Polyurethane composite foams synthesized using bio-polyols and cellulose filler
Authors:
- Katarzyna Uram,
- Milena Leszczyńska,
- Aleksander Prociak,
- Anna Czajka,
- Michał Gloc,
- Michał K. Leszczyński,
- Sławomir Michałowski,
- Joanna Ryszkowska
Abstract
Rigid polyurethane foams were obtained using two types of renewable raw materials: bio-polyols and a cellulose filler (ARBOCEL® 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.
- Record ID
- CUTd67c45524d6b42519317a1b53d059094
- Publication categories
- ;
- Author
- Journal series
- Materials, ISSN , e-ISSN 1996-1944, Biweekly
- Issue year
- 2021
- Vol
- 14
- No
- 13
- Pages
- [1-17]
- Article number
- 3474
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 15-17; Bibliografia (liczba pozycji) - 50; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 14, Iss. 13, Spec. Iss.
- Substantive notes
- Special Issue: Development of Bio-Based Composite Foams
- Keywords in English
- rapeseed oil-based polyol, microcellulose, rigid polyurethane foams, thermal conductivity, cell structure
- DOI
- DOI:10.3390/ma14133474 Opening in a new tab
- URL
- https://www.mdpi.com/1996-1944/14/13/3474 Opening in a new tab
- Related project
- Rozwój biomateriałów modyfikowanych nanokrystaliczną celulozą do zastosowań termoizolacyjnych w niskich temperaturach. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Language
- eng (en) English
- License
- Score (nominal)
- 140
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTd67c45524d6b42519317a1b53d059094/
- URN
urn:pkr-prod:CUTd67c45524d6b42519317a1b53d059094
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.