Electrically conductive and super-tough polypropylene/carbon nanotube nanocomposites prepared by melt compounding

Ma, Yuling; Wu, Daming; Liu, Ying; Li, Xiaofeng; Qiao, Hui; Yu, Zhong‐Zhen

doi:10.1016/j.compositesb.2013.08.026

Cited by 57 publications

(33 citation statements)

References 42 publications

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“…CNT exceptional electrical, mechanical, and thermal properties have been exploited in many studies to improve these properties in other materials. It has been observed that various polymers [10][11][12][13][14][15][16][17][18][19][20][21][22], ceramics [23,24], and epoxies [25][26][27][28][29][30][31][32] see enhancements in these properties when blended with CNTs to form composites. [32][33][34][35][36][37][38][39][40] The focus of this work is electronic transport in nanocomposites.…”

Section: Introductionmentioning

confidence: 99%

A stochastic approach towards a predictive model on charge transport properties in carbon nanotube composites

Tarlton

Brown

Beach

et al. 2016

Composites Part B: Engineering

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Section: Introductionmentioning

confidence: 99%

A stochastic approach towards a predictive model on charge transport properties in carbon nanotube composites

Tarlton

Brown

Beach

et al. 2016

Composites Part B: Engineering

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“…Therefore, issues concerned with the simultaneous reinforcing and toughening of PP have attracted considerable attention. The incorporation of both rigid reinforcement and elastomeric phases into PP leads to the formation of ternary or hybrid composites, which have attracted much attention due to their potentiality in achieving both high stiffness and high toughness [6,[8][9][10][11][12][13][14][15]. In these heterogeneous systems, the macroscopic performance of the material is strongly dependent on the microstructure which, in turn, is controlled by the concentration of components, mutual interaction between the components and the processing conditions as well [6, 10-12, 16, 17].…”

Section: Introductionmentioning

confidence: 99%

Isotactic polypropylene (PP) modified by ABS and CaCO3 nanoparticles: effect of composition and compatibilization on the phase morphology, mechanical properties and fracture behavior

2015

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Attempt was made to improve the properties of isotactic polypropylene (iPP) by simultaneous incorporation of ABS and CaCO 3 nanoparticles. The goal was to achieve a balanced toughness and stiffness by the development of ternary PP/ ABS/CaCO 3 nanocomposite. The effects of compatibilization and composition on the phase morphology, mechanical properties and deformation behavior under impact loadings were systematically studied. The phase structure and mechanical properties of binary PP/ABS and PP/CaCO 3 systems was also investigated in detail to clarify the contribution of individual ABS and CaCO 3 components in the macroscopic response of ternary hybrid. It was found that the ABS could effectively toughen the PP matrix by the suitable compatibilization. Moreover, the CaCO 3 nanoparticles alone serve as stiffener and toughener in the material. Accordingly, the impact toughness of ternary PP/ABS/CaCO 3 nanocomposites was larger than those of compatibilized PP/ABS blend and PP/CaCO 3 system and, therefore, much higher than that of unmodified iPP. The mechanical properties and toughening mechanisms of different binary and ternary samples were rationalized by fractographic analysis. In the case of Izod impact-fractured samples, the characteristics of fractured surfaces were closely examined at the crack initiation and propagation stages of the impact fracture process.

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13] The theory and practice have shown that constructing a continuous and compact network of conductive llers in a polymeric matrix is essential to prepare composites with high conductivity. [14][15][16][17][18][19][20] It is a conventional method to construct such a network mainly by increasing the amount of conductive llers until percolation appears. [14][15][16][21][22][23][24] As most polymers have very low electrical conductivity, the electrically conductive llers are incorporated into polymers to fabricate CPCs.…”

Section: Introductionmentioning

confidence: 99%

“…[14][15][16][17][18][19][20] It is a conventional method to construct such a network mainly by increasing the amount of conductive llers until percolation appears. [14][15][16][21][22][23][24] As most polymers have very low electrical conductivity, the electrically conductive llers are incorporated into polymers to fabricate CPCs. Many efforts have been focused on how to build conductive networks in polymer matrixes using electrically conductive llers with high aspect ratio, including carbon black particles, carbon ber, graphite ake, carbon nanotubes (CNTs) and graphene.…”

Section: Introductionmentioning

confidence: 99%

“…Many efforts have been focused on how to build conductive networks in polymer matrixes using electrically conductive llers with high aspect ratio, including carbon black particles, carbon ber, graphite ake, carbon nanotubes (CNTs) and graphene. 14,15,17,[25][26][27][28][29][30][31][32][33] Generally, there are mainly three approaches to obtain a continual conductive network. A widely adopted processing technology is to increase the fraction of the conductive llers to a certain value until the percolation threshold appears.…”

Section: Introductionmentioning

confidence: 99%

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Improved electrical conductivity of PDMS/SCF composite sheets with bolting cloth prepared by a spatial confining forced network assembly method

et al. 2017

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A novel method of Spatial Confining Forced Network Assembly (SCFNA) for preparation of high-performance electrically conductive polymeric composites was proposed in this paper. Differing from the self-assembly mechanism, as in traditional compounding processes, the SCFNA process could provide conductive fillers with an effective forced networking assembly action to get a more compacted network. High electroconductive polydimethylsiloxane (PDMS)/short carbon fiber (SCF) binary composites with a low percolation threshold of 0.15 wt% were prepared by the SCFNA method. A rapid increase in electrical conductivity from 1.71 Â 10 À12 S m À1 of PDMS to 1.67 Â 10 2 S m À1 was achieved with 4 wt% short carbon fibers. It was shown that a continuous and compact SCF network was built in a PDMS matrix. Furthermore, when the bolting cloth as a sarking was co-compressed with the mixture, a much lower percolation threshold of 0.06 wt% and a higher electrical conductivity of 3.22 Â 10 2 S m À1 with 4 wt% of SCF were obtained due to volume exclusion. Compared with the conventional compounding method, the electro-conductive properties of the composites prepared by the above mentioned method can be enhanced up to several times, or even by orders of magnitudes. Moreover, if the mesh number of the bolting cloth is large enough, the carbon fibers will be impeded from penetrating the bolting cloth together with the polymer when they are co-compressed, thus an electrically conductive film with single or double insulating face could be prepared through this method.

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Electrically conductive and super-tough polypropylene/carbon nanotube nanocomposites prepared by melt compounding

Cited by 57 publications

References 42 publications

A stochastic approach towards a predictive model on charge transport properties in carbon nanotube composites

A stochastic approach towards a predictive model on charge transport properties in carbon nanotube composites

Isotactic polypropylene (PP) modified by ABS and CaCO3 nanoparticles: effect of composition and compatibilization on the phase morphology, mechanical properties and fracture behavior

Improved electrical conductivity of PDMS/SCF composite sheets with bolting cloth prepared by a spatial confining forced network assembly method

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