Enhancement of Electrical Conductivity by Changing phase Morphology for Composites Consisting of Polylactide and Poly(ε-caprolactone) Filled with Acid-Oxidized Multiwalled Carbon Nanotubes
Citations Over TimeTop 10% of 2011 papers
Abstract
Composites consisting of polylactide (PLA) and poly(ε-caprolactone) (PCL) filled with acid-oxidized multiwalled carbon nanotubes (A-MWCNTs) were prepared through melt compounding. Phase morphologies of PLA/PCL/A-MWCNT composites with different contents of filled A-MWCNTs and PCL compositions were mainly observed by scanning electron microscope. The results show that A-MWCNTs are selectively dispersed in the PCL phase, regardingless of PCL phase domain sizes. For PLA/PCL/A-MWCNT composites with fixed PLA/PCL ratio of 95/5, the dispersed PCL phase domain sizes in the PLA matrix decrease even though a small content of A-MWCNTs is added, compared with PLA/PCL blend with the same composition, indicating that A-MWCNTs effectively prevent from coalescence of the dispersed PCL phase domains. With filling of 1.0 wt % A-MWCNTs, an interesting change of electrical conductivity for PLA/PCL/A-MWCNT composites is observed, in which the maximum conductivity is observed for PLA/PCL/A-MWCNT composite with PLA/PCL ratio of 60/40. The result is well-explained by the formed cocontinuous phase morphology and effective A-MWCNT content.
Related Papers
- → Carbon nanotubes‐reinforced PET nanocomposite by melt‐compounding(2007)65 cited
- → Magnesium coated phosphate glass fibers for unidirectional reinforcement of polycaprolactone composites(2014)9 cited
- → Fabrication and Characterization of Carbon Nanotube Reinforced Poly(methyl methacrylate) Nanocomposites(2008)6 cited
- → Preparation and properties of SiC fibre reinforced SiAION ceramic composite(1997)8 cited