Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Registro completo
Provedor de dados:  ArchiMer
País:  France
Título:  Modelling the non Fickian water absorption in polyamide 6
Autores:  Arhant, Mael
Le Gac, Pierre-yves
Le Gall, Maelenn
Burtin, Christian
Briancon, Christophe
Davies, Peter
Data:  2016-11
Ano:  2016
Palavras-chave:  Water absorption
Free volume
Polyamide 6
Sea water
Modelling
Resumo:  This paper investigates the water absorption of polyamide 6. The high amount of absorbed water in the polymer and the large resulting decrease in the glass transition temperature (Tg) leads to a non Fickian water diffusion when samples are immersed, which is a significant difficulty when trying to model the water profile in thick specimens. The aim of this study is to be able to model this particular behaviour based on physical considerations. First, it is shown that the non Fickian water diffusion is caused by an increase in the diffusivity during water absorption. Two cases are then identified; one below Tg where the diffusivity is described using an Arrhenius law and one above Tg based on the free volume theory. Then, these two laws are implemented in a specific model that is able to describe the non Fickian water diffusion over a wide range of temperatures.
Tipo:  Text
Idioma:  Inglês
Identificador:  http://archimer.ifremer.fr/doc/00350/46158/45856.pdf

DOI:10.1016/j.polymdegradstab.2016.09.001

http://archimer.ifremer.fr/doc/00350/46158/
Editor:  Elsevier Sci Ltd
Formato:  application/pdf
Fonte:  Polymer Degradation And Stability (0141-3910) (Elsevier Sci Ltd), 2016-11 , Vol. 133 , P. 404-412
Direitos:  2016 Published by Elsevier Ltd.

info:eu-repo/semantics/openAccess

restricted use
Fechar
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional