Data/hora: 20/06/2024 01:49:28

Biblioteca(s): | Embrapa Agroindústria Tropical; Embrapa Algodão.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 23/01/2024
Data da última atualização: | 02/02/2024
Autoria: | PEREIRA, A. L. S.; FEITOSA, J. P. A.; MORAIS, J. P. S.; ROSA, M. de F.
Afiliação: | ANDRÉ LUÍS SOUSA PEREIRA, UNIVERSIDADE FEDERAL DO CEARÁ; JUDITH PESSOA ANDRADE FEITOSA, UNIVERSIDADE FEDERAL DO CEARÁ; JOAO PAULO SARAIVA MORAIS, CNPA; MORSYLEIDE DE FREITAS ROSA, CNPAT.
Título: | Cellulose source tailors the physical and structural properties of double-functionalized aerogels.
Ano de publicação: | 2023
Fonte/Imprenta: | Journal of Natural Fibers, v. 20, n. 1, article 2140377, 2023.
DOI: | https://doi.org/10.1080/15440478.2022.2140377
Idioma: | Inglês
Notas: | Published online: 22 Nov 2022.
Conteúdo: | ABSTRACT - Cellulose aerogels are solid materials with high porosity, low density, and large surface area, and show excellent absorption of mechanical stress. These characteristics are appropriate for the development of new high-value pro-ducts. However, over the years, it has been increasingly difficult to compare different studies about this material due to the different approaches used. In the present work, three different raw materials, bacterial cellulose from synthetic medium (BC), bacterial cellulose from cashew juice permeate (BCP), and eucalyptus nanocellulose (EC) were double-functionalized with TEMPO oxidation followed by silanization and freeze-dried, resulting in three different types of cellulose aerogels. These aerogels were evaluated for their performance in the absorption of organic oils/solvents and mechanical properties. The raw materials lead to aerogels with different characteristics. BC aerogel has the best mechanical properties and absorp-tion capacity after 7 cycles; BCP aerogel presented the highest values for oil absorption and EC aerogel for organic solvent absorption.
Palavras-Chave: | Bacterial cellulose; Cashew juice permeate; Cellulose aerogel; Silanization; TEMPO oxidation.
Thesagro: | Anacardium Occidentale; Caju; Celulose.
Thesaurus Nal: | Cellulose.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1161221/1/Cellulose-source-tailors-physical-2022.pdf
Registro original: | Embrapa Algodão (CNPA)

Exemplares:

CNPAT - (17199-1) - UPA - AP - DD -  -  -  - DIS
CNPA - (29105-1) - UPC - AP - DD -  -  -  - DIS