The effect of rapeseed oil-based polyols on the thermal and mechanical properties of ureaurethane elastomers

Kamila Mizera , Joanna Ryszkowska , Maria Kurańska , Aleksander Prociak

Abstract

Two types of rapeseed oil-based polyols in the content of 20 wt% and 50 wt% were used for synthesis of ureaurethane elastomers (EPUU) with isocyanate index 1.07. The bio-polyols were synthesized by epoxidation and opening of oxirane rings using isopropanol (RO) and diethylene glycol (MK). The aim of this work was to evaluate the impact of bio-polyols on the thermal and mechanical properties of the manufactured EPUUs, produced with poly(ethylene adipate) (PEA). Differences in the structure of used bio-polyols caused changes in the number of hydrogen bonds and degree of phase separation in EPUUs. As the content of bio-polyols increases, the number of hydrogen bonds connecting the rigid segments of these materials is reduced. The consequence of these changes is variation in the thermal characteristics of these materials. Cross-linking density calculated from dynamical mechanical thermal analysis increases for materials with 20% of both types of rapeseed oil based polyols and is the highest for material 80PEA/20MK. An introduction of the MK polyol also resulted in an increase in the elongation at break of the modified elastomers.
Author Kamila Mizera (FMSE / DSMP)
Kamila Mizera,,
- Division of Ceramic Materials and Polymers
, Joanna Ryszkowska (FMSE / DSMP)
Joanna Ryszkowska,,
- Division of Ceramic Materials and Polymers
, Maria Kurańska - Politechnika Krakowska im. Tadeusza Kościuszki [Politechnika Krakowska]
Maria Kurańska,,
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, Aleksander Prociak - Politechnika Krakowska im. Tadeusza Kościuszki [Politechnika Krakowska]
Aleksander Prociak,,
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Journal seriesPolymer Bulletin, ISSN 0170-0839, e-ISSN 1436-2449
Issue year2020
Vol77
Pages823-846
Publication size in sheets1.15
Keywords in EnglishUreaurethane elastomers, Rapeseed oil, Degradation, Thermal properties, Mechanical properties
ASJC Classification1600 General Chemistry; 2505 Materials Chemistry; 2507 Polymers and Plastics; 3104 Condensed Matter Physics
DOIDOI:10.1007/s00289-019-02774-3
URL https://link.springer.com/article/10.1007%2Fs00289-019-02774-3
Languageen angielski
File
Mizera2019_Article_TheEffectOfRapeseedOil-basedPo.pdf 2.82 MB
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 10-06-2020, ArticleFromJournal
Publication indicators Scopus Citations = 1; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 0.675; WoS Impact Factor: 2018 = 1.858 (2) - 2018=1.777 (5)
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