Direct measurements of interfacial shear strength of multi-walled carbon nanotube/PEEK composite using a nano-pullout method

This paper presents a proposal of a simple and easy method to evaluate the interfacial shear strength (IFSS) of CNT-dispersed polymer composites. An individual multi-wall carbon nanotube (MWNT) was pulled out from a MWNT-dispersed/PEEK composite using a nano-pullout testing system installed in an SE...

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Bibliographic Details
Published in:Composites science and technology 2011-07, Vol.71 (10), p.1295-1300
Main Authors: Tsuda, Terumasa, Ogasawara, Toshio, Deng, Fei, Takeda, Nobuo
Format: Article
Language:English
Subjects:
A. Carbon nanotubes
A. Nano composites
Applied sciences
B. Interfacial strength
Composites
Elastic deformation
Exact sciences and technology
Forms of application and semi-finished materials
Interfacial shear strength
Multi wall carbon nanotubes
Nanocomposites
Nanomaterials
Nanostructure
Polyetheretherketones
Polymer industry, paints, wood
Stress-strain relationships
Technology of polymers
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Summary:This paper presents a proposal of a simple and easy method to evaluate the interfacial shear strength (IFSS) of CNT-dispersed polymer composites. An individual multi-wall carbon nanotube (MWNT) was pulled out from a MWNT-dispersed/PEEK composite using a nano-pullout testing system installed in an SEM. The tensile load was measured using the elastic deformation of an AFM cantilever. The pull-out length was controlled by making a through-thickness hole near the specimen edge using a focused ion beam (FIB) system. The IFSS of a MWNT/PEEK composite was measured as 3.5–14 MPa, which agrees with the IFSS estimated from the macroscopic stress–strain behavior of the MWNT/PEEK composites.
ISSN:0266-3538
1879-1050
DOI:10.1016/j.compscitech.2011.04.014