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Published in: Cellulose 13-14/2019

26-07-2019 | Original Research

Curaua cellulose sheets dip coated with micro and nano carnauba wax emulsions

Authors: Adriana de Campos, Pedro C. Claro, Bruno R. Luchesi, Marcela Miranda, Fernanda V. D. Souza, Marcos David Ferreira, José M. Marconcini

Published in: Cellulose | Issue 13-14/2019

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Abstract

The cellulose sheets used in packaging applications depend on the hydrophilic properties of the cellulose fibers. However, the development of hydrophobic cellulose from new sustainable materials obtained from renewable sources is still poorly reported in the literature. Thus, a green method to obtain hydrophobic curaua cellulose sheets was studied. The sheets were dip coated multiple times to achieve layer-by-layer deposition, in carnauba wax micro and nanoemulsions. In this way, different sizes of carnauba wax particles penetrated the small cellulose pores between entangled fibers, leading to different properties. The nano carnauba emulsion presented the best performance since the sheets showed lower moisture permeability, slightly higher contact angle and stronger cellulose-wax adhesion than the other samples. Besides that, the overall process is cheaper, making it more useful in industrial applications.

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Metadata
Title
Curaua cellulose sheets dip coated with micro and nano carnauba wax emulsions
Authors
Adriana de Campos
Pedro C. Claro
Bruno R. Luchesi
Marcela Miranda
Fernanda V. D. Souza
Marcos David Ferreira
José M. Marconcini
Publication date
26-07-2019
Publisher
Springer Netherlands
Published in
Cellulose / Issue 13-14/2019
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-019-02637-0

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