Publication
Rigid polyurethane foams from lignin based polyols
| dc.contributor.author | Cateto, Carolina | |
| dc.contributor.author | Barreiro, M.F. | |
| dc.contributor.author | Rodrigues, Alírio | |
| dc.contributor.author | Belgacem, Mohamed Naceur | |
| dc.date.accessioned | 2011-06-16T14:59:36Z | |
| dc.date.available | 2011-06-16T14:59:36Z | |
| dc.date.issued | 2008 | |
| dc.description.abstract | Rigid polyurethane (RPU) foams were synthesized using lignin-based polyols obtained by an oxypropylation process. Alcell, Indulin AT, Curan 27-11P and Sarkanda lignins have been oxypropylated using formulations deduced from an optimization study with Alcell. L/PO/C (ratio between lignin, PO and catalyst content) of 30/70/2 and 20/80/5 were used to obtain the desired polyols. The resulting RPU foams were characterized in terms of density, mechanical properties, conductivity and morphology. All Sarkanda lignin based polyols and the 30/70/2 Curan 27-11P polyol were found inadequate for RPU formulations. Alcell and Indulin AT based polyols and the 20/80/5 Curan 27-11P polyol resulted in RPU foams with properties very similar to those obtained from conventional commercial polyols. RPU foams produced with the 30/70/2 Alcell and the 30/70/2 Indulin AT polyols exhibited improved properties compared with those from 20/80/5 based formulations. | por |
| dc.identifier.citation | Cateto, C.A.; Barreiro, M.F.; Rodrigues, A.E.; Belgacem, M.N. (2008). Rigid polyurethane foams from lignin based polyols. In IV International Conference on Times of Polymers (TOP) and Composites. Ischia, Italy. | por |
| dc.identifier.uri | http://hdl.handle.net/10198/5234 | |
| dc.language.iso | eng | por |
| dc.subject | Lignin | por |
| dc.subject | Biopolyols | por |
| dc.subject | Polyurethane foams | por |
| dc.title | Rigid polyurethane foams from lignin based polyols | por |
| dc.type | conference poster | |
| dspace.entity.type | Publication | |
| oaire.citation.conferencePlace | Ischia | por |
| oaire.citation.title | IV International Conference on Times of Polymers (TOP) and Composites | por |
| person.familyName | Barreiro | |
| person.givenName | Filomena | |
| person.identifier.ciencia-id | 3418-47D5-5746 | |
| person.identifier.orcid | 0000-0002-6844-333X | |
| person.identifier.rid | L-9802-2014 | |
| person.identifier.scopus-author-id | 57188719717 | |
| rcaap.rights | openAccess | por |
| rcaap.type | conferenceObject | por |
| relation.isAuthorOfPublication | 0391987c-ba90-488b-839a-153447ce1f0f | |
| relation.isAuthorOfPublication.latestForDiscovery | 0391987c-ba90-488b-839a-153447ce1f0f |