Special Issue "Polymer-CNT Nanocomposites"
A special issue of Polymers (ISSN 2073-4360).
Deadline for manuscript submissions: closed (31 December 2018).
Interests: GFRP; CFRP; fibre metal laminate; fatigue; durability; sensor; SHM; CNT
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Nanotechnology has emerged as one of the most promising tools for creating high-performance and multifunctional materials for various industrial applications. This Special Issue focuses on polymer nanocomposites (PNC) built from carbon nanotubes (CNT) embedded in thermosets or thermoplastic matrices.
Most probably, Radushkevich and Lukyanovich discovered carbon nanotubes in 1952 . The report of Iijima in 1991  boosted the science on CNTs because of the outstanding properties of this one-dimensional carbon nanoparticles. The mechanical and physical properties of polymers are enhanced by introducing single-wall CNTs (SWCNTs) and multi-wall CNTs (MWCNTs). The research on PNCs demonstrates that synthesis and processing techniques must be developed in parallel with scientific knowledge. CNTs have a high aspect ratio and modulus. They are mechanically stable, holding an extremely high stiffness, and are electrically and thermally conductive. The high specific surface area of nanosized CNTs leads to exceptional interactions with polymers in the solid and liquid states. Therefore, new dispersion techniques had to be developed. New synthesis methods for CNTs aimed to improve the quality and quantity of CNTs.
Nowadays, CNTs are available at industrial scale and quality. There are manifold industrial applications of PNCs, which, as outlined here, depend highly on the quality of available CNTs and manufacturing techniques for composites. However, beside the problem of standardisation, more efforts are required to close the gap along the industrial value chain between materials producers and product manufacturers.
Simultaneously, the elucidation of the fundamental mechanisms of electrical conduction and mechanical reinforcement with regard to strength, ductility, modulus, and fracture toughness of PNCs, in combination with industrial manufacturing methods to scale up the production, motivates further research and development:
- Improved electrical conductivities at very low weight fractions, e.g., antistatic transparent coatings
- Sensor materials, e.g.. for strain and temperature
- Improvement of mechanical properties – simultaneous increase of stiffness, strength, and fracture toughness
- Functional CNTs, e.g., by doping (p-,n- semiconductor) for thermal electric generators
- Radushkevich, L.V., Lukyanovich, V.M., 1952. O strukture ugleroda, obrazujucegosja pri termiceskom razlozenii okisi ugleroda na zeleznom kontakte. Zhurnal Fizicheskoi Khimii 26, 88–95.
- Iijima, S., 1991. Helical microtubules of graphitic carbon. Nature 354 (6348), 56–58. doi:10.1038/354056a0.
Manuscript Submission Information
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- Electrical properties of Polymer–CNT Nanocomposites
- Mechanical properties of Polymer–CNT Nanocomposites
- Low filler content–high filler content
- Dispersion techniques also in combination with the addition of functional groups
- Hybrid composites à combination with fibers or other reinforcing elements.