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The effect of carbon black content increase in polyethylene based composites and the product characteristic

Niloofar Nekoonam 1, 2, Naser Mohammadi*1, 2, SadeghKazemidoust1, 2, Kaveh Farzadkia2,3

1.Advanced Research Center for Nano and Smart Polymers, Department of Polymer Engineering and Color Technology, Amirkabir University of Technology, P. O. Box 15875-4413, Tehran, Iran

2. Loghman Fundamental/Technological Research Group, AmirkabirUniversity of Technology, P. O. Box 15875-4413, Tehran, Iran

3. Kavosh Polymer Alborz Co.

Paper Code: (imbpa15-00050039)

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Table of Content:

Objectives

Introduction

Experimental

Analysis

Conclusions

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Easier dilution of carbon black composites

Application of carbon black composites in

electrical applications

Finding possible correlations among measured

physical properties such as turbidity and electrical

conductivity

Objectives

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4

Introduction

D. Ren, et al., J. Appl. Polymer. Sci., 131 (2014) 39953

Filler-Filler and Polymer-Filler Interactions

Electrical and Rheological Network Formation

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Introduction

P. Sae-Oui, et al., Advances in Polymer Technology, 33 (2014) 214225

SEM micrographs of (A) N330, (B) XE2-B, and (C) U-CNT.

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Introduction

T. Koga , et al., Macromolecules, 41 (2008) 453-464.

USANS,USAXS Measurements:

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Introduction

T. Koga , et al., Macromolecules, 41 (2008) 453-464.

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Introduction

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CB Structure CB content CB aspect ratio

Physical properties of the Polymer (Viscosity, Characteristic ratio)

Chemical properties of the polymer (Interaction between the polymer and CB)

Effective parameters on CB network formation

in polymer

Polyethylene based carbon black composites dilution

How it can affect turbidity, electrical resistivity and rheology. Relationship between different physical

properties changes

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Materials

Composites with different carbon black content were prepared:

0.25%, 0.5% and 0.75%wt CB content: The appropriate amounts of PE was added to 1wt% CB containing master batch in an internal mixer (Brabender, PL2200) at 190°C and 60 rpm and blended for 10 min.

1% to 7% CB content: received from by Kavosh Polymer Alborz Co

Film preparation

All the composites were hot pressed to thin films (120±50 μ) at 190 °C for 90 seconds under 40 atmosphere pressure for turbiditycharacterization.

They were hot pressed at 190°C under 30 atmosphere pressure to thicker films (1 mm) for measuring their electrical conductivity.

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Experimental

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Analysis

MFI:

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Analysis

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Analysis

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Analysis

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CARBON

BLACK

NETWORK

FORMATION

AND

THICKENING

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Conclusion

Electrical conductivity, turbidity and rheology of carbon black loaded PE composites depend on its dispersion morphology.

CB network facilitates PE chains movements.

CB network enhances the composite turbidity monotonically.

CB network magnifies the composite electrical conductivity followed by its saturation.

Dispersion morphology initiated by forming a fine network followed by its coarsening.

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References

• Ren D., Zheng S., Wu F., yang W., Liu Z., Yang M., Appl. Polym. Sci. J.,

131, 39953, 2014.

• Lu S., Chung D.D.L., Carbon J., 60, 346-355, 2013.

• Koga T., Hashimoto T., Takenaka M., Aizawa K., Amino N., Nakamura M.,

Yamaguchi D., Koizumi S., Macromolecules J., 41, 453-464, 2008

• Sae-oui P., Thepsuwan U., Thaptong P., Advances in Polymer Technology

J., 33, 21422, 2014.

• Combessis A., Mazel C., Maugin M., Flandin L., Appl. Polym. Sci. J., 130,

1778-1786, 2013

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