Advances in Responsively Conductive Polymer Composites and Sensing Applications

Chen, Jianwen; Zhu, Yutian; Huang, Jinrui; Zhang, Jiaoxia; Pan, Duo; Zhou, Juying; Ryu, Jihye; Umar, Ahmad; Guo, Zhanhu

doi:10.1080/15583724.2020.1734818

Cited by 134 publications

(65 citation statements)

References 240 publications

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“…Ionogels are IL-based composites that typically consist of ILs and solid 3D networks. [38][39][40][41][42] Ionogels present the structure of solid-state networks, [43][44][45] in the meantime, they retains salient features of ILs including ionic conductivity, [46][47][48] thermal stability, [49] and wide electrochemical windows. [50] Although the conductivity of ionogels is not as well as that of hydrogels in most instances, due to the high thermal stability of ILs, there are broader application scenarios for ionogels including supercapacitors and lithium batteries at high-temperatures, wearable electronics below 0°C, as well as sensors under extreme conditions (such as vacuum).…”

Section: Introductionmentioning

confidence: 99%

Overview of Ionogels in Flexible Electronics

Zhang

Jiang

Dong

et al. 2020

The Chemical Record

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Ionogels have aroused wide interests in the field of flexible electronics. The combination of solid‐state networks and ionic liquids opens up thousands of possibilities for ionogels. The unique structures of ionogels endow them excellent mechanical properties, conductivity and thermal stability to approach the challenge of flexible electronic. A large number of new ionogels have been developed by different methods including the exchange of solution, polymeric ionic liquid and in‐situ reactions in ionic liquids (gelation of low molecular weight gelators, self‐assembly of block polymers, formation of double‐network structure, ionogel nanocomposites and direct polymerization of polymerizable monomers). The aim of this review is to discuss different preparation methods of ionogels and the comparison of their advantages.

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Section: Introductionmentioning

confidence: 99%

Overview of Ionogels in Flexible Electronics

Zhang

Jiang

Dong

et al. 2020

The Chemical Record

Self Cite

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“…Interestingly, the electrical conductivity is improved by several magnitudes over time in the quiescent conditions, which is attributed to the NPs reaggregation [14]. By utilizing the change of the percolation networks under the strain/stress or pressure condition, the environment conditions can be monitored [15]. However, the percolated network is difficult to characterize accurately in experimental studies.…”

Section: Introductionmentioning

confidence: 99%

Percolated Network of Mixed Nanoparticles with Different Sizes in Polymer Nanocomposites: A Coarse-Grained Molecular Dynamics Simulation

Zhao

Nie

et al. 2021

Materials

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The size of real nanoparticles (NPs) is polydisperse which can influence the electrical property of polymer nanocomposites (PNCs). Here, we explored the percolated network of mixed NPs with different sizes (small NPs and big NPs) by adopting a molecular dynamics simulation. The simulated results reveal that the big NPs are adverse to building the percolated network compared to the small NPs. Thus, the percolation threshold becomes higher along with increasing the mixing ratio, which denotes the concentration ratio of big NPs to the total NPs. For a better understanding of it, the dispersion state and the number and the size of clusters are employed to analyze the percolated network, which can explain the percolation threshold well. Furthermore, by adopting the Sun’s theory (Macromolecules, 2009, 42, 459–463), small and big NPs exhibit a weak antagonistic effect in the simulation if their total concentration is fixed. On the one hand, the number of small NPs is larger than that of big NPs at the same concentration. In addition, one big NP can connect to more others than one small NP. These two contrast effects are responsible for it. Interestingly, the shear flow leads to more contact aggregation structure of NPs which is beneficial to build the new percolated networks. Especially, the big NPs play a more important role in forming the percolated network than small NPs. Consequently, the percolation threshold is reduced at a higher shear rate. In total, our research work provides a further understanding of how the mixed NPs with different sizes form the percolated network in polymer matrix.

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“…CPC has attracted the attention of researchers, both from academia and industries, the world over, as it offers a wide range of applications. However, there are challenges to using CPC, which include poor oxidation and electro-active stability, along with poor mechanical properties [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

The Role of Zinc Chloride in Enhancing Mechanical, Thermal and Electrical Performance of Ethylene Vinyl Acetate/Carbonized Wood Fiber Conductive Composite

et al. 2021

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Carbonized natural filler can offer the production of low cost composites with an eco-friendliness value. The evolving field of electronics encourages the exploration of more functions and potential for carbonized natural filler, such as by modifying its surface chemistry. In this work, we have performed surface modification on carbonized wood fiber (CWF) prior to it being used as filler in the ethylene vinyl acetate (EVA) composite system. Zinc chloride (ZnCl2) with various contents (2 to 8 wt%) was used to surface modify the CWF and the effects of ZnCl2 composition on the surface morphology and chemistry of the CWF filler were investigated. Furthermore, the absorptive, mechanical, thermal, and electrical properties of the EVA composites containing CWF-ZnCl2 were also analyzed. SEM images indicated changes in the morphology of the CWF while FTIR analysis proved the presence of ZnCl2 functional groups in the CWF. EVA composites incorporating the CWF-ZnCl2 showed superior mechanical, thermal and electrical properties compared to the ones containing the CWF. The optimum content of ZnCl2 was found to be 6 wt%. Surface modification raised the electrical conductivity of the EVA/CWF composite through the development of conductive deposits in the porous structure of the CWF as a channel for ionic and electronic transfer between the CWF and EVA matrix.

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Advances in Responsively Conductive Polymer Composites and Sensing Applications

Cited by 134 publications

References 240 publications

Overview of Ionogels in Flexible Electronics

Overview of Ionogels in Flexible Electronics

Percolated Network of Mixed Nanoparticles with Different Sizes in Polymer Nanocomposites: A Coarse-Grained Molecular Dynamics Simulation

The Role of Zinc Chloride in Enhancing Mechanical, Thermal and Electrical Performance of Ethylene Vinyl Acetate/Carbonized Wood Fiber Conductive Composite

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