Study on filler content dependence of the onset of positive temperature coefficient (PTC) effect of electrical resistivity for UHMWPE/LDPE/CF composites based on their DC and AC electrical behaviors

Zhang, Rong; Tang, Ping; Li, Jianfeng; Xu, Duigong; Bin, Yuezhen

doi:10.1016/j.polymer.2014.02.065

Cited by 38 publications

(14 citation statements)

References 45 publications

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“…Various alternatives can be used to increase the surface conductivity of insulating polymers, notably the addition of functional fillers such as conductive carbon black, carbon nanotubes, carbon fibers, and metal oxide fillers, or of an intrinsically conductive polymer with conjugated π bonds such as polyaniline, polyphenylene, polythiophene, and polypyrrole . Another possible alternative is the addition of glassy carbon (GC), which was investigated in the study reported herein.…”

Section: Introductionmentioning

confidence: 99%

A new use for glassy carbon: Development of LDPE/glassy carbon composites for antistatic packaging applications

Santos

Montagna

Rezende

et al. 2018

J of Applied Polymer Sci

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Antistatic packaging is used for the protection and storage of electronic boards and sensitive electronic components. Different polyolefins can be used for the production of antistatic packaging; however, the accumulation of static electricity in these polyolefins may cause serious damage to the electronic components. In this study, since glassy carbon (GC) has good mechanical properties and electrical characteristics, it was used as an antistatic filler and blended with low‐density polyethylene (LDPE). Composites of LDPE with GC in different proportions were prepared in the molten state using a homogenizer rotating at 3000 rpm. The composites were characterized in terms of thermal, mechanical, structural, and electrical properties. The GC is well dispersed and distributed in the LDPE, which contributed to the formation of a percolated network that enhanced antistatic characteristic. An increase of two orders of magnitudes in the electrical conductivity was obtained for the composite with 0.5 wt % of GC and thus it can be used as antistatic packaging. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47204.

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Section: Introductionmentioning

confidence: 99%

A new use for glassy carbon: Development of LDPE/glassy carbon composites for antistatic packaging applications

Santos

Montagna

Rezende

et al. 2018

J of Applied Polymer Sci

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“…To overcome these defects, many efforts have made to improve the PTC performances of the composites . According to the reports, the great progress in the improvement of PTC materials was commonly made by regulating the polymer matrix or conductive fillers …”

Section: Introductionmentioning

confidence: 99%

Positive temperature coefficient effect and mechanism of compatible LLDPE/HDPE composites doping conductive graphite powders

Zhang

Wang

2018

J of Applied Polymer Sci

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Linear low density polyethylene (LLDPE)/high density polyethylene (HDPE) blends doped conductive graphite powders were constructed by the traditional melt‐blending method to acquire the conductive compatible polymer composites, and corresponding positive temperature coefficient (PTC) effect of electrical resistivity was investigated. The results indicated that the room‐temperature resistivity gradually decreased and PTC effects were remarkably enhanced by regulating the graphite contents or LLDPE/HDPE ratios. Especially, with increasing graphite contents, the polymer‐fixed composites showed the notable double PTC effects, originating from the volume expansion of the co‐crystallization or their fraction. Whereas, with increasing the LLDPE/HDPE ratio, the PTC effects of the graphite‐fixed composites occurred at the lower temperature, even far below the melting points of the co‐crystallization. Therefore, the regulation of co‐crystallization morphology of compatible polymer matrices was a new idea in the improvement of PTC materials. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46453.

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“…In addition, the PTC effect occurred at different temperatures for different filler contents and increased with the CF content. The PTC temperatures were approximately 125~140 ˚C for the composites with CF contents of 7.5~25 wt% due to the correlation length in the conductive network and the average distance between CFs varied with temperature and filler content, which resulted in the different onsets of the PTC effect [3] .…”

Section: Temperature Dependence Of the Electrical Resistivitymentioning

confidence: 99%

“…Conductive polymer composites (CPCs) are one of the most important and interesting areas in polymer composite research due to their ease of processing, tunable properties and wide range of applications [1][2][3][4][5][6][7]. Self-heating or electrical heating materials are also one of many applications for CPCs [8][9][10][11][12][13][14][15], which are a type of electrical resistor that easily and quantitatively converts electrical energy to thermal energy via Ohmic joule heating [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of γ-ray irradiation on the microstructure and self-heating property of carbon fiber/polyethylene composite films

Tang

Zhang

Chen

et al. 2015

Composites Part A: Applied Science and Manufacturing

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Study on filler content dependence of the onset of positive temperature coefficient (PTC) effect of electrical resistivity for UHMWPE/LDPE/CF composites based on their DC and AC electrical behaviors

Cited by 38 publications

References 45 publications

A new use for glassy carbon: Development of LDPE/glassy carbon composites for antistatic packaging applications

A new use for glassy carbon: Development of LDPE/glassy carbon composites for antistatic packaging applications

Positive temperature coefficient effect and mechanism of compatible LLDPE/HDPE composites doping conductive graphite powders

Effect of γ-ray irradiation on the microstructure and self-heating property of carbon fiber/polyethylene composite films

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