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Use of UV resonance Raman spectroscopy for assessing the brightness stability of ozone TCF bleached pulp

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Montet, Etienne
dc.contributor.author Isaza Ferro, Estefania
dc.contributor.author Perrin, Jordan
dc.contributor.author Lachenal, Dominique
dc.contributor.author Chirat, Christine
dc.date.accessioned 2020-06-25T08:44:09Z
dc.date.available 2020-06-25T08:44:09Z
dc.date.issued 2020-06-01
dc.identifier.citation Montet , E , Isaza Ferro , E , Perrin , J , Lachenal , D & Chirat , C 2020 , ' Use of UV resonance Raman spectroscopy for assessing the brightness stability of ozone TCF bleached pulp ' , Holzforschung , vol. 74 , no. 6 , pp. 605-613 . https://doi.org/10.1515/hf-2019-0275 en
dc.identifier.issn 0018-3830
dc.identifier.issn 1437-434X
dc.identifier.other PURE UUID: f6e6c8f2-6dfb-4232-85cb-caad6b35409a
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/use-of-uv-resonance-raman-spectroscopy-for-assessing-the-brightness-stability-of-ozone-tcf-bleached-pulp(f6e6c8f2-6dfb-4232-85cb-caad6b35409a).html
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85084742842&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/43478521/_1437434X_Holzforschung_Use_of_UV_resonance_Raman_spectroscopy_for_assessing_the_brightness_stability_of_ozone_TCF_bleached_pulp.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/45245
dc.description.abstract This study intends to explain the difference in brightness stability between hardwood ECF and TCFz kraft pulps bleached by DEpDD and A(ZEo)(ZEo)(ZP) sequences respectively, using UV Resonance Raman (UVRR) spectroscopy. The brightness stability of the pulps was tested via dry aging experiments where the Post-Color Number (PCN) of the ECF pulp was twice that of the TCF pulp. The aged and non-aged bleached pulps were analyzed with UVRR spectroscopy to identify the cause of the large difference in PCN. The spectra of ECF and TCF bleached pulps presented clear differences in the intensities of the Raman shifts associated to lignin, lignin-like compounds, and degradation products such as muconic acids. To identify more specifically the compounds affecting the PCN, several post-bleaching treatments were applied on the ECF pulp including single stages (E, B, P, Z) or combinations (ZE, ZB, ZP), and their UVRR spectra analyzed. It was found that alkaline-soluble compounds were the main culprits for the difference in PCN values between ECF and TCFz pulps. ZP combination was the most efficient in eliminating residual lignin and other unsaturated components and for the development of brightness and brightness stability. en
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Walter De Gruyter
dc.relation.ispartofseries Holzforschung en
dc.rights openAccess en
dc.subject.other Biomaterials en
dc.subject.other 216 Materials engineering en
dc.title Use of UV resonance Raman spectroscopy for assessing the brightness stability of ozone TCF bleached pulp en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Université Grenoble Alpes
dc.contributor.department Department of Bioproducts and Biosystems
dc.subject.keyword brightness stability
dc.subject.keyword chromophores
dc.subject.keyword ECF and TCF bleachingzone
dc.subject.keyword paper pulp
dc.subject.keyword UV resonance Raman spectroscopy
dc.subject.keyword Biomaterials
dc.subject.keyword 216 Materials engineering
dc.identifier.urn URN:NBN:fi:aalto-202006254202
dc.identifier.doi 10.1515/hf-2019-0275
dc.date.embargo info:eu-repo/date/embargoEnd/2021-05-04

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