Morphology, Thermal Stability, and Electrical Conductivity of Polymer Nanocomposites of Isotactic Polypropylene/Multi-Walled Carbon Nanotubes

Molecular weight of isotactic polypropylene (iPP) and concentration of multi-walled carbon nanotubes (MWCNT) effects on the morphology, thermal stability, and electrical conductivity for iPP/MWCNT nanocomposites were evaluated. Nanocomposites were prepared by solution mixing followed by non-isotherm...

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Bibliographic Details
Published in:International journal of polymeric materials 2013-06, Vol.62 (12), p.635-641
Main Authors: Ávila-Orta, C. A., Raudry-López, C. E., Dávila-Rodríguez, M. V., Aguirre-Figueroa, Y. A., Cruz-Delgado, V. J., Neira-Velázquez, M. G., Medellín-Rodríguez, F. J., Hsiao, B. S.
Format: Article
Language:English
Subjects:
Conductivity
Electrical conductivity
Molecular weight
Morphology
Nanocomposites
Nanotubes
nonisothermal crystallization
Polymers
thermal stability
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Summary:Molecular weight of isotactic polypropylene (iPP) and concentration of multi-walled carbon nanotubes (MWCNT) effects on the morphology, thermal stability, and electrical conductivity for iPP/MWCNT nanocomposites were evaluated. Nanocomposites were prepared by solution mixing followed by non-isothermal crystallization from the melt. The samples were characterized by different physical-chemical techniques. Electrical conductivity was obtained from electrical resistance measured using a source meter. It was determined that the morphology of the nanocomposites shows a change from spherulitic to fibrillar to undefined depending on the molecular weight of iPP and concentration of MWCNT. Morphology was correlated with thermal stability and electrical conductivity.
ISSN:0091-4037
1563-535X
DOI:10.1080/00914037.2013.769159