Tunable Electromagnetic Interference Shielding Properties of Binary Thermoplastic Composites Prepared by Reactive Microencapsulation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43933916" target="_blank" >RIV/60461373:22310/22:43933916 - isvavai.cz</a>
Result on the web
<a href="https://pubs.acs.org/doi/10.1021/acsapm.2c00084" target="_blank" >https://pubs.acs.org/doi/10.1021/acsapm.2c00084</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsapm.2c00084" target="_blank" >10.1021/acsapm.2c00084</a>
Alternative languages
Result language
angličtina
Original language name
Tunable Electromagnetic Interference Shielding Properties of Binary Thermoplastic Composites Prepared by Reactive Microencapsulation
Original language description
Thermoplastic composites integrating carbon nanotubes (CNT) and micron-sized metal particles dispersed in polymer matrices can address emerging multifunctional needs, (EMI) shielding combined with easy processing and affordable costs. Herein, an approach based on reactive microencapsulation is reported to prepare polyamide 6 (PA6)-based composites comprising binary loads of CNT and Al, Cu, or Fe particles. The microencapsulation is performed by activated anionic polymerization of epsilon-caprolactam in solution, in the presence of the metal/ CNT loads. The resulting hybrid microparticles are compressionmolded into plates containing effective metal/CNT loads in the range of 12-17 wt %. Among the materials synthesized, the one containing Al/CNT binary load (3:7 wt %) displays the highest EMI shielding effectiveness (SE) of 43.5 dB at 12 GHz, with a 2 mm thickness and an electrical conductivity Sigma dc of 6.61 x 10-3 S/cm. A synergetic effect is observed in all of the metal/CNT PA6 samples in terms of both Sigma dc and SE increase. Evidently, the presence of metal particles well dispersed in the conductive CNT network contributes to the mobility of the carriers and thus to the effective attenuation of the electromagnetic waves. Therefore, the binary composites of this study can be efficient thermoplastic EMI shielding materials.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10400 - Chemical sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Polymer Materials
ISSN
2637-6105
e-ISSN
2637-6105
Volume of the periodical
4
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
3482-3490
UT code for WoS article
000812953700001
EID of the result in the Scopus database
2-s2.0-85127981143