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Semi-rigid biopolyurethane foams based on palm-oil polyol and reinforced with cellulose nanocrystals
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.
Centre for Biocomposites and Biomaterials Processing, University of Toronto, University of Toronto, Centre for Biocomposites and Biomaterials Processing, Faculty of Forestry, University of Toronto.
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Materialvetenskap.ORCID-id: 0000-0003-4762-2854
2016 (Engelska)Ingår i: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 83, s. 56-62Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

In this study, water-blown biopolyurethane (BPU) foams based on palm oil were developed and cellulose nanocrystals (CNC) were incorporated to improve the mechanical properties of the foams. In addition, the foams were compared with petroleum polyurethane (PPU) foam. The foam properties and cellular morphology were characterized. The obtained results revealed that a low-density, semi-rigid BPU foam was prepared using a new formulation. CNC as an additive significantly improved the compressive strength from 54 to 117 kPa. Additionally, cyclic compression tests indicated that the addition of CNC increased the rigidity, leading to decreased deformation resilience. The dimensional stability of BPU foams was increased with increasing CNC concentration for both heating and freezing conditions.Therefore, the developed BPU nanocomposite foams are expected to have great potential as core material in composite sandwich panels as well as in other construction materials.

Ort, förlag, år, upplaga, sidor
2016. Vol. 83, s. 56-62
Nationell ämneskategori
Biomaterial
Forskningsämne
Trä och bionanokompositer
Identifikatorer
URN: urn:nbn:se:ltu:diva-9737DOI: 10.1016/j.compositesa.2015.06.008ISI: 000372383800006Scopus ID: 2-s2.0-84958907474Lokalt ID: 8672ad6d-7686-4d53-a795-a1b541c3dd70OAI: oai:DiVA.org:ltu-9737DiVA, id: diva2:982675
Anmärkning

Validerad; 2016; Nivå 2; 20150622 (andbra); Bibliografisk uppgift: Special Issue on Biocomposites

Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2019-08-23Bibliografiskt granskad

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Zhou, XiaojianOksman, Kristiina
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Composites. Part A, Applied science and manufacturing
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