Biodegradable Poly (lactic acid)/ Poly (ethylene glycol) Reinforced Multi-Walled Carbon Nanotube Nanocomposite Fabrication, Characterization, Properties, and Applications
| Autor: | Sidek Hj Ab Aziz, Khamirul Amin Matori, Kanagesan Samikannu, Suzan Jabbar Obaiys, Umar Sa'as Aliyu, Ahmad Fahad Ahmad, Mohd Hafiz Mohd Zaid |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Thermogravimetric analysis
Materials science Polymers and Plastics Infrared spectroscopy 02 engineering and technology Dielectric Carbon nanotube macromolecular substances 010402 general chemistry 01 natural sciences Article law.invention lcsh:QD241-441 chemistry.chemical_compound lcsh:Organic chemistry law nanocomposites Fourier transform infrared spectroscopy Composite material chemistry.chemical_classification Nanocomposite poly (lactic acid) technology industry and agriculture General Chemistry Polymer multi-walled carbon nanotubes 021001 nanoscience & nanotechnology 0104 chemical sciences poly (ethylene glycol) chemistry 0210 nano-technology Ethylene glycol |
| Zdroj: | Polymers Volume 12 Issue 2 Polymers, Vol 12, Iss 2, p 427 (2020) |
| ISSN: | 2073-4360 |
| DOI: | 10.3390/polym12020427 |
| Popis: | This paper presents the electromagnetic interference properties of multi-walled carbon nanotubes (MWCNTs) as a novel nano-reinforcement filler in poly (lactic acid) (PLA)/poly (ethylene glycol) (PEG) polymer matrix that was prepared via melt blending mode. Plasticization of PLA was first carried out by PEG, which overcomes its brittleness problem, in order to enhance its flexibility. A waveguide adapter technique was used to measure the dielectric properties &epsilon r, and S-parameters reflection (S11) and transmission (S21) coefficients. The dielectric properties, microwave attenuation performances, and electromagnetic interference shielding effectiveness (EMISE) for all the material under test have been calculated over the full X-Band (8&ndash 12 GHz) due to its importance for military and commercial applications. The prepared samples were studied while using X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transforms infrared spectroscopy (FTIR), mechanical properties measurements, as well as thermogravimetric analysis (TGA). The results showed that the dielectric properties increased with increased multi-walled carbon nanotubes (MWCNTs) filler, as well as the shielding effectiveness of the MWCNT/PLA/PEG nanocomposites increased with the increasing of MWCNTs. The highest SE total value was found to be 42.07 dB at 12 GHz for 4 wt% filler content. It is also observed that the attenuation values of the nanocomposites increased with an increase in MWCNTs loading, as well as the power loss values for all of the samples increased with the increase in MWCNTs loading, except the amount of the transmitted wave through the nanocomposites. |
| Databáze: | OpenAIRE |
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