Fabrication and properties of aligned multiwalled carbon nanotube-reinforced epoxy composites

2008 ◽  
Vol 23 (11) ◽  
pp. 2975-2983 ◽  
Author(s):  
Qunfeng Cheng ◽  
Jiaping Wang ◽  
Kaili Jiang ◽  
Qunqing Li ◽  
Shoushan Fan
Keyword(s):  
Carbon Nanotube ◽  
Epoxy Composite ◽  
Multiwalled Carbon Nanotube ◽  
Epoxy Composites ◽  
Scanning Calorimetry ◽  
Multiwalled Carbon ◽  
Pure Epoxy ◽  
Mechanical And Physical Properties ◽  
Cnt Arrays ◽  
Thermal Stability Of

A method to fabricate continuous and aligned multiwalled carbon nanotube (CNT)/epoxy composites is presented in this paper. CNT/epoxy composites were made by infiltrating an epoxy resin into a stack of continuous and aligned multiwalled CNT sheets that were drawn from super-aligned CNT arrays. By controlling the amount and alignment of the continuous multiwalled CNT sheets, a CNT/epoxy composite with high content of well-dispersed CNTs can be obtained. Differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) results show that the thermal stability of these CNT/epoxy composites was not affected by the addition of CNTs. The mechanical properties and electrical properties of the CNT/epoxy composites were dramatically improved compared to pure epoxy, suggesting that the CNT/epoxy composites can serve as multifunctional materials with combined mechanical and physical properties.

Effective properties of multiwalled carbon nanotube/epoxy composites using two different tubes

2008 ◽  
Vol 68 (6) ◽  
pp. 1422-1431 ◽  
Author(s):  
A. Hernández-Pérez ◽  
F. Avilés ◽  
A. May-Pat ◽  
A. Valadez-González ◽  
P.J. Herrera-Franco ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Effective Properties ◽  
Multiwalled Carbon Nanotube ◽  
Epoxy Composites ◽  
Multiwalled Carbon

scholarly journals Microwave Properties and Conductivity Anisotropy of Oriented Multiwalled Carbon Nanotube/Epoxy Composites

2016 ◽  
Vol 38 (5) ◽  
pp. 657-668 ◽  
Author(s):  
L. L. Vovchenko ◽  
◽  
V. V. Zagorodnii ◽  
O. S. Yakovenko ◽  
L. Yu. Matzui ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Multiwalled Carbon Nanotube ◽  
Epoxy Composites ◽  
Microwave Properties ◽  
Conductivity Anisotropy ◽  
Multiwalled Carbon

Structure-property relationships in polypropylene/poly(ethylene-co-octene)/multiwalled carbon nanotube nanocomposites prepared via a novel eccentric rotor extruder

2018 ◽  
Vol 38 (5) ◽  
pp. 427-435 ◽  
Author(s):  
Cong Meng ◽  
Jin-ping Qu
Keyword(s):  
Electron Microscopy ◽  
Carbon Nanotube ◽  
Multiwalled Carbon Nanotube ◽  
Structure Property ◽  
Excellent Performance ◽  
Scanning Calorimetry ◽  
Multiwalled Carbon ◽  
Eccentric Rotor ◽  
Elongation Flow ◽  
Poly Ethylene

Abstract In this work, polypropylene/poly(ethylene-co-octene)/multiwalled carbon nanotube (PP/POE/MWCNT) nanocomposites with different contents of MWCNTs were prepared by an eccentric rotor extruder to obtain engineering materials with excellent performance capability. Microphotographs (scanning electron microscopy and transmission electron microscopy) and dynamic mechanical analysis indicate that the MWCNTs were well dispersed in the polymer matrix under the elongation flow. The crystallization behavior was explored by X-ray diffraction and differential scanning calorimetry. The results show that MWCNTs promote heterogeneous nucleation and improve the To, Tc and Te values of the composites. On the basis of the rheology analysis, the complex viscosity of the PP/POE/MWCNT composites increased and formed an obvious Newton plat in the low-frequency range; both the G′ and G″ of all the samples increased monotonically, and a percolation threshold appeared for 1 wt% MWCNTs. Thus, the mechanical properties of the nanocomposites prepared under an elongation flow lead to an effective strengthening of PP/POE better than under a shear flow. This work provides a novel method based on elongational rheology to prepare engineered materials that possess excellent performance capabilities.

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