator's WUP, IEC, and proton conductivity.…”

Section: Tip Displacement Of Ipmcs Under DC and Ac Voltagesmentioning

confidence: 78%

See 1 more Smart Citation

Dynamic mechanical, electrical, and actuation properties of ionic polymer metal composites using PVDF/PVP/PSSA blend membranes

Panwar

Lee

et al. 2012

Materials Chemistry and Physics

View full text Add to dashboard Cite

Section: Tip Displacement Of Ipmcs Under DC and Ac Voltagesmentioning

confidence: 78%

“…Previous IPMC actuators have shown lower mechanical strengths and lower blocking forces than the Nafion-based actuators [7,9,20e24]. In addition, some actuators have depicted lower actuation than the Nafion-based actuators [9,20]. Therefore, ongoing research has attempted to identify a new ion-exchange membrane for IPMCs.…”

Section: Introductionmentioning

confidence: 98%

Dynamic mechanical, electrical, and actuation properties of ionic polymer metal composites using PVDF/PVP/PSSA blend membranes

Panwar

Lee

et al. 2012

Materials Chemistry and Physics

View full text Add to dashboard Cite

“…CNFs, as well as the multiwalled nanotubes (MWNTs) and the singlewalled nanotubes (SWNTs), are the most common components of the nanocomposites [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Industrial products made of reinforced polymers demand improvement of the mechanical properties to preserve the structural integrity and the electrical conductivity to dissipate static electricity [16].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Carbon Nanofibers with Maghemite via a Modified Sol-Gel Technique

Silva

Salas

Nedev

et al. 2017

Journal of Nanomaterials

View full text Add to dashboard Cite

Carbon nanohybrid material (CNF/ -Fe 2 O 3 ) was obtained via a modified sol-gel technique consisting of two steps: functionalization of carbon nanofibers (CNF) in H 2 SO 4 /HNO 3 followed by synthesis using Fe(NO 3 ) 3 •9H 2 O. As a result, the iron content of the CNF/ -Fe 2 O 3 was increased by more than twice from about 40% to about 87% mass percent, compared to the pristine CNF and oxidized CNF specimens, as proved by energy dispersive X-ray fluorescence. Scanning electron microscopy images exhibited "cumulus" on the CNF/ -Fe 2 O 3 specimen surface, which showed the highest iron mass percentage, proved by energy dispersive X-ray spectroscopy. Transmission electron microscopy images confirmed attachment of -Fe 2 O 3 cumulus to the inner and outer surfaces of the CNF walls after synthesis. The characteristic peaks of Fe 2p 3/2 and Fe 2p 1/2 appeared in the XPS spectra obtained on CNF/ -Fe 2 O 3 . In addition, X-ray diffraction (XRD) results indicated formation of -Fe 2 O 3 during the synthesis process. The Raman spectrum of the CNF/ -Fe 2 O 3 sample displays peaks with positions close to characteristic peaks of highly crystalline and monodisperse maghemite nanocrystallites. The synthesis of CNF/ -Fe 2 O 3 leads to an increase in the hydrophilicity of CNF and magnetic properties at room temperature.

show abstract

“…Therefore, the IPMC actuators are promising candidates for the next generation of smart materials with significant potential for practical applications to biomimetic robots [11], biomedical devices [12] and manipulators [13][14][15]. This also includes fundamental approaches to improve the basic bending performance and to overcome several drawbacks through the synthesis of novel ionic-exchange membranes [16][17][18][19] and the development of nanocomposites [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamics of curved IPMC actuators undergoing electrically driven large deformations

Jeon

2012

International Journal of Smart and Nano Materials

Self Cite

View full text Add to dashboard Cite

The nonlinear dynamics of curved ionic polymer-metal composite (IPMC) actuators having large tip displacement and periodical jumping locomotion was investigated experimentally. Through snap-through phenomena, the actuator generates much larger tip displacement and shows abrupt jumps in the transitions of upswings and downswings with low input energy. Two curved IPMC cantilever actuators having two different constant curvatures of 0.01 mm −1 and 0.02 mm −1 were fabricated through thermal treatment from flat IPMCs, simultaneously with no residual stress. As-fabricated IPMC actuators were tested to evaluate the effect of initial curvature under static and dynamic electrical excitations. Unlike the case of the flat IPMC actuator, asymmetric characteristics in step and harmonic responses were investigated in the curved IPMC actuators. Also, at relatively higher input voltage, snap-through phenomena were observed with much larger transverse displacements and periodical abrupt jumps of the instant speed. This revealed jumping movements between the multiple equilibrium points. The results show that optimum curvatures for better bending performance of curved cantilever IPMCs exist and that this snap-through mechanism could be applied to IPMC actuators by considering their soft and flexible properties and the geometric structures.

show abstract

Enhanced electromechanical performance of carbon nano-fiber reinforced sulfonated poly(styrene-b-[ethylene/butylene]-b-styrene) actuator

Cited by 43 publications

References 9 publications

Dynamic mechanical, electrical, and actuation properties of ionic polymer metal composites using PVDF/PVP/PSSA blend membranes

Dynamic mechanical, electrical, and actuation properties of ionic polymer metal composites using PVDF/PVP/PSSA blend membranes

Synthesis of Carbon Nanofibers with Maghemite via a Modified Sol-Gel Technique

Nonlinear dynamics of curved IPMC actuators undergoing electrically driven large deformations

Contact Info

Product

Resources

About