Use of Primary Sludge from Pulp and Paper Mills for Nanocomposites
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Data
2012-01-01
Autores
Leão, Alcides Lopes [UNESP]
Cherian, Bibin Mathew [UNESP]
de Souza, Sivoney Ferreira [UNESP]
Sain, Mohini
Narine, Suresh
Caldeira, Mariana da Silva [UNESP]
Toledo, Maria Angelica S. [UNESP]
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Editor
Taylor & Francis Ltd
Resumo
Cellulose nanocrystals have been evaluated as reinforcement material in polymeric matrices due to their potential to improve the mechanical, optical, and dielectric properties of these matrixes. This work describes how high pressure defibrillation and chemical purification affect the sludge fiber morphology from micro to nanoscale. Microscopy techniques and X-ray diffraction were used to study the structure and properties of the prepared nanofibers and composites. Microscopic studies showed that the used individualization processes lead to a unique morphology of interconnected web-like structure of sludge fibers. The nanofibers are bundles of cellulose fibers having widths (5 to 30 nm) and estimated lengths of several micrometers.
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Palavras-chave
Nanobiocomposites, nanocellulose, nanocomposite, polyurethane, pulp & paper sludge, sludge nanofibre
Como citar
Molecular Crystals and Liquid Crystals. Abingdon: Taylor & Francis Ltd, v. 556, p. 254-263, 2012.