Swelling characterization of poly (vinyl alcohol) hydrogel for prosthetic intervertebral disc nucleus / 生物医学工程学杂志
Journal of Biomedical Engineering
;
(6): 995-998, 2005.
Artigo
em Chinês
| WPRIM
| ID: wpr-238294
ABSTRACT
In this study the poly(vinyl alcohol)(PVA) hydrogel elastomer was prepared by freezing-thawing method. The influences of percentage of poly (vinyl alcohol) in hydrogel, pH of solution and swelling temperature upon the swelling characteristic of PVA-hydrogel prosthetic nucleus material were studied. Its micropores were observed using SEM, and the swelling dynamics was further discussed. The experimental results showed that the poly (vinyl alcohol) hydrogel was a kind of network with a lot of micropores, the pore size was related with the PVA content. The maximum swelling ratio decreases when the percentage of PVA in hydrogel, the pH of solution and the swelling temperature were enhanced. The swelling process was described by the equation of swelling dynamics equation. The swelling rate was greatly influenced by the PVA content, the pH of solution and the dimension of hydrogel sample.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Álcool de Polivinil
/
Próteses e Implantes
/
Padrões de Referência
/
Materiais Biocompatíveis
/
Química
/
Implantes Experimentais
/
Hidrogéis
/
Concentração de Íons de Hidrogênio
/
Disco Intervertebral
Idioma:
Chinês
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2005
Tipo de documento:
Artigo
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