Aufsatz in einer Fachzeitschrift
Fabrication and characterization of ethylene-octene copolymer composites with ionic liquid functionalized carbon nanotubes



Details zur Publikation
Autor(inn)en:
Meri, R.; Zicans, J.; Ivanova, T.; Saldabola, R.; Reinholds, I.; Roja, Z.; Feldmann, M.; Heim, H.
Publikationsjahr:
2017
Zeitschrift:
Proceedings of the Estonian Academy of Sciences
Seitenbereich:
347--353
Jahrgang/Band:
66
Heftnummer:
4

Zusammenfassung, Abstract
Modification of multi-walled carbon nanotubes (MWCNTs) by means of imidazolium ionic liquid (IL) was performed. Structural characterization of funtionalized nanofillers (IL-f-MWCNTs) was made by means of Raman spectroscopy and transmission electron microscopy. MWCNTs and IL-f-MWCNTs were introduced within ethylene octane copolymer (EOC) with octene co-monomer content of 17{\%} by using the masterbatch approach. The efficiency of the carbonaceous nanofiller distribution within the polymer matrix was characterized by means of scanning electron microscopy. It was shown that MWCNTs and IL-f-MWCNTs were both effective in rising storage modulus, tensile modulus, stress-at break, and electrical conductivity of EOC-based nanocomposites along with the increasing nanofiller content. Besides, it was observed that the modification efficiency of the investigated EOC matrix composites by IL-f-MWCNTs was greater in comparison to pristine MWCNTs. (English) [ABSTRACT FROM AUTHOR] Mitmeseinalisi süsiniknanotorusid (MWCNT) modifitseeriti imidasoolium-ioonvedelike (IL) abil. Funktsionaliseeritud nanokompleksi (IL-f-MWCNT-de) struktuuriline karakteriseerimine viidi läbi, kasutades ramanspektroskoopia ja transmissioonelektronmikroskoopia v{õ}imalusi. MWCNT-d ja IL-f-MWCNT-d segati etüleenoktaankopolümeeri (EOC), kus okteeni komonomeeride sisaldus oli 17{\%}. Polümeeri maatriksis oleva süsinikku sisaldava nanolisandi jaotuse homogeensust karakteriseeriti skaneeriva elektronmikroskoobi abil. Leiti, et nii MWCNT kui ka IL-f-MWCNT m{õ}jutavad efektiivselt EOC-p{õ}histe nanokomposiitide ajalist vastupidavust, t{õ}mbetugevust, katkevuspiiri ja elektrijuhtivust s{õ}ltuvalt nanolisandi sisaldusest. Lisaks tuvastati, et modifitseerimata MWCNT-ga v{õ}rreldes oli funktsionaliseeritud IL-f-MWCNT-ga väärindatud EOC maatrikskomposiidi modifitseerimise efektiivsus suurem. Peale selle v{õ}imaldab EOC modifitseerimine IL-f-MWCNT-ga tänu funktsionaliseeritud nanolisandile teatud plastifitseeriva toime t{õ}ttu suhteliselt väiksemat katkemisristl{õ}ike vähenemist (eb). (Estonian) [ABSTRACT FROM AUTHOR] Copyright of Proceedings of the Estonian Academy of Sciences is the property of Teaduste Akadeemia Kirjastus and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)


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Zuletzt aktualisiert 2019-05-12 um 09:42

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