Preparation of high strength zirconia by epoxy gel-casting using hydantion epoxy resin as a gelling agent.
Dental applications
Epoxy gel-casting
High strength
Hydantion epoxy resin
Zirconia
Journal
Materials science & engineering. C, Materials for biological applications
ISSN: 1873-0191
Titre abrégé: Mater Sci Eng C Mater Biol Appl
Pays: Netherlands
ID NLM: 101484109
Informations de publication
Date de publication:
Mar 2019
Mar 2019
Historique:
received:
02
02
2018
revised:
08
10
2018
accepted:
21
11
2018
entrez:
5
1
2019
pubmed:
5
1
2019
medline:
14
3
2019
Statut:
ppublish
Résumé
In this paper, a water soluble hydantion epoxy resin (ER) was employed to prepare zirconia green bodies with high mechanical strength via epoxy gel-casting (EGC) for dental applications. The rheological properties and gelation behaviors of the suspensions, and the microstructure and mechanical strength of zirconia were systematically studied. The results revealed that solid loadings of up to 52.0 vol% could be achieved with the addition of 0.8 wt% dispersant. When the concentration of ER in the 52.0 vol% suspensions increased from 10.0 to 25.0 wt%, the mechanical strength of the resulting green bodies was enhanced from 40.96 ± 5.20 to 51.22 ± 12.01 MPa. A rough sketch of a pre-sintered zirconia crown was soft-machined from the green body consolidated from a 52.0 vol% suspension containing 10.0 wt% ER. The sintered body had a high mechanical strength of 942.77 ± 95.61 MPa.
Identifiants
pubmed: 30606533
pii: S0928-4931(18)30352-7
doi: 10.1016/j.msec.2018.11.023
pii:
doi:
Substances chimiques
Epoxy Resins
0
Zirconium
C6V6S92N3C
zirconium oxide
S38N85C5G0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
280-285Informations de copyright
Copyright © 2018 Elsevier B.V. All rights reserved.