Effect of carbon black on electrical and rheological properties of graphite nanoplatelets/poly(ethylene-butyl acrylate) composites

被引:44
作者
Oxfall, H. [1 ,2 ]
Ariu, G. [1 ,3 ]
Gkourmpis, T. [4 ]
Rychwalski, R. W. [1 ]
Rigdahl, M. [1 ]
机构
[1] Chalmers, Dept Mat & Mfg Technol, SE-41296 Gothenburg, Sweden
[2] Swerea IVF AB, SE-43122 Molndal, Sweden
[3] Univ Trent, Dept Mat Engn & Ind Technol, I-38050 Trento, Italy
[4] Borealis AB, Innovat & Technol, SE-44486 Stenungsund, Sweden
来源
EXPRESS POLYMER LETTERS | 2015年 / 9卷 / 01期
关键词
nanocomposites; hybrid composites; electrical properties; rheology; melt mixing; SCREW ROTATING SYSTEMS; POLYPROPYLENE NANOCOMPOSITES; POLYMER NANOCOMPOSITES; COMPOUNDING METHOD; NANOPLATELETS; CONDUCTIVITY; DIELECTRICS; MORPHOLOGY; NANOTUBES;
D O I
10.3144/expresspolymlett.2015.7
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The effect of adding carbon black on the electrical and rheological properties of graphite nanoplatelets/poly(ethylene-butyl acrylate) copolymer composites produced via melt or solution mixing was studied. By adding a small amount of low- or high-structured carbon black to the nanocomposite, the electrical percolation threshold decreased and the final conductivity (at higher filler contents) increased. The effect on the percolation threshold was significantly stronger in case of the high-structured carbon black where replacing 10 wt% of the total filler content with carbon black instead of graphite nanoplatelets reduced the electrical percolation threshold from 6.9 to 4.6 vol%. Finally, the solution mixing process was found to be more efficient leading to a lower percolation threshold. For the composites containing high-structured carbon black, graphite nanoplatelets and their hybrids there was a quite reasonable correlation between the electrical and rheological percolation thresholds.
引用
收藏
页码:66 / 76
页数:11
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