On merging DMA and microindentation to determine local mechanical properties of polymers

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63520424" target="_blank" >RIV/70883521:28110/18:63520424 - isvavai.cz</a>
Alternative codes found
RIV/70883521:28610/18:63520424
Result on the web
<a href="http://dx.doi.org/10.1016/j.polymertesting.2018.04.020" target="_blank" >http://dx.doi.org/10.1016/j.polymertesting.2018.04.020</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.polymertesting.2018.04.020" target="_blank" >10.1016/j.polymertesting.2018.04.020</a>

Result language
angličtina
Original language name
On merging DMA and microindentation to determine local mechanical properties of polymers
Original language description
Micro- and nanoindentation and Dynamic Mechanical Analysis (DMA) are different methods to determine mechanical and viscoelastic material properties. The aim of this study was to broaden the capabilities of their utilization by merging these methods. Three standard diamond indenters and a tungsten needle were implemented in a conventional DMA. Four types of standard polymers were investigated. Quasi-static microindentation was performed to determine local material static stiffness, and dynamic microindentation was performed to evaluate local material complex modulus. The results of the quasi-static microindentation showed that different static stiffnesses of the polymers can be distinguished. Even the smallest differences in local mechanical properties due to processing and annealing were distinguished. The complex moduli determined by dynamic microindentation were in good agreement with literature values and three-point bending results. It was shown that a conventional DMA is suitable to determine local and bulk mechanical viscoelastic material properties within one instrument.
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
—
OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/LO1504" target="_blank" >LO1504: Centre of Polymer Systems Plus</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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