Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps
Hemp (Cannabis sativa L.) is a plant of which, its ease of cultivation, structure and properties, provide it great potential for industrial applications; nevertheless, the unfavorable content of lignin complicates its processing, especially in the textile area. Thus, an appropriate knowledge of the...
| Autores: | , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/351582 |
| Acceso en línea: | https://hdl.handle.net/2117/351582 https://dx.doi.org/10.1080/02773813.2021.1970185 |
| Access Level: | acceso abierto |
| Palabra clave: | Hemp Lignin Plant fibers Alkaline treatment Thermogravimetric analysis (TGA) Kinetics Cànem Lignina Cànem -- Aplicacions industrials Fibres vegetals Àrees temàtiques de la UPC::Enginyeria tèxtil::Fibres tèxtils::Fibres naturals |
| id |
ES_e4e5123f4dbfb2eafae755fc2dd4657b |
|---|---|
| oai_identifier_str |
oai:upcommons.upc.edu:2117/351582 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition stepsMijas Vélez, Gabriela Dayana|||0000-0002-4688-7175Manich, AlbertLis Arias, Manuel José|||0000-0002-2026-085XRiba Moliner, Marta|||0000-0003-0001-2055Algaba Joaquín, Inés María|||0000-0002-1962-6359Cayuela Marín, Diana|||0000-0002-1048-8340HempLigninPlant fibersHempLigninAlkaline treatmentThermogravimetric analysis (TGA)KineticsCànemLigninaCànem -- Aplicacions industrialsFibres vegetalsÀrees temàtiques de la UPC::Enginyeria tèxtil::Fibres tèxtils::Fibres naturalsHemp (Cannabis sativa L.) is a plant of which, its ease of cultivation, structure and properties, provide it great potential for industrial applications; nevertheless, the unfavorable content of lignin complicates its processing, especially in the textile area. Thus, an appropriate knowledge of the delignification process would lead to treating hemp fibers as cotton fibers. In this work, hemp has been treated with an alkaline liquor [NaOH 1¿M] at 110¿°C during different times and afterwards, the substrates were chemically characterized in order to determine their lignin content and also analyzed by thermogravimetry (TGA). Through the correlation analysis, the relationship between lignin content, onset temperature of cellulose decomposition and loss of mass at the different decomposition steps were established. A hyperbolic kinetic model to explain the influence of alkaline treatment time on lignin content and also on the loss of mass at the four steps of decomposition of the samples by TGA up to 600¿°C has been developed. Although it has been found that the degradation of lignin occurred across the entire temperature range, results have shown that the influence of treatment time has become clearly relevant on lignin content, Step2 (180.5¿°C-273.5¿°C) where a fraction of 10 to 16% of lignin was degraded, and Step3 273.5¿°C-396.5¿°C) where cellulose was mainly decomposed and 20% of lignin was also degradedAuthors gratefully acknowledge the financial support for this research from the Ministry of Science and Innovation of Spain (Project MAT2016-79352-R) and from the National Secretary of Higher Education, Science, Technology and Innovation of Ecuador (SENESCYT) for Doctoral's Fellowship (No. CZ02-000926-2018)20212021-09-0220212021-09-17journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/351582https://dx.doi.org/10.1080/02773813.2021.1970185reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3515822026-05-27T15:37:01Z |
| dc.title.none.fl_str_mv |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps |
| title |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps |
| spellingShingle |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps Mijas Vélez, Gabriela Dayana|||0000-0002-4688-7175 Hemp Lignin Plant fibers Hemp Lignin Alkaline treatment Thermogravimetric analysis (TGA) Kinetics Cànem Lignina Cànem -- Aplicacions industrials Fibres vegetals Àrees temàtiques de la UPC::Enginyeria tèxtil::Fibres tèxtils::Fibres naturals |
| title_short |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps |
| title_full |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps |
| title_fullStr |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps |
| title_full_unstemmed |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps |
