Polystyrene-Based Nanocomposites with Different Fillers: Fabrication and Mechanical Properties
| Autor: | Irina V. Semenova, Elena N. Popova, Olga A. Moskalyuk, Andrey V. Belashov, Vladimir E. Yudin, Elena M. Ivan’kova, Yaroslav M. Beltukov, Vladimir Y. Yelokhovsky |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
elastic moduli
Materials science Polymers and Plastics Polymer nanocomposite chemistry.chemical_element Modulus FOS: Physical sciences 02 engineering and technology Carbon nanotube Applied Physics (physics.app-ph) polystyrene digital holography Article law.invention lcsh:QD241-441 Condensed Matter::Materials Science chemistry.chemical_compound polymer nanocomposites lcsh:Organic chemistry law Composite material Elastic modulus Condensed Matter - Materials Science Nanocomposite 020502 materials Materials Science (cond-mat.mtrl-sci) Physics - Applied Physics General Chemistry Carbon black 021001 nanoscience & nanotechnology strain solitons 0205 materials engineering chemistry Polystyrene 0210 nano-technology Carbon |
| Zdroj: | Polymers, Vol 12, Iss 2457, p 2457 (2020) Polymers Volume 12 Issue 11 |
| ISSN: | 2073-4360 |
| Popis: | The paper presents a comprehensive analysis of the elastic properties of polystyrene-based nanocomposites filled with different types of inclusions: small spherical particles (SiO2 and Al2O3), alumosilicates (montmorillonite, halloysite natural tubules and mica), and carbon nanofillers (carbon black and multi-walled carbon nanotubes). Block samples of composites with different filler concentrations were fabricated by melt technology, and their linear and non-linear elastic properties were studied. The introduction of more rigid particles led to a more profound increase in the elastic modulus of a composite, with the highest rise of about 80% obtained with carbon fillers. Non-linear elastic moduli of composites were shown to be more sensitive to addition of filler particles to the polymer matrix than linear ones. A non-linearity modulus &beta s comprising the combination of linear and non-linear elastic moduli of a material demonstrated considerable changes correlating with those of the Young&rsquo s modulus. The changes in non-linear elasticity of fabricated composites were compared with parameters of bulk non-linear strain waves propagating in them. Variations of wave velocity and decay decrement correlated with the observed enhancement of materials&rsquo non-linearity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|