Decorative laminates based on phenolic resins modified with sodium lignosulfonate and kraft lignin: Evaluation of mechanical properties

The substitution of phenol in the production of resol-type phenolic resins by environmentally-friendly compounds such as lignin and its derivatives is of great technological and academic interest, due to the similarity between resols and the aromatic structure of lignins. However, lignins must be ch...

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Autores principales: Taverna, María E., Nicolau, Verónica V., Ollearo, Rocío, Morán, Juan, Frontini, Patricia, Meira, Gregorio, Estenoz, Diana
Otros Autores: 247th ACS National Meeting
Formato: Documento de conferencia publishedVersion
Lenguaje:Inglés
Publicado: 2018
Materias:
decorative laminates
lignins
mechanical properties
Acceso en línea:http://hdl.handle.net/20.500.12272/3372
Aporte de:
RIA - Repositorio Institucional Abierto (UTN) de Universidad Tecnológica Nacional
id I68-R174-20.500.12272-3372
record_format dspace
institution Universidad Tecnológica Nacional
institution_str I-68
repository_str R-174
collection RIA - Repositorio Institucional Abierto (UTN)
language Inglés
topic decorative laminates
lignins
mechanical properties
spellingShingle decorative laminates
lignins
mechanical properties
Taverna, María E.
Nicolau, Verónica V.
Ollearo, Rocío
Morán, Juan
Frontini, Patricia
Meira, Gregorio
Estenoz, Diana
Decorative laminates based on phenolic resins modified with sodium lignosulfonate and kraft lignin: Evaluation of mechanical properties
topic_facet decorative laminates
lignins
mechanical properties
description The substitution of phenol in the production of resol-type phenolic resins by environmentally-friendly compounds such as lignin and its derivatives is of great technological and academic interest, due to the similarity between resols and the aromatic structure of lignins. However, lignins must be chemically-modified in order to increase their reactivity toward formaldehyde. In this work, the addition of commercial lignins (sodium lignosulfonate and Kraft-type) as partial replacement of phenol in the resols used for decorative laminates production is experimentally studied. The work involved: the characterization and reactivation of commercial lignins, the industrial synthesis of traditional and modified resols by replacement of 10 and 20% w/w of phenol, the industrial impregnation of Kraft-type papers with the produced resins and the production of laminates at laboratory and industrial scales. The mechanical performance of the laminates was deeply assesed by determining tensile modulus, bending strengh, biaxial flexural impact strenght and Mode- I Interlaminar Fracture Toughness in both processing directions. Modified laminates exhibited mechanical properties comparable with those of traditional laminates, indicating a negligible depreciation of them. Industrial tests were carried out at Centro S.A, San Francisco, Córdoba.
author2 247th ACS National Meeting
author_facet 247th ACS National Meeting
Taverna, María E.
Nicolau, Verónica V.
Ollearo, Rocío
Morán, Juan
Frontini, Patricia
Meira, Gregorio
Estenoz, Diana
format Documento de conferencia
publishedVersion
Documento de conferencia
author Taverna, María E.
Nicolau, Verónica V.
Ollearo, Rocío
Morán, Juan
Frontini, Patricia
Meira, Gregorio
Estenoz, Diana
author_sort Taverna, María E.
title Decorative laminates based on phenolic resins modified with sodium lignosulfonate and kraft lignin: Evaluation of mechanical properties
title_short Decorative laminates based on phenolic resins modified with sodium lignosulfonate and kraft lignin: Evaluation of mechanical properties
title_full Decorative laminates based on phenolic resins modified with sodium lignosulfonate and kraft lignin: Evaluation of mechanical properties
title_fullStr Decorative laminates based on phenolic resins modified with sodium lignosulfonate and kraft lignin: Evaluation of mechanical properties
title_full_unstemmed Decorative laminates based on phenolic resins modified with sodium lignosulfonate and kraft lignin: Evaluation of mechanical properties
title_sort decorative laminates based on phenolic resins modified with sodium lignosulfonate and kraft lignin: evaluation of mechanical properties
publishDate 2018
url http://hdl.handle.net/20.500.12272/3372
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bdutipo_str Repositorios
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