| title_sort |
Analysis of lignin content in alkaline treated hemp fibres: thermogravimetric studies and determination of kinetics of different decomposition steps |
| dc.creator.none.fl_str_mv |
Mijas Vélez, Gabriela Dayana|||0000-0002-4688-7175 Manich, Albert Lis Arias, Manuel José|||0000-0002-2026-085X Riba Moliner, Marta|||0000-0003-0001-2055 Algaba Joaquín, Inés María|||0000-0002-1962-6359 Cayuela Marín, Diana|||0000-0002-1048-8340 |
| author |
Mijas Vélez, Gabriela Dayana|||0000-0002-4688-7175 |
| author_facet |
Mijas Vélez, Gabriela Dayana|||0000-0002-4688-7175 Manich, Albert Lis Arias, Manuel José|||0000-0002-2026-085X Riba Moliner, Marta|||0000-0003-0001-2055 Algaba Joaquín, Inés María|||0000-0002-1962-6359 Cayuela Marín, Diana|||0000-0002-1048-8340 |
| author_role |
author |
| author2 |
Manich, Albert Lis Arias, Manuel José|||0000-0002-2026-085X Riba Moliner, Marta|||0000-0003-0001-2055 Algaba Joaquín, Inés María|||0000-0002-1962-6359 Cayuela Marín, Diana|||0000-0002-1048-8340 |
| author2_role |
author author author author author |
| dc.subject.none.fl_str_mv |
Hemp Lignin Plant fibers Hemp Lignin Alkaline treatment Thermogravimetric analysis (TGA) Kinetics Cànem Lignina Cànem -- Aplicacions industrials Fibres vegetals Àrees temàtiques de la UPC::Enginyeria tèxtil::Fibres tèxtils::Fibres naturals |
| topic |
Hemp Lignin Plant fibers Hemp Lignin Alkaline treatment Thermogravimetric analysis (TGA) Kinetics Cànem Lignina Cànem -- Aplicacions industrials Fibres vegetals Àrees temàtiques de la UPC::Enginyeria tèxtil::Fibres tèxtils::Fibres naturals |
| description |
Hemp (Cannabis sativa L.) is a plant of which, its ease of cultivation, structure and properties, provide it great potential for industrial applications; nevertheless, the unfavorable content of lignin complicates its processing, especially in the textile area. Thus, an appropriate knowledge of the delignification process would lead to treating hemp fibers as cotton fibers. In this work, hemp has been treated with an alkaline liquor [NaOH 1¿M] at 110¿°C during different times and afterwards, the substrates were chemically characterized in order to determine their lignin content and also analyzed by thermogravimetry (TGA). Through the correlation analysis, the relationship between lignin content, onset temperature of cellulose decomposition and loss of mass at the different decomposition steps were established. A hyperbolic kinetic model to explain the influence of alkaline treatment time on lignin content and also on the loss of mass at the four steps of decomposition of the samples by TGA up to 600¿°C has been developed. Although it has been found that the degradation of lignin occurred across the entire temperature range, results have shown that the influence of treatment time has become clearly relevant on lignin content, Step2 (180.5¿°C-273.5¿°C) where a fraction of 10 to 16% of lignin was degraded, and Step3 273.5¿°C-396.5¿°C) where cellulose was mainly decomposed and 20% of lignin was also degraded |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021-09-02 2021 2021-09-17 |
| dc.type.none.fl_str_mv |
journal article http://purl.org/coar/resource_type/c_6501 AM http://purl.org/coar/version/c_ab4af688f83e57aa |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2117/351582 https://dx.doi.org/10.1080/02773813.2021.1970185 |
| url |
https://hdl.handle.net/2117/351582 https://dx.doi.org/10.1080/02773813.2021.1970185 |
| dc.language.none.fl_str_mv |
Inglés eng |
| language_invalid_str_mv |
Inglés |
| language |
eng |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| dc.rights.openaire.fl_str_mv |
info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
open access http://purl.org/coar/access_right/c_abf2 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.source.none.fl_str_mv |
reponame:UPCommons. Portal del coneixement obert de la UPC instname:Universitat Politècnica de Catalunya (UPC) |
| instname_str |
Universitat Politècnica de Catalunya (UPC) |
| reponame_str |
UPCommons. Portal del coneixement obert de la UPC |
| collection |
UPCommons. Portal del coneixement obert de la UPC |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869422631882588160 |
| score |
15.300724 |