Data/hora: 24/06/2024 21:59:36

Biblioteca(s): | Embrapa Instrumentação; Embrapa Mandioca e Fruticultura.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 1
Data corrente: | 31/07/2019
Data da última atualização: | 11/11/2019
Autoria: | CAMPOS, A.; CLARO, P. C.; LUCHESI, B. R.; MIRANDA, M.; SOUZA, F. V. D.; FERREIRA, M. D.; MARCONCINI, J. M.
Afiliação: | MARCOS DAVID FERREIRA, CNPDIA; JOSE MANOEL MARCONCINI, CNPDIA.
Título: | Curaua cellulose sheets dip coated with micro and nano carnauba wax emulsions.
Ano de publicação: | 2019
Fonte/Imprenta: | Cellulose, 2019.
Páginas: | 1-11
DOI: | 10.1007/s10570-019-02637-0
Idioma: | Inglês
Notas: | Published on line: 26 JULY 2019.
Conteúdo: | 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.
Palavras-Chave: | Cationic starch; Curaua cellulose fibers; Dip coating; Hidrophobicity; Micro carnauba wax; Nano carnauba wax.
Thesagro: | Carnaúba; Celulose; Cera; Fibra.
Categoria do assunto: | --
Registro original: | Embrapa Instrumentação (CNPDIA)

Exemplares:

CNPDIA - (17202-1) - UPC - AP - DD - PROCI.19-062 -  - 2019.0149 - DIS
CNPMF - (32779-1) - UPC - AP - DD - Publicação digital -  -  - DIS