Effect of montmorillonite and shear stress on the orientation of single walled carbon nanotubes in polypopylene composite fiber

Abstract

The effect of montmorillonite and shear stress on the orientation of single walled carbon nanotubes and properties of SWCNT/MMT/polypropylene composite was investigated. The effect of functionalization of SWCNT on the orientation was also investigated. Polarized Raman spectroscopy was used to analyze the orientation of the SWCNTs. Orientation of SWCNTs was dependent on the experienced shear stress and functionalization of SWCNTs. The addition of MMT also improved the orientation of functionalized SWCNTs, while its effect was not significant for pristine SWCNTs. The existence of critical shear stress was observed for the orientation of the SWCNTs and the orientation of SWCNTs was found to occur more efficiently above this critical shear stress. Melt viscosity and heat of fusion data also confirmed that the addition of MMT‐induced improved orientation and dispersion of SWCNTs, especially for functionalized SWCNTs. POLYM. ENG. SCI., 54:2455–2459, 2014. © 2013 Society of Plastics Engineers

Effect of rigid nanoparticles and preparation techniques on the performances of poly(lactic acid) nanocomposites: A review

“…Meanwhile, a combination of two different structural nanofillers in polymers is another means of achieving controlled polymer properties to harness the individual nanofillers properties in the matrix, among others 40,41 . This is termed hybridization, for instance, MMT has been used as a hybrid with CNT to prevent the CNT agglomeration due to the strong van der Waals force 30,42 …”