Toward the microstructure–properties relationship in MWCNT/epoxy composites: Percolation behavior and dielectric spectroscopy
Source abstract
Abstract
In this paper, the electrical and dielectric properties of epoxy composites containing multi walled carbon nanotubes (MWCNTs) are investigated by means of direct and alternate current measurements and correlated with the internal composite microstructure. A systematically study on the role of different nanotube network structures produced by varying the processing parameters: sonication time and curing temperature is performed. The percolation behavior of the produced composites is studied and the correlation between carbon nanotube networks induced by processing and the final properties is analyzed. An equivalent electrical circuit is proposed as a model to describe the dielectric property behavior due to different multi-scale composite microstructure and the interaction between tubes-tubes and tubes-matrix. © 2014 Elsevier Ltd.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Carbon Nanotubes in Composites · Smart Materials for Construction · Dielectric materials and actuators
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Processing-structure-multi-functional property relationship in carbon nanotube/epoxy composites10.1016/j.carbon.2006.05.014 ↗
2. An assessment of the science and technology of carbon nanotube-based fibers and composites10.1016/j.compscitech.2009.10.004 ↗
3. Fundamental aspects of nano-reinforced composites10.1016/j.compscitech.2005.01.014 ↗
4. Small but strong: a review of the mechanical properties of carbon nanotube–polymer composites10.1016/j.carbon.2006.02.038 ↗
5. A review and analysis of electrical percolation in carbon nanotube polymer composites10.1016/j.compscitech.2008.06.018 ↗
6. On the influence of the processing conditions on the performance of electrically conductive carbon nanotube/polymer nanocomposites10.1016/j.polymer.2008.04.033 ↗
7. Establishment, morphology and properties of carbon nanotube networks in polymer melts10.1016/j.polymer.2011.10.063 ↗
8. Recent developments concerning the dispersion of carbon nanotubes in polymers10.1002/marc.200900514 ↗
9. Dispersion of carbon nanotubes: mixing, sonication, stabilization, and composite properties10.3390/polym4010275 ↗
10. Tuning the insulator to conductor transition in a multiwalled carbon nanotubes/epoxy composite at substatistical percolation threshold10.1063/1.3242017 ↗
11. The alignment of single walled carbon nanotubes in an epoxy resin by applying a DC electric field10.1016/j.carbon.2012.01.067 ↗
12. Combined electrical and rheological properties of shear induced multiwall carbon nanotube agglomerates in epoxy suspensions10.1016/j.eurpolymj.2011.07.022 ↗
13. Ultrahigh-shear processing for the preparation of polymer/carbon nanotube composites10.1016/j.carbon.2007.07.017 ↗
14. Carbon nanotube-reinforced epoxy-composites: enhanced stiffness and fracture toughness at low nanotube content10.1016/j.compscitech.2004.04.002 ↗
15. Development of unsaturated polyester matrix–carbon nanofibers nanocomposites with improved electrical properties10.1002/app.32042 ↗
16. Tailoring the electrical properties of carbon nanotube–polymer composites10.1002/adfm.201000861 ↗
17. Temperature and time dependence of conductive network formation: dynamic percolation and percolation time10.1016/j.polymer.2005.11.053 ↗
18. Two percolation thresholds in carbon nanotube epoxy composites10.1016/j.compscitech.2006.02.037 ↗
19. Tailoring the electrical properties of MWCNT/epoxy composites controlling processing conditions10.1016/j.compositesa.2012.04.002 ↗
20. Carbon nanotube–polymer interactions in nanocomposites: a review10.1016/j.compscitech.2011.10.002 ↗
21. Optimal percolation of disordered segregated composites10.1103/PhysRevE.79.020104 ↗
22. Circuit elements in carbon nanotube–polymer composites10.1016/j.carbon.2004.02.037 ↗
23. Dielectric monitoring of carbon nanotube network formation in curing thermosetting nanocomposites10.1088/0022-3727/42/15/155402 ↗
24. Dispersion and rheology of carbon nanotubes in polymers10.1007/s12289-008-0376-6 ↗
25. The production of carbon nanotube/epoxy composites with a very high dielectric constant and low dielectric loss by microwave curing10.1016/j.carbon.2011.09.029 ↗
26. In situ preparation of polyimide composites based on functionalized carbon nanotubes10.1002/mame.200800241 ↗
27. Transport properties of nonhomogeneous segregated composites10.1103/PhysRevB.83.064203 ↗
28. Direct measurement of the percolation probability in carbon nanofiber–polyimide nanocomposites10.1103/PhysRevLett.102.116601 ↗
29. Percolation and conduction10.1103/RevModPhys.45.574 ↗
30. Stauffer · 1994
31. Barsoukov · 2005
32. Dielectric spectroscopy on melt processed polycarbonate—multiwalled carbon nanotube composites10.1016/S0032-3861(03)00451-8 ↗
33. Tailoring piezoresistive sensitivity of multilayer carbon nanotube composite strain sensors10.1177/1045389X07079872 ↗
34. Impedance spectroscopy of reactive polymers. 110.1002/polb.1994.090321509 ↗
35. Activation behaviour and dielectric relaxation in polyvinyl alcohol and multiwall carbon nanotube composite films10.1016/j.ssc.2011.03.013 ↗
36. Dynamics of single-walled carbon nanotube (SWNT)/polyisoprene (PI) nanocomposites in electric and mechanical fields10.1016/j.polymer.2007.10.011 ↗
37. McCrum · 1967
38. Electrical and dielectric behaviors and their origins in the three-dimensional polyvinyl alcohol/MWCNT composites with low percolation threshold10.1016/j.carbon.2009.01.014 ↗