Mechanical and thermal properties of polyphenylene sulfide/multiwalled carbon nanotube composites

• Published in: Journal of applied polymer science 2012-03, Vol.123 (5), p.2676-2683
• Main Authors: Jiang, Zhenyu, Hornsby, Peter, McCool, Rauri, Murphy, Adrian
• Format: Article
• Language: English
• Subjects: Applied sciences; carbon nanotubes; Composites; Computing time; crystallization; Dispersions; Exact sciences and technology; Forms of application and semi-finished materials; Materials science; Mathematical models; mechanical properties; Multi wall carbon nanotubes; Nanocomposites; poly(phenylene sulfide); Polymer industry, paints, wood; Polymer matrix composites; Polymers; Polyphenylene sulfides; Technology of polymers; Thermal properties
• ISSN: 0021-8995; 1097-4628; 1097-4628
• DOI: 10.1002/app.34669

Polyphenylene sulfide (PPS)/multiwalled carbon nanotube (MWCNT) composites were prepared using a melt‐blending procedure combining twin‐screw extrusion with centrifugal premixing. A homogeneous dispersion of MWCNTs throughout the matrix was revealed by scanning electron microscopy for the nanocomposites with MWCNT contents ranging from 0.5 to 8.0 wt %. The mechanical properties of PPS were markedly enhanced by the incorporation of MWCNTs. Halpin‐Tsai equations, modified with an efficiency factor, were used to model the elastic properties of the nanocomposites. The calculated modulus showed good agreement with the experimental data. The presence of the MWCNTs exhibited both promotion and retardation effects on the crystallization of PPS. The competition between these two effects results in an unusual change of the degree of crystallinity with increasing MWCNT content. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012