Journal
COMPOSITES SCIENCE AND TECHNOLOGY
Volume 72, Issue 2, Pages 235-242Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2011.11.007
Keywords
Carbon nanotubes; Polymer-matrix composites (PMCs); Mechanical properties; Casting; Buckypaper infiltration
Categories
Funding
- Spanish Ministerio de Ciencia e Innovacion [TME-2008-01156]
- Basque Country Governments [IT-365-07, SAIOTEK S-PE11UN132]
- University of the Basque Country [1481/2011]
- SGIker, General Research Services from the University of the Basque Country
Ask authors/readers for more resources
A comparative study of the influence of processing route on polyurethanes (PUs)/multiwalled carbon nanotube (MWCNT) composites mechanical and electrical properties and also morphology was undergone employing two differentiated processing methods, solvent casting and buckypaper infiltration, for producing PU composites with low, medium and high mass fractions of acid treated MWCNT, and with no covalent linkages between the matrix and the nanotubes. As for example, with a MWCNT mass fraction of similar to 18 wt.% the second method produced stiffer (270 MPa), lighter (948 kg m(-3)) and more electrically conductive (1.8 S cm(-1)) composite while the first one gave softer (111 MPa) and more ductile (141%) materials. These properties differences are related to the different PU/MWCNT dispositions obtained through each synthesis route. Nanotubes percolating concentration is found to be crucial on composite properties evolution and a preferential interaction of MWCNT with PU hard segments is observed for solvent cast composites. (C) 2011 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available