Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose Filler
Rigid polyurethane foams were obtained using two types of renewable raw materials: bio-polyols and a cellulose filler (ARBOCEL<sup>®</sup> P 4000 X, JRS Rettenmaier, Rosenberg, Germany). A polyurethane system containing 40 wt.% of rapeseed oil-based polyols was modified with the cellulos...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/14/13/3474 |
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| author | Katarzyna Uram Milena Leszczyńska Aleksander Prociak Anna Czajka Michał Gloc Michał K. Leszczyński Sławomir Michałowski Joanna Ryszkowska |
| author_facet | Katarzyna Uram Milena Leszczyńska Aleksander Prociak Anna Czajka Michał Gloc Michał K. Leszczyński Sławomir Michałowski Joanna Ryszkowska |
| author_sort | Katarzyna Uram |
| collection | DOAJ |
| description | Rigid polyurethane foams were obtained using two types of renewable raw materials: bio-polyols and a cellulose filler (ARBOCEL<sup>®</sup> P 4000 X, JRS Rettenmaier, Rosenberg, Germany). A polyurethane system containing 40 wt.% of rapeseed oil-based polyols was modified with the cellulose filler in amounts of 1, 2, and 3 php (per hundred polyols). The cellulose was incorporated into the polyol premix as filler dispersion in a petrochemical polyol made using calenders. The cellulose filler was examined in terms of the degree of crystallinity using the powder X-ray diffraction PXRD -and the presence of bonds by means of the fourier transform infrared spectroscopy FT-IR. It was found that the addition of the cellulose filler increased the number of cells in the foams in both cross-sections—parallel and perpendicular to the direction of the foam growth—while reducing the sizes of those cells. Additionally, the foams had closed cell contents of more than 90% and initial thermal conductivity coefficients of 24.8 mW/m∙K. The insulation materials were dimensionally stable, especially at temperatures close to 0 °C, which qualifies them for use as insulation at low temperatures. |
| first_indexed | 2024-03-10T10:11:13Z |
| format | Article |
| id | doaj.art-ef08065fdd4242f99bef08f3209af668 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T10:11:13Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-ef08065fdd4242f99bef08f3209af6682023-11-22T01:13:54ZengMDPI AGMaterials1996-19442021-06-011413347410.3390/ma14133474Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose FillerKatarzyna Uram0Milena Leszczyńska1Aleksander Prociak2Anna Czajka3Michał Gloc4Michał K. Leszczyński5Sławomir Michałowski6Joanna Ryszkowska7Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, PolandFaculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, PolandFaculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, PolandFaculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, PolandFaculty of Materials Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, PolandRigid polyurethane foams were obtained using two types of renewable raw materials: bio-polyols and a cellulose filler (ARBOCEL<sup>®</sup> P 4000 X, JRS Rettenmaier, Rosenberg, Germany). A polyurethane system containing 40 wt.% of rapeseed oil-based polyols was modified with the cellulose filler in amounts of 1, 2, and 3 php (per hundred polyols). The cellulose was incorporated into the polyol premix as filler dispersion in a petrochemical polyol made using calenders. The cellulose filler was examined in terms of the degree of crystallinity using the powder X-ray diffraction PXRD -and the presence of bonds by means of the fourier transform infrared spectroscopy FT-IR. It was found that the addition of the cellulose filler increased the number of cells in the foams in both cross-sections—parallel and perpendicular to the direction of the foam growth—while reducing the sizes of those cells. Additionally, the foams had closed cell contents of more than 90% and initial thermal conductivity coefficients of 24.8 mW/m∙K. The insulation materials were dimensionally stable, especially at temperatures close to 0 °C, which qualifies them for use as insulation at low temperatures.https://www.mdpi.com/1996-1944/14/13/3474rapeseed oil-based polyolmicrocelluloserigid polyurethane foamsthermal conductivitycell structure |
| spellingShingle | Katarzyna Uram Milena Leszczyńska Aleksander Prociak Anna Czajka Michał Gloc Michał K. Leszczyński Sławomir Michałowski Joanna Ryszkowska Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose Filler Materials rapeseed oil-based polyol microcellulose rigid polyurethane foams thermal conductivity cell structure |
| title | Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose Filler |
| title_full | Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose Filler |
| title_fullStr | Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose Filler |
| title_full_unstemmed | Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose Filler |
| title_short | Polyurethane Composite Foams Synthesized Using Bio-Polyols and Cellulose Filler |
| title_sort | polyurethane composite foams synthesized using bio polyols and cellulose filler |
| topic | rapeseed oil-based polyol microcellulose rigid polyurethane foams thermal conductivity cell structure |
| url | https://www.mdpi.com/1996-1944/14/13/3474 |
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