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On the Tensile Tests of Polyurethane and Its Composites with Carbon Nanotubes
Joint Authors
Kuběna, Martin
Eliáš, Marek
Zajíčková, Lenka
Poduška, Jan
Kruml, Tomáš
Source
Advances in Materials Science and Engineering
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-19
Country of Publication
Egypt
No. of Pages
8
Abstract EN
Neat polyurethane (PU) specimens and composites of polyurethane with variable amounts of multiwalled carbon nanotubes (MWCNTs) were subjected to tensile tests, stress relaxation tests, and strain rate jumps.
Since the already published data about the effect of carbon nanotubes addition to polymer matrix are somewhat contradictory, great care was taken to understand the mechanical properties of neat PU specimens.
The studies revealed that the tensile curves of neat PU are substantially influenced by several factors, such as strain rate, age, and thickness of the specimens.
The addition of MWCNTs into the PU matrix had a negligible effect on the mechanical properties of composites at low strains (ε < 0.2).
With increasing strain, the MWCNTs addition augmented the strength of the composites, and at high local deformations, as in the previously reported indentation experiments, the adhesion strength between functionalized carbon nanotubes and PU matrix substantially influences the mechanical behavior.
The material response to the transient mechanical test showed an Arrhenius-type behavior and was analyzed accordingly.
The magnitude of the activation volume scaled with the average length of the free segment of the polymer molecules.
American Psychological Association (APA)
Kuběna, Martin& Eliáš, Marek& Zajíčková, Lenka& Poduška, Jan& Kruml, Tomáš. 2019. On the Tensile Tests of Polyurethane and Its Composites with Carbon Nanotubes. Advances in Materials Science and Engineering،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1120527
Modern Language Association (MLA)
Kuběna, Martin…[et al.]. On the Tensile Tests of Polyurethane and Its Composites with Carbon Nanotubes. Advances in Materials Science and Engineering No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1120527
American Medical Association (AMA)
Kuběna, Martin& Eliáš, Marek& Zajíčková, Lenka& Poduška, Jan& Kruml, Tomáš. On the Tensile Tests of Polyurethane and Its Composites with Carbon Nanotubes. Advances in Materials Science and Engineering. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1120527
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1120527