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- W2294091720 abstract "Bio and nano technologies are absent or incipient in papermaking industry and, concretely, in recycling and high-yield pulps sectors. In this sense, the present Thesis uses cellulose nanofibers (CNF), both in bulk and on surface, for physicomechanical properties enhancement of both recycled papers and of those made from high-yield fibers. Moreover, in order to reach even higher physicomechanical properties, the synergetic action between CNF and enzymatic refining was investigated. Recycling through mechanical refinement was found to produce papers with similar properties than the original ones, without the possibility of enhancement. However, the above cited combination drives to papers with properties that can be used in higher performance applications. L’aplicacio de la bio i la nano tecnologia en el sector paperer en general i, mes concretament, en el subsector del reciclatge i les pastes d’alt rendiment es practicament inexistent o molt incipient. En aquest sentit, en aquesta tesi s’utilitzen nanofibres de cel·lulosa (CNF), tant en massa com en superficie, per tal d’incrementar les propietats fisico-mecaniques del paper de fibres secundaries i d’alt rendiment. A mes, amb l’objectiu d’assolir fins i tot propietats fisico-mecaniques superiors, es van utilitzar tecniques de refinat enzimatic en combinacio amb l’addicio de CNF. Es va constatar que el refinat mecanic de les fibres secundaries permet la fabricacio de papers amb les mateixes prestacions fisico-mecaniques que el paper original, sense la possibilitat d’incrementar les propietats. D’altra banda, l’addicio de CNF i el refinat enzimatic doten als papers de propietats que els obren les portes a nous horitzons d’aplicacio on els requeriments fisico-mecanics son superiors." @default.
- W2294091720 created "2016-06-24" @default.
- W2294091720 creator A5083609459 @default.
- W2294091720 date "2015-07-31" @default.
- W2294091720 modified "2023-09-23" @default.
- W2294091720 title "Nanotecnología en el sector papelero: mejoras en calidad y permanencia de las fibras de alto rendimiento y secundarias en una economía circular mediante el uso de nanofibras y el refino enzimático" @default.
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- W2294091720 hasPublicationYear "2015" @default.
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