Rheology as a valuable tool for probing of conductive structures in polyethylene composites
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F25%3A00638008" target="_blank" >RIV/61389013:_____/25:00638008 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Rheology as a valuable tool for probing of conductive structures in polyethylene composites
Original language description
The rheology of conductive polymer composites has attracted much attention due to the high sensitivity of this method to investigate the formation of conductive particle structures. In this contribution, we evaluated the effect of two specific procedures for the preparation of the single-wall carbon nanotube-filled nanocomposites in terms of their concentration and the quality of the dispersion in the high-density polyethylene matrix. In particular, we focused on the influence of the promising non-covalent modification process using alkylated pyrene resulting in good dispersion in non-polar environments. It was proved that the properties of the nanocomposites were controlled by the modification procedure used. The results obtained proved better dispersion and higher mobility of conductive nanoparticles in the case of the simpler modification procedure used. In addition, the rheological and electrical measurements before and after isothermal annealing in the molten state showed further conductivity increase. This approach allowed us to investigate the formation of conductive structures in a comprehensive manner. The high sensitivity of the measurements in the oscillatory shear flow to the changes in composite microstructure confirms their benefits for probing the conductive structure formation (TN02000067/10-V12).
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/TN02000067" target="_blank" >TN02000067: Future Electronics for Industry 4.0 and Medical 4.0</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů