Tuning the Mechanical Properties of SWNT/Nylon 6,10 Composites with Flexible Spacers at the Interface

We have prepared nylon 6,10 nanocomposites using functionalized single wall carbon nanotubes and our interfacial in situ polycondensation method. The specific functional groups −(CH2) n COCl [n = 4 and 9] on the sidewalls of SWNT were designed to covalently link nanotubes to the nylon matrix via alk...

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Bibliographic Details
Published in:Nano letters 2007-05, Vol.7 (5), p.1178-1185
Main Authors: Moniruzzaman, Mohammad, Chattopadhyay, Jayanta, Billups, W. Edward, Winey, Karen I
Format: Article
Language:English
Subjects:
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Mechanical and acoustical properties of condensed matter
Mechanical properties of nanoscale materials
Nanoscale materials and structures: fabrication and characterization
Nanotubes
Physics
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Summary:We have prepared nylon 6,10 nanocomposites using functionalized single wall carbon nanotubes and our interfacial in situ polycondensation method. The specific functional groups −(CH2) n COCl [n = 4 and 9] on the sidewalls of SWNT were designed to covalently link nanotubes to the nylon matrix via alkyl segments. The composites with functionalized SWNT show significant improvements in tensile modulus, strength, and toughness relative to nylon and nylon modified with nonfunctionalized SWNT. The alkyl linkages at the SWNT/nylon 6,10 interface contribute significantly to improving the toughness of the composites.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl062868e