High thermal conductivity and low electrical conductivity tailored in carbon nanotube (carbon black)/polypropylene (alumina) composites

Xu, Ruijie; Chen, Minyi; Zhang, Feng; Xiaorui, Huang; Luo, Xiaogang; Lei, Caihong; Lu, Shiping; Zhang, Xiaoqing

doi:10.1016/j.compscitech.2016.07.031

Cited by 34 publications

(12 citation statements)

References 29 publications

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“…In contrast, the thermal conductivity requires phonon transport between neighboring thermal conductive fillers. Thus, the trends in the development of electrical properties and thermal conductivity with filler content are very different for polymer composites [9,10,11,12,13,14,15,16,17,18,19,20,21].…”

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity and Electrical Resistivity of Melt-Mixed Polypropylene Composites Containing Mixtures of Carbon-Based Fillers

2019

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Melt-mixed composites based on polypropylene (PP) with various carbon-based fillers were investigated with regard to their thermal conductivity and electrical resistivity. The composites were filled with up to three fillers by selecting combinations of graphite nanoplatelets (GNP), carbon fibers (CF), carbon nanotubes (CNT), carbon black (CB), and graphite (G) at a constant filler content of 7.5 vol%. The thermal conductivity of PP (0.26 W/(m·K)) improved most using graphite nanoplatelets, whereas electrical resistivity was the lowest when using multiwalled CNT. Synergistic effects could be observed for different filler combinations. The PP composite, which contains a mixture of GNP, CNT, and highly structured CB, simultaneously had high thermal conductivity (0.5 W/(m·K)) and the lowest electrical volume resistivity (4 Ohm·cm).

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Section: Introductionmentioning

confidence: 99%

Thermal Conductivity and Electrical Resistivity of Melt-Mixed Polypropylene Composites Containing Mixtures of Carbon-Based Fillers

2019

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“…After that, the grafted CNTs were hydrolysed in ethanol. Finally, the hydrolysed CNTs and DCC (ratio 3:1:1) were reacted in THF at 60°C for 2 h. Finally, the obtained filler was dried in a vacuum oven at 90°C for 6 h [20].…”

Section: Methodsmentioning

confidence: 99%

Electrical and thermal properties of surface passivated carbon nanotube/polyvinylidene fluoride composites

Ouyang

Deng

et al. 2018

IET Nanodielectrics

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The composites reported here were prepared through a melt-rolling mixing process, in which surface passivated multi-wall carbon nanotube and poly(vinylidene fluoride) were used as the filler and the matrix, respectively. X-ray diffraction, precision inductance-capacitance-resistance, and laser flash thermal-diffusivity analyses were employed to characterise the structural, electrical and thermal properties. Results indicate that through the surface passivation of carbon nanotubes, the electrical resistivities of the composites were greatly enhanced, while the thermal conductivities do not change significantly. The electrical properties were discussed in comparison with the Maxwell-Wagner polarisation, universal law, and Gerhardt's method.

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“… PP- Al 2 O 3 + CNT-carbon black 15 wt. 0.68 ~340 Melt blending 2016 [ 167 ] 9. PE CNT/Graphene 0.5 Gra-4.5 CNT vol.…”

Section: Thermal Conductivity Of Polyolefin Compositesmentioning

confidence: 99%

Thermally enhanced polyolefin composites: fundamentals, progress, challenges, and prospects

Chaudhry

Mabrouk

Abdala

2020

Science and Technology of Advanced Materials

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The low thermal conductivity of polymers is a barrier to their use in applications requiring high thermal conductivity such as electronic packaging, heat exchangers, and thermal management devices. Polyolefins represent about 55 percent of global thermoplastic production, and therefore improving their thermal conductivity is essential for many applications. This review analyzes the advances in enhancing the thermal conductivity of polyolefin composites. First, the mechanisms of thermal transport in polyolefin composites and the key parameters that govern conductive heat transfer through the interface between the matrix and the filler are discussed. Then the advantage with different thermally conductive fillers are reviewed and analyzed. Finally, the key challenges and future directions for developing thermally enhanced polyolefin composites are outlined.

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High thermal conductivity and low electrical conductivity tailored in carbon nanotube (carbon black)/polypropylene (alumina) composites

Cited by 34 publications

References 29 publications

Thermal Conductivity and Electrical Resistivity of Melt-Mixed Polypropylene Composites Containing Mixtures of Carbon-Based Fillers

Thermal Conductivity and Electrical Resistivity of Melt-Mixed Polypropylene Composites Containing Mixtures of Carbon-Based Fillers

Electrical and thermal properties of surface passivated carbon nanotube/polyvinylidene fluoride composites

Thermally enhanced polyolefin composites: fundamentals, progress, challenges, and prospects

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