Electrical Conductivity and Electromagnetic Shielding Effectiveness of CB/ABS Composites

Hai Ping Duan; Yu Ping Duan

doi:10.4028/www.scientific.net/MSF.675-677.461

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Electrical Conductivity and Electromagnetic Shielding Effectiveness of CB/ABS Composites
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HomeMaterials Science ForumMaterials Science Forum Vols. 675-677Electrical Conductivity and Electromagnetic...

Electrical Conductivity and Electromagnetic Shielding Effectiveness of CB/ABS Composites

Abstract:

In this paper, the effects of carbon black (CB) mass fraction on volume resistivity and electromagnetic shielding effectiveness (SE) of CB/Acrylonitrile Butadiene Styrene (ABS) composites were studied. The results indicated that when CB mass fraction was over 15 wt%, the volume resistivity dropped sharply and when it rose to 35 wt%, the volume resistivity achieved the lowest value about 103Ω·cm. In addition, there are two obvious percolation effect at 15~20 wt% and 25~35 wt% CB respectively in the course of the volume resistivity changing. Titanate coupling agent could greatly improve conduction and SE of CB/ABS composites. Lastly, the SE of CB/ABS composites was investigated by experimental observation.