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Structural Changes and Their Implications in Foamed Flexible Polyurethane Composites Filled with Rapeseed Oil-Treated Ground Tire Rubber
Abstract
The utilization of post-consumer car tires is an essential issue from an ecological andeconomic point of view. One of the simplest and the least harmful methods is their material recyclingresulting in ground tire rubber (GTR), which can be further applied as fillers for polymer-basedcomposites. Nevertheless, insufficient interfacial interactions implicate the necessity of GTR modi-fication before introduction into polymer matrices. In this study, we investigated the influence ofrapeseed oil-assisted thermo-mechanical treatment of GTR using a reactive extrusion process on theprocessing, structure, and performance of flexible polyurethane/GTR composite foams. Appliedmodifications affected the processing of polyurethane systems. They caused a noticeable reductionin the average cell size of foams, which was attributed to the potential nucleating activity of solidparticles and changes in surface tension caused by the presence of oil. Such an effect was especiallypronounced for the waste rapeseed oil, which resulted in the highest content of closed cells. Structuralchanges caused by GTR modification implicated the enhancement of foams’ strength. Mechanicalperformance was significantly affected by the applied modifications due to the changes in glasstransition temperature. Moreover, the incorporation of waste GTR particles into the polyurethanematrix noticeably improved its thermal stability.
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Journal of Composites Science
no. 5,
ISSN: - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Kosmela P., Olszewski A., Zedler Ł., Burger P., Formela K., Hejna A.: Structural Changes and Their Implications in Foamed Flexible Polyurethane Composites Filled with Rapeseed Oil-Treated Ground Tire Rubber// Journal of Composites Science -Vol. 5,iss. 3 (2021), s.90-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/jcs5030090
- Sources of funding:
- Verified by:
- Gdańsk University of Technology
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