A correlation of Raman data with the nanomechanical results of polymer nanomaterials with carbon nanoparticles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F22%3A00557906" target="_blank" >RIV/61389013:_____/22:00557906 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0022286022009619?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0022286022009619?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.molstruc.2022.133305" target="_blank" >10.1016/j.molstruc.2022.133305</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A correlation of Raman data with the nanomechanical results of polymer nanomaterials with carbon nanoparticles

Popis výsledku v původním jazyce

Polymer nanocomposites in the form of membranes PCL/MWCNTs and PCL/MWCNTs-f, PCL/ESCNFs and PCL/ESCNFs-f, PCL/GO or PCL/rGO, containing a 0.5% nanoadditive in relation to the weight of the polymer in each material, were fabricated. The scanning electron microscopy images show that spherulites with the smallest diameters crystallized in PCL/MWCNTs and PCL/rGO, while those with the largest diameters crystallized in PCL/ESCNFs-f. Raman spectroscopy enabled the assessment of changes in the arrangement of the PCL matrix, as a result of the introduction of carbon nanoparticles. MWCNTs-f interact with the PCL polymer chain system, methylene and carbonyl groups, while MWCNTs and GO interact only slightly with the carbonyl groups of PCL. The parameters characterizing bands of carbon materials, i.e., the position of the G-band, the half-width, and the coefficients R1 and R2, indicated that nanomaterials in which carbon fibers are nanoadditives, are the most disordered materials among the tested samples. The analysis of the G’-band shift in membranes, compared to its position in the free nanoparticles, indicates the existing stresses in nanocomposite materials and the highest stress of around 4% was estimated for MWCNTs and MWCNTs-f.

Název v anglickém jazyce

A correlation of Raman data with the nanomechanical results of polymer nanomaterials with carbon nanoparticles

Popis výsledku anglicky

Polymer nanocomposites in the form of membranes PCL/MWCNTs and PCL/MWCNTs-f, PCL/ESCNFs and PCL/ESCNFs-f, PCL/GO or PCL/rGO, containing a 0.5% nanoadditive in relation to the weight of the polymer in each material, were fabricated. The scanning electron microscopy images show that spherulites with the smallest diameters crystallized in PCL/MWCNTs and PCL/rGO, while those with the largest diameters crystallized in PCL/ESCNFs-f. Raman spectroscopy enabled the assessment of changes in the arrangement of the PCL matrix, as a result of the introduction of carbon nanoparticles. MWCNTs-f interact with the PCL polymer chain system, methylene and carbonyl groups, while MWCNTs and GO interact only slightly with the carbonyl groups of PCL. The parameters characterizing bands of carbon materials, i.e., the position of the G-band, the half-width, and the coefficients R1 and R2, indicated that nanomaterials in which carbon fibers are nanoadditives, are the most disordered materials among the tested samples. The analysis of the G’-band shift in membranes, compared to its position in the free nanoparticles, indicates the existing stresses in nanocomposite materials and the highest stress of around 4% was estimated for MWCNTs and MWCNTs-f.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Molecular Structure

ISSN

0022-2860

e-ISSN

1872-8014

Svazek periodika

1264

Číslo periodika v rámci svazku

15 September

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

133305

Kód UT WoS článku

000829946700007

EID výsledku v databázi Scopus

2-s2.0-85130604227