Influence of organo-clay on electrical and mechanical properties of PP/MWCNT/OC nanocomposites |
| |
Authors: | V Levchenko Ye Mamunya G Boiteux M Lebovka P Alcouffe G Seytre E Lebedev |
| |
Institution: | aInstitute of Macromolecular Chemistry, NAS of Ukraine, 48 Kharkivske Chaussee, Kyiv 02160, Ukraine;bUniversité de Lyon, Lyon F-69003, France; IMP/LMPB Laboratoire des Matériaux Polymères et Biomatériaux, Bât ISTIL, 43 bd du 11 Novembre, Villeurbanne F-69622, France; CNRS, UMR5223, Ingénierie des Matériaux Polymères,Villeurbanne F-69621, France;cInstitute of Biocolloidal Chemistry named after F.D. Ovcharenko, NAS of Ukraine, 2, blvr. Vernadskogo, Kyiv 03142, Ukraine |
| |
Abstract: | The electrical, thermal and mechanical properties of nanocomposites, based on polypropylene (PP) filled by multi-walled carbon nanotubes (MWCNTs) and organo-clay (OC), were studied with the purpose of finding out the effect of OC on the microstructure of MWCNTs dispersion and PP/MWCNT/OC composites. It was found that addition of organo-clay nanoparticles improved nanotube dispersion and enhanced electrical properties of PP/MWCNT nanocomposites. Addition of organo-clay (MWCNT/OC ratio was 1/1) reduced the percolation threshold of PP/MWCNT nanocomposites from ?c = 0.95 vol.% to ?c = 0.68 vol.% of carbon nanotubes, while the level of conductivity became 2–4 orders of magnitude higher. The DSC and DMA analyses have shown that the influence of organo-clay on the thermal and mechanical properties of material was not significant in composites with both fillers as compared to PP/OC. Such an effect can be caused by stronger interaction of OC with carbon nanotubes than with polymer matrix. |
| |
Keywords: | Nanocomposite Percolation threshold Organo-clay Carbon nanotubes |
本文献已被 ScienceDirect 等数据库收录! |
|