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dc.contributor.authorMijas Vélez, Gabriela Dayana
dc.contributor.authorLis Arias, Manuel José
dc.contributor.authorPerez Renetero, Sonia
dc.contributor.authorRiba Moliner, Marta
dc.contributor.authorMartí, Meritxell
dc.contributor.authorCayuela Marín, Diana
dc.contributor.authorManich Bou, Albert M.
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Tèxtil i Paperera
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Ciència i Enginyeria de Materials
dc.date.accessioned2022-05-20T10:12:57Z
dc.date.available2023-04-28T00:27:14Z
dc.date.issued2022-04-28
dc.identifier.citationMijas, G. [et al.]. Kinetics of alkaline delignification of hemp and determination of lignin content by thermogravimetry. "Journal of wood chemistry and technology", 2022, vol. 42, núm. 3, p. 181-192.
dc.identifier.issn0277-3813
dc.identifier.urihttp://hdl.handle.net/2117/367574
dc.description.abstractRaw hemp (Cannabis sativa L.) was subjected to alkaline delignification with the application of NaOH ranging from [0.125M] to [1M] for times from 5 to 480¿min. Lignin contents of the original and delignified samples were determined. The samples were subjected to thermogravimetric analysis (TGA) under a N2 atmosphere with temperatures ramped from 25 to 600¿°C at 10¿°C min-1. Lignosulfonates samples of low, medium and high molecular weight were subjected to the same TGA and showed that lignin decomposed over the entire temperature range. The contributions of lignin to the mass loss during thermal decomposition of hemp and kinetics of lignin content and the most relevant TGA results were determined. Regression models estimating the lignin content of the fibers based on TGA results were formulated. These models allow for the prediction of mean lignin content within ± 0.1% (based on dry weight of pulp) in the central range of the experimental field
dc.description.sponsorshipinfo:eu-repo/grantAgreement/MINECO/1PE/MAT2016-79352-R
dc.format.extent12 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshHemp
dc.subject.lcshPlant fibers
dc.subject.lcshLignin
dc.subject.otherHemp fiber
dc.subject.otherAlkaline treatment
dc.subject.otherThermogravimetric analysis (TGA)
dc.subject.otherKinetics
dc.subject.otherLignin content
dc.titleKinetics of alkaline delignification of hemp and determination of lignin content by thermogravimetry
dc.typeArticle
dc.subject.lemacCànem
dc.subject.lemacFibres vegetals
dc.subject.lemacLignina
dc.contributor.groupUniversitat Politècnica de Catalunya. POLQUITEX - Materials Polimérics i Química Téxtil
dc.contributor.groupUniversitat Politècnica de Catalunya. TECTEX - Grup de Recerca en Tecnologia Tèxtil
dc.identifier.doi10.1080/02773813.2022.2067562
dc.relation.publisherversionhttps://www.tandfonline.com/doi/abs/10.1080/02773813.2022.2067562
dc.rights.accessOpen Access
local.identifier.drac33226616
dc.description.versionPostprint (author's final draft)
local.citation.authorMijas, G.; Lis, M.; Perez-Rentero, S.; Riba-Moliner, M.; Martí, M.; Cayuela, D.; Manich, A.M.
local.citation.publicationNameJournal of wood chemistry and technology
local.citation.volume42
local.citation.number3
local.citation.startingPage181
local.citation.endingPage192


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