Biodegradation of polyurethane‐polyhydroxybutyrate elastomeric composite investigated from morphological and structural viewpoint
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU128971" target="_blank" >RIV/00216305:26620/19:PU128971 - isvavai.cz</a>
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/app.46909" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/app.46909</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/app.46909" target="_blank" >10.1002/app.46909</a>
Alternative languages
Result language
angličtina
Original language name
Biodegradation of polyurethane‐polyhydroxybutyrate elastomeric composite investigated from morphological and structural viewpoint
Original language description
Morphological, structural, and tensile changes of polyurethane‐poly(3‐hydroxybutyrate) (PU‐PHB) elastomeric composites were evaluated after accelerated test in standard compost media. Size of PHB particles together with their uniform dispersion in the matrix were found to be key parameters for material's resistivity against degradation media. PU‐PHB composite films were synthesized by the “green” solvent free method, where commercially available PHB (PHB‐COM) and PHB produced by bacterium Cupriavidus necator H16 (PHB‐BUT) were both used in the amount of 1, 5, and 10 wt % in composites. Scanning electron microscopy revealed excellent dispersion of PHB‐COM microparticles in the PU matrix resulting in negligible weight losses of the material (max 0.7 wt %). On the contrary, PHB‐BUT particles were agglomerated which promoted partial degradation of the material (max 3.3 wt % loss) manifested by holes on the surface but without severe damage (e.g. fragmentation). Structural analysis confirmed lower crystallinity and less ordered crystalline phase of PHB after the degradation test, particularly in composites made of PHB‐BUT. Moreover, the materials were less stiff after the composting test, but beneficial with higher elongation at break. Such properties are favorable for the use of renewable PHB in the current industrial applications of PU elastomers. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46909.
Czech name
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Czech description
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Classification
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
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Applied Polymer Sciences
ISSN
0021-8995
e-ISSN
1097-4628
Volume of the periodical
136
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
„46909-1“-„46909-8“
UT code for WoS article
000450307600011
EID of the result in the Scopus database
2-s2.0-85052473529