Polyurethane Wood Adhesives Prepared from Modified Polysaccharides
dc.contributor.author | Hosseinpourpia, Reza | |
dc.contributor.author | Eceiza Mendiguren, María Aranzazu | |
dc.contributor.author | Adamopoulos, Stergios | |
dc.date.accessioned | 2022-02-17T18:56:20Z | |
dc.date.available | 2022-02-17T18:56:20Z | |
dc.date.issued | 2022-01-28 | |
dc.identifier.citation | Polymers 14(3) : (2022) // Article ID 539 | es_ES |
dc.identifier.issn | 2073-4360 | |
dc.identifier.uri | http://hdl.handle.net/10810/55511 | |
dc.description.abstract | This study investigated the performance of polyurethane adhesives prepared with various combinations of wheat starch that had been modified by isophorone diisocyanate (MS), two polyol types (1,3-propanediol (PD) and glycerol (Gly)), native wheat starch (NS), and 4,4′-diphenylmethane diisocyanate (pMDI) at a NCO:OH weight ratio of 1:1. Two more adhesives were also synthesized with NS, PD, or Gly and pMDI blends and served as controls. The thermal behavior of the adhesives before and after the curing process, as well as their rheological performance and lap shear strength, were analyzed. Differential scanning calorimetry (DSC) showed a reduction in curing temperature and heat by adding MS. The thermal stability of the cured adhesives was slightly increased by MS addition. The viscosity of the adhesives that contained MS substantially increased at a linear ascendant ramp of shear, while the controls exhibited relatively low viscosity during the whole shear rate spectrum from 0.1 to 100 s−1. The tensile shear strength of wood veneers was also significantly increased by the incorporation of MS under both dry and wet measuring conditions. The maximum dry shear strength was obtained for the adhesive with Gly polyol and a higher content of MS and was comparable to the control adhesive with pMDI | es_ES |
dc.description.sponsorship | This research was funded by Lantmännen Forskningsstiftelse (Grant No. 2017H011) and Formas, Swedish Research Council for Sustainable Development (Grant No. 2018-00637). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | |
dc.subject | polyurethane adhesive | es_ES |
dc.subject | wheat starch | es_ES |
dc.subject | pMDI | es_ES |
dc.subject | isocyanate chemistry | es_ES |
dc.subject | wood adhesive | es_ES |
dc.title | Polyurethane Wood Adhesives Prepared from Modified Polysaccharides | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2022-02-11T14:46:57Z | |
dc.rights.holder | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/2073-4360/14/3/539 | es_ES |
dc.identifier.doi | 10.3390/polym14030539 | |
dc.departamentoes | Ingeniería química y del medio ambiente | |
dc.departamentoeu | Ingeniaritza kimikoa eta ingurumenaren ingeniaritza |
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Except where otherwise noted, this item's license is described as © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).