Formation of new electric double percolation via carbon black induced co-continuous like morphology

Xiu, Hao; Dai, J. G.; Huang, Chuanfeng; Bai, Hongwei; Zhang, Qin; Fu, Qiang

doi:10.1039/c4ra06836j

Cited by 39 publications

(28 citation statements)

References 21 publications

(35 reference statements)

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“…When NR/ENR is 70/30, the electrical conductivity of CCB/NR/ENR composite reaches the optimum value of 0.34 S/m, which is 1.45 and 11.03 times as the conductivity of CCB/NR and CCB/ENR, respectively. Such significant increment in conductivity is attributed to the double percolation phenomenon [28,29]. One hand, the NR/ENR blend forms co-continuous phase structure, which endures the connectedness of NR phase.…”

Section: Electrical Conductivitymentioning

confidence: 98%

Effect of blend ratio on the morphology and electromagnetic properties of nanoparticles incorporated natural rubber blends

Zhao

Luo

et al. 2016

Composites Part B: Engineering

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Section: Electrical Conductivitymentioning

confidence: 98%

Effect of blend ratio on the morphology and electromagnetic properties of nanoparticles incorporated natural rubber blends

Zhao

Luo

et al. 2016

Composites Part B: Engineering

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“…The 58/42 wt % ratio was used for its co‐continuous morphology, which was defined in an earlier study . A co‐continuous structure has demonstrated superior performance in terms of properties when compared to a matrix/dispersed phase morphology . For the ternary systems, all the components (PCL, PLA, and TiO 2 or hBN) were simultaneously added to the extruder feeder.…”

Section: Methodsmentioning

confidence: 99%

“…Among the possible morphologies that can be obtained in an immiscible polymeric mixture, the co‐continuous has raised interest in recent studies, mainly due to the possibility of property synergy and double percolation . Double percolation in immiscible polymer blends offers advantages over single‐phase polymer composites, since it increases the thermal and electrical conductivity of very low nanoparticle mixtures through selective localization of conductive nanoparticles in one phase and, when at the interface, it can reduce the percolation threshold …”

Section: Introductionmentioning

confidence: 99%

Effects of processing conditions on hybrid filler selective localization, rheological, and thermal properties of poly(ε‐caprolactone)/poly(lactic acid) blends

Decol

Pachekoski

Segundo

et al. 2019

J of Applied Polymer Sci

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In this study, the effects of processing conditions through different mixing sequences were used to analyze the factors, which could influence the hybrid filler selective localization in an immiscible polymer blend and how localization can influence the rheological and thermal properties. Different selective localizations were observed depending on the mixing sequence used when the hybrid filler was added. Notably, nanoparticles can interact with each other, which favor a synergy between them and alters, besides the localization, the dispersion state, or can interact with one polymer phase, and also alter the nanoparticles' selective localization. An improvement in rheological properties was observed in the hybrid nanocomposite in which there was interaction between the nanoparticles, favoring the hexagonal boron nitride exfoliation. On the other hand, for the storage modulus and degree of crystallinity, the sharpest increase occurred in the hybrid nanocomposite in which the nanoparticles could interact preferably with one polymer phase. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 137, 48711.

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“…[38][39][40]43,44 In this work, the electrical conductivities for the PU/CNTs composites, 90PU/10PLA/CNTs composites, 80PU/20PLA/CNTs composites and 70PU/30PLA/CNTs composites with various contents of CNTs are systemically investigated and the results are shown in Fig. [38][39][40]43,44 In this work, the electrical conductivities for the PU/CNTs composites, 90PU/10PLA/CNTs composites, 80PU/20PLA/CNTs composites and 70PU/30PLA/CNTs composites with various contents of CNTs are systemically investigated and the results are shown in Fig.…”

Section: Electrical Properties Of Pu/pla/cnts Compositesmentioning

confidence: 99%

Largely reinforced polyurethane via simultaneous incorporation of poly(lactic acid) and multiwalled carbon nanotubes

et al. 2015

Self Cite

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In this study, we simultaneously introduced both poly(lactic acid) (PLA) and multiwalled carbon nanotubes (CNTs) into the polyurethane (PU) matrix via melt blending, to achieve balanced mechanical properties and good conductivity. Different contents of PLA (0-30 wt%) and CNTs (0-3.0 wt%) were used in this work. A significant improvement in tensile strength at 300% strain and Young's modulus were observed, which could not be obtained by incorporating either PLA or CNTs with PU separately. Particularly, the ternary composites containing a large amount of PLA (30 wt%), 70PU/30PLA/CNTs composites, exhibit superior mechanical properties compared to other composites with less PLA content but the same amounts of CNTs. Moreover, the ternary composites showed better electrical conductivity compared with the binary counterpart. SEM observations demonstrated that PLA particles and CNTs are separately dispersed in the PU matrix. It was found that PLA particles remain spherical and their size increases with increasing PLA content up to 30 wt%, while a network structure of CNTs is formed with increasing its content, which was also confirmed via dynamic rheological analysis. Interestingly, some CNTs were seen to be located in the interfaces between PLA particles and the PU matrix for 70PU/30PLA/CNTs composites, namely, some CNTs exhibit a nano-bridge effect between PU and PLA. We hypothesized that the nano-bridge structure of CNTs in the composites could mainly contribute to the observed enhancement of mechanical properties and electrical conductivity.

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Formation of new electric double percolation via carbon black induced co-continuous like morphology

Cited by 39 publications

References 21 publications

Effect of blend ratio on the morphology and electromagnetic properties of nanoparticles incorporated natural rubber blends

Effect of blend ratio on the morphology and electromagnetic properties of nanoparticles incorporated natural rubber blends

Effects of processing conditions on hybrid filler selective localization, rheological, and thermal properties of poly(ε‐caprolactone)/poly(lactic acid) blends

Largely reinforced polyurethane via simultaneous incorporation of poly(lactic acid) and multiwalled carbon nanotubes

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