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02.11.2017 | Original Paper

Water resistant nanopapers prepared by lactic acid modified cellulose nanofibers

verfasst von: Jatin Sethi, Muhammad Farooq, Sunanda Sain, Mohini Sain, Juho Antti Sirviö, Mirja Illikainen, Kristiina Oksman

Erschienen in: Cellulose | Ausgabe 1/2018

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Abstract

The current work reports a novel, completely water based approach to prepare the water resistant modified cellulose nanopapers. Lactic acid in aqueous medium was attached on cellulose nanofibers surface with the aid of ultra-sonication and later oligomerized (polymerized) by compression molding under high temperature and pressure, to obtain the modified nanopapers with enhanced mechanical properties. The modified nanopapers showed an increase of 32% in the elastic modulus and 30% in the yield strength over reference nanopapers. Additionally, the modified nanopaper was hydrophobic in nature and had superior storage modulus under moist conditions. The storage modulus of wet modified nanopaper was three times (2.4 GPa) compared to the reference nanopapers (0.8 GPa) after 1 h immersion in water. Finally, the thermal stability of the modified nanopaper was also higher than reference nanopaper. The material reported is 100% bio-based.

Vorheriger Artikel Amphiphilic xylan–cholic acid conjugates: synthesis and self-assembly behaviors in aqueous solution

Nächster Artikel Mechanical and chemical dispersion of nanocelluloses to improve their reinforcing effect on recycled paper

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Titel: Water resistant nanopapers prepared by lactic acid modified cellulose nanofibers
verfasst von: Jatin Sethi
Muhammad Farooq
Sunanda Sain
Mohini Sain
Juho Antti Sirviö
Mirja Illikainen
Kristiina Oksman
Publikationsdatum: 02.11.2017
Verlag: Springer Netherlands
Erschienen in: Cellulose / Ausgabe 1/2018
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI: https://doi.org/10.1007/s10570-017-1540-2

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