The influence of hydroxyapatite: Zinc oxide ratio on the setting behavior and mechanical properties of polyalkenoate cements

Authors
Kenny, S Buggy, M Hill, RG
Citation
S. Kenny et al., The influence of hydroxyapatite: Zinc oxide ratio on the setting behavior and mechanical properties of polyalkenoate cements, J MAT S-M M, 12(10-12), 2001, pp. 901-904
Citations number
34
Categorie Soggetti
Multidisciplinary
Journal title
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN MEDICINE
ISSN journal
09574530 → ACNP
Volume
12
Issue
10-12
Year of publication
2001
Pages
901 - 904
Database
ISI
SICI code
0957-4530(2001)12:10-12<901:TIOHZO>2.0.ZU;2-T
Abstract
The influence of hydroxyapatite (HA) content on the setting behavior and me chanical properties of hydroxyapatite-zinc oxide-poly(acrylic acid) (HA-ZnO -PAA) composite cements were investigated as a function of HA content. The working time increased with HA content up to 45 wt % HA and then decreased whilst the setting time increased with increasing HA content. Mechanical pr operties were determined after storage in water at 37 degreesC for 1, 7 and 28 days. Young's moduli and compressive strength go through a maximum at a pproximately 30 and 45 wt % HA. Young's modulus increases with time, which is consistent with an ongoing crosslinking reaction. (C) 2001 Kluwer Academ ic Publishers.