𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Plasma Functionalization of Multiwalled Carbon Nanotube Bucky Papers and the Effect on Properties of Melt-Mixed Composites with Polycarbonate

✍ Scribed by Petra Pötschke; Nicolas Peer Zschoerper; Björn P. Moller; Uwe Vohrer

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
394 KB
Volume
30
Category
Article
ISSN
1022-1336

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Multiwalled carbon nanotubes in the form of bucky papers were modified using Ar/O~2~ plasma and thereafter melt‐mixed into polycarbonate. The effect of plasma modification on the nanotubes was followed by XPS, indicating the formation of carboxylic or ester groups at the nanotube surfaces. In the melt‐mixed nanocomposites, the modified nanotubes exhibited a better macrodispersion and better phase adhesion to the matrix as evidenced by morphological investigations. The electrical percolation threshold was not altered and occurred below 0.5 wt.‐% nanotubes. The mechanical properties were improved by having higher values of stress at yield, stress beyond the yield point, and strain at break illustrating the effect of both better dispersion and enhanced phase adhesion.

magnified image

📜 SIMILAR VOLUMES

The effect of multiwalled carbon nanotub
The effect of multiwalled carbon nanotube dimensions on the morphology, mechanical, and electrical properties of melt mixed polypropylene-based composites
✍ Irina Dubnikova; Evgeniya Kuvardina; Vadim Krasheninnikov; Sergey Lomakin; Igor 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 386 KB 👁 2 views

## Abstract The effect of multiwalled carbon nanotube (MWCNT) dimensions and surface modification on the morphology, mechanical reinforcement, and electrical properties of PP‐based composites, prepared by melt mixing, has been studied. The MWCNTs of small (__d__ < 10 nm) and large (__d__ = 40–60 nm

Effect of different carbon fillers on th
Effect of different carbon fillers on the properties of PP composites: Comparison of carbon black with multiwalled carbon nanotubes
✍ Zhen Zhou; Shifeng Wang; Yong Zhang; Yinxi Zhang 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 431 KB 👁 2 views

## Abstract Polypropylene (PP)/carbon composites were prepared via melt blending PP with carbon fillers, including multiwalled carbon nanotubes (MWNTs) and carbon black (CB). Field‐emission scanning electron microscopy was used to research the morphology and dispersion of fillers in the PP matrix.