Enhanced electrical and thermal properties of semi-conductive PANI-CNCs with surface modified CNCs

Chen, Po-Yun; Hsu, Chieh Yun; Venkatesan, Manikandan; Tseng, Yen-Lin; Cho, Chia‐Jung; Han, Su‐Ting; Zhou, Ye; Chiang, Wei‐Hung; Kuo, Chi‐Ching

doi:10.1039/d0ra10663a

Cited by 7 publications

(3 citation statements)

References 65 publications

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“…During the stress-strain testing, the samples appeared to be noticeably elongated before breaking. The samples were mostly distinguished by their high elasticity and ductility in comparison with PANI, which is known to be a brittle material [24,25].…”

Section: Discussionmentioning

confidence: 99%

Highly Flexible Polyaniline-Based Implantable Electrode Materials for Neural Sensing/Stimulation Applications

Almufleh

Al‐Othman

Alani

et al. 2021

Electronic Materials

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Implantable bioelectrodes have the potential to advance neural sensing and muscle stimulation, mainly in patients with peripheral nerve injuries. They function as the transducer at the interface between the damaged nerve and the muscle which is controlled by that nerve. This work reports the fabrication and characterization of novel, low-cost, flexible bioelectrodes based on polyaniline (PANI) and supported with silicone polymer. The fabricated electrodes were evaluated for their electrical and mechanical characteristics. PANI was used as the main transducer component in this fabrication. The characterization methods included electrical conductivity, capacitive behavior, long-term electrical impedance, and mechanical evaluation. The results of the fabricated PANI-silicone-based samples displayed a bulk impedance of 0.6 kΩ with an impedance of 1.6 kΩ at the frequency of 1 kHz. Furthermore, the bioelectrodes showed a charge storage capacity range from 0.0730 to 4.3124 C/cm2. The samples were stable when subjected to cyclic voltammetry tests. The bioelectrodes revealed very flexible mechanical properties as observed from the value of Young’s modulus (in the order of MPa) which was less than that of skin. Hence, the PANI-based bioelectrodes reported herein showed promising electrochemical characteristics with high flexibility.

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Section: Discussionmentioning

confidence: 99%

Highly Flexible Polyaniline-Based Implantable Electrode Materials for Neural Sensing/Stimulation Applications

Almufleh

Al‐Othman

Alani

et al. 2021

Electronic Materials

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“…A viable strategy is to develop bio-based polymer materials as alternatives to these materials to minimize the use of non-biodegradable polymers [ 11 , 12 , 13 , 14 , 15 ]. Considering these, the key to biodegradable polymer-based foams can be used in a wide range of applications, owing to their biocompatibility [ 16 , 17 ], biodegradability, and renewability process [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Thermoplastic Starch with Poly(butylene adipate-co-terephthalate) Blends Foamed by Supercritical Carbon Dioxide

et al. 2022

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Starch-based biodegradable foams with a high starch content are developed using industrial starch as the base material and supercritical CO2 as blowing or foaming agents. The superior cushioning properties of these foams can lead to competitiveness in the market. Despite this, a weak melting strength property of starch is not sufficient to hold the foaming agents within it. Due to the rapid diffusion of foaming gas into the environment, it is difficult for starch to maintain pore structure in starch foams. Therefore, producing starch foam by using supercritical CO2 foaming gas faces severe challenges. To overcome this, we have synthesized thermoplastic starch (TPS) by dispersing starch into water or glycerin. Consecutively, the TPS surface was modified by compatibilizer silane A (SA) to improve the dispersion with poly(butylene adipate-co-terephthalate) (PBAT) to become (TPS with SA)/PBAT composite foam. Furthermore, the foam-forming process was optimized by varying the ratios of TPS and PBAT under different forming temperatures of 85 °C to 105 °C, and two different pressures, 17 Mpa and 23 Mpa were studied in detail. The obtained results indicate that the SA surface modification on TPS can influence the great compatibility with PBAT blended foams (foam density: 0.16 g/cm3); whereas unmodified TPS and PBAT (foam density: 0.349 g/cm3) exhibit high foam density, rigid foam structure, and poor tensile properties. In addition, we have found that the 80% TPS/20% PBAT foam can be achieved with good flexible properties. Because of this flexibility, lightweight and environment-friendly nature, we have the opportunity to resolve the strong demands from the packing market.

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“…14,15 PANI, on the other hand, has disadvantages related to its poor solubility in solutions, which limiting its possible applications in the industrial sector. 16,17 Many studies have been conducted in order to overcome PANI's solubility in water and degradation rate by using polyvinyl alcohol (PVA) to create a stable PANI dispersion. 18 PVA, in instance, has high mechanical strength and chemical endurance, making it a popular choice to be used as additive.…”

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confidence: 99%

Structural Characterization and Dielectric Properties of Flexible PVA/PANI/Ag Nanocomposite Materials

Alyousef

Atta

Abdeltwab

et al. 2023

ECS J. Solid State Sci. Technol.

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PVA/PANI/Ag composite materials made of silver (Ag), polyaniline (PANI), and polyvinyl alcohol (PVA) are prepared for applied in electrical devices. The structure of PVA/PANI/Ag composites was analyzed using XRD, which indicating the samples were successfully synthesized. The crystallite size of AgNPs changed from 12.1 nm to 16 nm by increasing the Ag content from 3 to 6% in the PVA/PANI blend. Moreover, in temperature range 293-353 K, the impacts of PANI as well as AgNPs on the conductivities, permittivity, as well as energy density of PVA were investigated. The conductivity of the films was enhanced with higher frequency due to charge carrier mobility. Furthermore, the density is increased from 1.96x10-6 J/m3 at 20 oC for PVA to 2.7x10-6 for PVA/PANI/Ag. These results show the prepared PVA/PANI/AgNPs can applied in in a wide range of electronic technologies like batteries, electronic circuits, as well as super capacitors

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Enhanced electrical and thermal properties of semi-conductive PANI-CNCs with surface modified CNCs

Abstract: Biodegradable surface-modified CNCs were synthesized found high dispersibility and flexibility. Polyaniline-doped CNCs nanocomposites were exhibited high conductivity and thermal stability that may be promising for flexible semiconductors.

Cited by 7 publications

References 65 publications

Highly Flexible Polyaniline-Based Implantable Electrode Materials for Neural Sensing/Stimulation Applications

Highly Flexible Polyaniline-Based Implantable Electrode Materials for Neural Sensing/Stimulation Applications

Thermoplastic Starch with Poly(butylene adipate-co-terephthalate) Blends Foamed by Supercritical Carbon Dioxide

Structural Characterization and Dielectric Properties of Flexible PVA/PANI/Ag Nanocomposite Materials

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