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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
A correlation of Raman data with the nanomechanical results of polymer nanomaterials with carbon nanoparticles
Original language description
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.
Czech name
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Czech description
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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
10404 - Polymer science

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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