From morphology of attrited copper/MWCNT hybrid fillers to thermal and mechanical characteristics of their respective polymer-matrix composites: An analytical and experimental study

2017 ◽  
Vol 134 (41) ◽  
pp. 45397 ◽  
Author(s):  
Arash Badakhsh ◽  
Chan Woo Park
Keyword(s):  
Experimental Study ◽  
Polymer Matrix ◽  
Mechanical Characteristics ◽  
Polymer Matrix Composites ◽  
Matrix Composites ◽  
Hybrid Fillers

Effectiveness of Rattan Fiber as a Reinforcing Material in Polymer Matrix Composites: An Experimental Study

2021 ◽  
pp. 1-10
Author(s):  
Sunil Kumar Sahoo ◽  
Jyoti Ranjan Mohanty ◽  
Subhakanta Nayak ◽  
Sujit Kumar Khuntia ◽  
Pradeep Kumar Jena ◽  
...  
Keyword(s):  
Experimental Study ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Matrix Composites ◽  
Reinforcing Material

scholarly journals A Numerical Study on Electrical Percolation of Polymer-Matrix Composites with Hybrid Fillers of Carbon Nanotubes and Carbon Black

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Yuli Chen ◽  
Shengtao Wang ◽  
Fei Pan ◽  
Jianyu Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Black ◽  
Percolation Threshold ◽  
Polymer Matrix ◽  
Polymer Matrix Composites ◽  
Matrix Composites ◽  
Electrical Percolation ◽  
Hybrid Fillers ◽  
Nonlinear Relation ◽  
Electrical Percolation Threshold

The electrical percolation of polymer-matrix composites (PMCs) containing hybrid fillers of carbon nanotubes (CNTs) and carbon black (CB) is estimated by studying the connection possibility of the fillers using Monte Carlo simulation. The 3D simulation model of CB-CNT hybrid filler is established, in which CNTs are modeled by slender capped cylinders and CB groups are modeled by hypothetical spheres with interspaces because CB particles are always agglomerated. The observation on the effects of CB and CNT volume fractions and dimensions on the electrical percolation threshold of hybrid filled composites is then carried out. It is found that the composite electrical percolation threshold can be reduced by increasing CNT aspect ratio, as well as increasing the diameter ratio of CB groups to CNTs. And adding CB into CNT composites can decrease the CNT volume needed to convert the composite conductivity, especially when the CNT volume fraction is close to the threshold of PMCs with only CNT filler. Different from previous linear assumption, the nonlinear relation between CB and CNT volume fractions at composite percolation threshold is revealed, which is consistent with the synergistic effect observed in experiments. Based on the nonlinear relation, the estimating equation for the electrical percolation threshold of the PMCs containing CB-CNT hybrid fillers is established.

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