کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1644001 | 1517259 | 2014 | 4 صفحه PDF | دانلود رایگان |
• The ultra-low percolation threshold of 0.94 vol% has been achieved.
• This result was attributed to the shish–calabash-like conductive network.
• The synergistic effect of the hybrid conductive fillers CF/CB was evaluated.
• The mechanical properties of the segregated composite have also been improved.
Under the assistance of carbon fibers (CFs) with a large aspect ratio, an evident reduction in the percolation threshold of a segregated carbon black (CB)/polypropylene (PP) conductive polymer composite (CPC) has been achieved. The origin of the ultra-low percolation threshold 0.94 vol% is ascribed to the design of a shish–calabash-like conductive network, where the CFs function as bridges between the segregated CB particles and CB particles act as calabashs contributing to the conductive framework. This interesting microstructure causes a synergistic effect on the conductive properties. A model is proposed to evaluate the percolation behavior of the unique CF/CB/PP composite.
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Journal: Materials Letters - Volume 129, 15 August 2014, Pages 72–75