Uniaxial strengthening of the polyamide film by the aligned carbon nanotubes
| Autor: | Eva Majkova, Peter Siffalovic, Mária Kováčová, Michal Bodík, Sara Banovska, Zdenko Spitalsky, Matej Jergel, Vladimir Held |
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| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Fabrication Nanocomposite 02 engineering and technology Carbon nanotube Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention symbols.namesake chemistry Mechanics of Materials law Ultimate tensile strength Polyamide Materials Chemistry symbols General Materials Science Composite material 0210 nano-technology Raman spectroscopy Layer (electronics) |
| Zdroj: | Materials Today Communications. 25:101432 |
| ISSN: | 2352-4928 |
| Popis: | The incorporation of carbon nanotubes (CNTs) into a polymer matrix can significantly improve its mechanical and electrical properties. In the case of the aligned CNTs in a polymer matrix, the mechanical properties along the alignment direction are significantly enhanced comparing to the perpendicular direction. Hence, the CNT alignment is a crucial step in the fabrication of a CNT-reinforced nanocomposite. The aligned growth of the CNTs or a post-incorporation CNT alignment are two options mainly used. In our work, we present a facile and scalable preparation method for the polyamide nanocomposite film containing a self-assembled layer of the aligned CNTs. The nanocomposite was prepared by spraying the polyamide solution onto a Langmuir film of the aligned CNTs. The nanocomposite films were characterized by the tensile strength measurements, Raman spectroscopy and broadband dielectric spectroscopy. The measured tensile strength along the CNT alignment was up to 12× higher than that in the perpendicular direction and the electrical conductivity increased from 10−15 S/cm to 10-7 S/cm. Our results show that even a rather simple method can provide a substantial enhancement of mechanical and electrical properties of a polymer by incorporation of CNTs. |
| Databáze: | OpenAIRE |
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