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Are Cellulose Nanofibers a Solution for a More Circular Economy of Paper Products?

This paper presents the study of the feasibility of incorporating lignocellulosic nanofibers (LCNF) to paper in order to maintain the relevant physical properties and increase the number of cycles that paper can be recycled in the technosphere in a more circular economy. For that purpose, the effect of mechanical refining in recycling processes was compared with that of the novel LCNF addition. In this sense, the behavior of a bleached kraft hardwood pulp when recycled was investigated, as well as the effects of each methodology. Since there are many issues to be considered when trying to replace a technology, the present paper analyses its feasibility from a technical and environmental point of view. Technically, LCNF present greater advantages against mechanical refining, such as higher mechanical properties and longer durability of the fibers. A preliminary life cycle assessment showed that the environmental impacts of both systems are very similar; however, changing the boundary conditions to some feasible future scenarios, led to demonstrate that the CNF technology may improve significantly those impacts

We acknowledge the financial support of the Spanish and Economy and Competitiveness Ministry to the referenced projects: CTQ2012-3686-C02-01 and CTM2011-28506-C02-01

© Environmental Science and Technology, 2015, vol. 49, núm. 20, p.12206-12213

American Chemical Society

Author: Delgado Aguilar, Marc
Tarrés Farrés, Quim
Pèlach Serra, Maria Àngels
Mutjé Pujol, Pere
Fullana i Palmer, Pere
Date: 2015 October 20
Abstract: This paper presents the study of the feasibility of incorporating lignocellulosic nanofibers (LCNF) to paper in order to maintain the relevant physical properties and increase the number of cycles that paper can be recycled in the technosphere in a more circular economy. For that purpose, the effect of mechanical refining in recycling processes was compared with that of the novel LCNF addition. In this sense, the behavior of a bleached kraft hardwood pulp when recycled was investigated, as well as the effects of each methodology. Since there are many issues to be considered when trying to replace a technology, the present paper analyses its feasibility from a technical and environmental point of view. Technically, LCNF present greater advantages against mechanical refining, such as higher mechanical properties and longer durability of the fibers. A preliminary life cycle assessment showed that the environmental impacts of both systems are very similar; however, changing the boundary conditions to some feasible future scenarios, led to demonstrate that the CNF technology may improve significantly those impacts
We acknowledge the financial support of the Spanish and Economy and Competitiveness Ministry to the referenced projects: CTQ2012-3686-C02-01 and CTM2011-28506-C02-01
Format: application/pdf
ISSN: 0013-936X (versió paper)
1520-5851 (versió electrònica)
Document access: http://hdl.handle.net/10256/13697
Language: eng
Publisher: American Chemical Society
Collection: MICINN/PN 2012-2014/CTM2011-28506-C02-01
Reproducció digital del document publicat a: http://dx.doi.org/10.1021/acs.est.5b02676
Articles publicats (D-EQATA)
Is part of: © Environmental Science and Technology, 2015, vol. 49, núm. 20, p.12206-12213
Rights: Tots els drets reservats
Subject: Paper -- Fabricació
Papermaking
Pasta de paper -- Refinatge
Wood-pulp -- Refining
Nanofibres
Nanofibers
Title: Are Cellulose Nanofibers a Solution for a More Circular Economy of Paper Products?
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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