Non-destructive functionalization of multi-walled carbon nanotubes with naphthalene-containing polymer for high performance Nylon66/multi-walled carbon nanotube composites
✍ Scribed by Kyung Tae Kim; Won Ho Jo
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 882 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0008-6223
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✦ Synopsis
A new compatibilizer, poly(vinyl benzyloxy methyl naphthalene)-g-poly(t-butyl methacrylate-co-methacrylic acid), was synthesized for Nylon 66 (N66)/multi-walled carbon nanotube (MWCNT) composites. It has been shown that the naphthalene unit in the main chain of the compatibilizer interacts with MWCNTs by p-p interaction and that the carboxylic acid unit in the graft chain of the compatibilizer interacts with the amide group of N66.
The use of the compatibilizer produces well-dispersed MWCNTs in N66 matrix, which results in improved mechanical and electrical properties of the composites, while the simple mixture of N66/MWNCTs without the compatibilizer exhibits poor mechanical and electrical properties due to severe aggregation of MWCNTs. It is also found that the compatibilizer with a small amount of carboxylic acids is more effective for improving the mechanical and electrical properties of N66/MWCNT composites.