Premium
Oriented Poly(lactic acid)/Carbon Nanotube Composite Tapes with High Electrical Conductivity and Mechanical Properties
Author(s) -
Mai Fang,
Deng Hua,
Tu Wei,
Chankajorn Sayamol,
Fu Qiang,
Bilotti Emiliano,
Peijs Ton
Publication year - 2015
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201500163
Subject(s) - materials science , carbon nanotube , crystallinity , composite material , composite number , percolation threshold , nanocomposite , nanotube , polymer , electrical resistivity and conductivity , electrical conductor , dispersion (optics) , percolation (cognitive psychology) , engineering , electrical engineering , biology , physics , optics , neuroscience
Oriented poly(lactic acid) (PLA)/multiwall carbon nanotube (MWNT) tapes are prepared by solid‐state drawing. These tapes showed significant morphological, mechanical and electrical property changes after drawing, with polymer crystallinity, nanotube dispersion and alignment being improved. Interestingly, the presence of the MWNTs perturbed the orientation of the crystalline polymer chain domains. Drawing lowered the electrical conductivity and increased the percolation threshold of the nanocomposites, but micromechanical analysis showed that it greatly improved the reinforcing efficiency of the MWNTs. This resulted in an overall good balance with one of the best compromises in terms of high mechanical properties and electrical properties for conductive polymer composite tapes.