Electroactive behavior of graphene nanoplatelets loaded cellulose composite actuators

Salmani, Ibrahim; Seki, Yoldaş; Sarıkanat, Mehmet; Çetín, Levent; Gürses, Barış Oğuz; Özdemir, Okan; Yılmaz, Özgün Cem; Sever, Kutlay; Akar, Emine; Mermer, Ömer

doi:10.1016/j.compositesb.2014.10.016

Cited by 42 publications

(19 citation statements)

References 39 publications

(55 reference statements)

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“…Apparently, because of the porosity, the unpressed papers are able to reorient to a higher degree than their hot-pressed counterparts and hence show greater elongation. S/cm) which is much higher than the cellulose/graphene or cellulose/CNT composite papers reported elsewhere [25,28,39].…”

Section: Mechanical Properties Of Gnp/cnc Hybrid Papersmentioning

confidence: 51%

“…Chun et al [27] utilized cellulose powders as the starting material and fabricated cellulose nanofiber paper with a vacuum filtration method, the tensile modulus and strength of the prepared cellulose paper can be as high as 6.4 GPa and 55 MPa respectively. Sen et al [28] fabricated 0.1-0.5 wt% graphene nanoplatelets-cellulose composite films by a solution casting method. The 0.25 wt% graphene nanoplatelets/cellulose composite film produced 0.8 GPa in tensile modulus and 22.6 MPa in strength, an increase of 45% and 31% respectively.…”

Section: Introductionmentioning

confidence: 99%

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Multifunctional graphene nanoplatelets/cellulose nanocrystals composite paper

Wang

Drzal

Qin

et al. 2015

Composites Part B: Engineering

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We demonstrate a water-based method to fabricate strong, electrically and thermally conductive hybrid thin films (papers) made from the combination of graphene nanoplatelets (GnP) and cellulose nanocrystals (CNC). Unpressed and hot-pressed GnP papers containing CNC ranging from 0 wt% to 25 wt% were prepared. It is found that the GnP is well aligned within the hybrid paper, and a higher degree of alignment is induced by the hot-pressing process. The mechanical properties of the resulting papers increased with increasing content of CNC. The hot-pressed 25 wt% CNC hybrid paper showed the best mechanical properties among all the papers studied and improved the tensile strength by 33% and the modulus by 57% compared to neat GnP paper. Both the highest in-plane and though-plane thermal conductivity

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Section: Mechanical Properties Of Gnp/cnc Hybrid Papersmentioning

confidence: 51%

Section: Introductionmentioning

confidence: 99%

Multifunctional graphene nanoplatelets/cellulose nanocrystals composite paper

Wang

Drzal

Qin

et al. 2015

Composites Part B: Engineering

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“…This indicated that the fibers with lateral orientation were evenly distributed in the transverse direction. Piezoelectricity can be produced due to the single orientation alignment of the cellulose macromolecular crystals [3]. It was generally believed that the piezoelectric properties of cellulose itself and the internal ion migration process were the reasons for the electroactive behavior of cellulose materials [18].…”

Section: Sem Analysismentioning

confidence: 99%

“…As one type of smart materials, the electroactive polymer (EAP) can generate deformation and deflection displacement under an electric field, or generate a response charge under stress [1]. These properties widen the potential application of EAP materials in actuators [2][3][4], Micro Electro Mechanical Systems devices [5,6], and biomimetic robots [7][8][9]. According to its actuation mechanism, electroactive polymer can be divided into two categories, i.e., ionic EAP materials related to ion migration and diffusion mechanism, and electronic EAP materials related to electric field driven and Coulomb force, respectively [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Study on the Preparation of Ionic Liquid Doped Chitosan/Cellulose-Based Electroactive Composites

Wang

Xie

Qian

et al. 2019

IJMS

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Electro-actuated polymer (EAP) can change its shape or volume under the action of an external electric field and shows similar behavioral characteristics with those of biological muscles, and so it has good application prospects in aerospace, bionic robots, and other fields. The properties of cellulose-based electroactive materials are similar to ionic EAP materials, although they have higher Young’s modulus and lower energy consumption. However, cellulose-based electroactive materials have a more obvious deficiency—their actuation performance is often more significantly affected by ambient humidity due to the hygroscopicity caused by the strong hydrophilic structure of cellulose itself. Compared with cellulose, chitosan has good film-forming and water retention properties, and its compatibility with cellulose is very excellent. In this study, a chitosan/cellulose composite film doped with ionic liquid, 1-ethyl-3-methylimidazolium acetate ([EMIM]Ac), was prepared by co-dissolution and regeneration process using [EMIM]Ac as the solvent. After that, a conductive polymer, poly(3,4-ethylenedioxythiophene)/poly (styrene sulfonate) (PEDOT: PSS), was deposited on the surface of the resulted composite, and then a kind of cellulose-based electroactive composites were obtained. The results showed that the end bending deformation amplitude of the resulted material was increased by 2.3 times higher than that of the pure cellulose film under the same conditions, and the maximum deformation amplitude reached 7.3 mm. The tensile strength of the chitosan/cellulose composite film was 53.68% higher than that of the cellulose film, and the Young’s modulus was increased by 72.52%. Furthermore, in comparison with the pure cellulose film, the water retention of the composite film increased and the water absorption rate decreased obviously, which meant that the resistance of the material to changes in environmental humidity was greatly improved.

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“…As a result of this, graphene was also used to developed wearable poly(pyrrole)-based fibers employed for the production of net actuators [96]. Sen et al [97] reported the actuation of cellulose using graphene nanoplatelets (0.1-0.5 wt %) under DC excitation voltages of 3-7 V, reaching a strain of up to 1%. Titanium-doped graphene was used to induce actuation into an elastomeric matrix with a strain of up to 72% using 39 V/µm [98].…”

Section: Graphene and Graphene Oxide Actuatorsmentioning

confidence: 99%

Carbon Nanostructures for Actuators: An Overview of Recent Developments

Giorcelli

Bartoli

2019

Actuators

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In recent decades, micro and nanoscale technologies have become cutting-edge frontiers in material science and device developments. This worldwide trend has induced further improvements in actuator production with enhanced performance. A main role has been played by nanostructured carbon-based materials, i.e., carbon nanotubes and graphene, due to their intrinsic properties and easy functionalization. Moreover, the nanoscale decoration of these materials has led to the design of doped and decorated carbon-based devices effectively used as actuators incorporating metals and metal-based structures. This review provides an overview and discussion of the overall process for producing AC actuators using nanostructured, doped, and decorated carbon materials. It highlights the differences and common aspects that make carbon materials one of the most promising resources in the field of actuators.

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Electroactive behavior of graphene nanoplatelets loaded cellulose composite actuators

Cited by 42 publications

References 39 publications

Multifunctional graphene nanoplatelets/cellulose nanocrystals composite paper

Multifunctional graphene nanoplatelets/cellulose nanocrystals composite paper

Study on the Preparation of Ionic Liquid Doped Chitosan/Cellulose-Based Electroactive Composites

Carbon Nanostructures for Actuators: An Overview of Recent Developments

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