Chemically recycled commercial polyurethane (PUR) foam using 2-hydroxypropyl ricinoleate as a glycolysis reactant for flexibility-enhanced automotive applications

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dc.contributor.authorJašek, Vojtěchcs
dc.contributor.authorMontag, Petrcs
dc.contributor.authorMenčík, Přemyslcs
dc.contributor.authorPřikryl, Radekcs
dc.contributor.authorKalendová, Alenacs
dc.contributor.authorFigalla, Silvestrcs
dc.coverage.issue41cs
dc.coverage.volume14cs
dc.date.accessioned2025-04-04T11:56:17Z
dc.date.available2025-04-04T11:56:17Z
dc.date.issued2024-09-20cs
dc.description.abstractThe automotive industry uses polyurethane (PUR) foam core in the vehicle headliner composite. The sector demands recycling suggestions to reduce its scrap and decrease the expenses. This work investigated the PUR depolymerization using synthesized 2-hydroxypropyl ricinoleate (2-HPR) from castor oil and incorporated the liquid recyclate (REC) into the original PUR foam. The synthesis of 2-HPR yielded 97.5%, and the following PUR depolymerization (via glycolysis) reached 87.2% yield. The synthesized products were verified by GPC, FTIR, ESI-MS, and 1H NMR cross-analysis. The laboratory experiments (565 mL) included rheological, structural, and reactivity investigations. Added 30% REC content decreased the apparent viscosity to 109 mPa s from standard 274 mPa s. The reactivity of the 30% REC system increased by 51.2% based on the cream time due to the high REC amine value. The block foam density of systems with 15% REC and above decreased by 14.8%. A system with 20% REC content was the most prospective for up-scale. The industrially significant up-scale (125 L) was performed successfully, and the tensile and flexural test specimens were sampled from the up-scaled foam. The tensile characteristic (tensile strength 107 +/- 8 kPa and elongation 9.2 +/- 0.7%) and flexural characteristic (flexural strength 156 +/- 12 kPa and flexural strain at deformation limit 23.4 +/- 0.6%) confirmed that the REC incorporation in the standard PUR foam improves the applicable significant mechanical properties and assures the manufacture improve. Chemical recycling is a material and energy-saving concept that solves the landfilling and incinerating of used materials. This article presents the polyurethane chemical recycling route, including a bio-based solvent.en
dc.formattextcs
dc.format.extent29966-29978cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationRSC Advances. 2024, vol. 14, issue 41, p. 29966-29978.en
dc.identifier.doi10.1039/d4ra04972acs
dc.identifier.issn2046-2069cs
dc.identifier.orcid0000-0002-8020-4948cs
dc.identifier.orcid0000-0002-1914-8764cs
dc.identifier.orcid0000-0002-7811-9840cs
dc.identifier.orcid0000-0003-2392-8031cs
dc.identifier.other189723cs
dc.identifier.researcheridE-8210-2010cs
dc.identifier.urihttps://hdl.handle.net/11012/250718
dc.language.isoencs
dc.publisherROYAL SOC CHEMISTRYcs
dc.relation.ispartofRSC Advancescs
dc.relation.urihttps://pubs.rsc.org/en/content/articlelanding/2024/ra/d4ra04972acs
dc.rightsCreative Commons Attribution 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2046-2069/cs
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/cs
dc.subjectrigid polyurethaneen
dc.subjectthermoplastic polyurethaneen
dc.subjectmorphologyen
dc.titleChemically recycled commercial polyurethane (PUR) foam using 2-hydroxypropyl ricinoleate as a glycolysis reactant for flexibility-enhanced automotive applicationsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-189723en
sync.item.dbtypeVAVen
sync.item.insts2025.04.04 13:56:17en
sync.item.modts2025.04.02 07:31:58en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
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