We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Thermokinetic analysis of the hydration process of calcium phosphate cement.
- Authors
Gao, W. Y.; Wang, Y. W.; Dong, L. M.; Yu, Z. W.
- Abstract
A microcalorimeter (Setaram c-80) was used to study the thermokinetics of the hydration process of calcium phosphate cement (CPC), a biocompatible biomaterial used in bone repair. The hydration enthalpy was determined to be 35.8 J g–1 at 37.0°C when up to 80 mg CPC was dissolved in 2 mL of citric buffer. In the present study, parameters related to time constants of the calorimeter were obtained by fitting the recorded thermal curves with the function θ= Ae–?t(1– e–?2t). The real thermogenetic curves were then retrieved with Tian function and the transformation rate of the hydration process of CPC was found to follow the equation α=1–[1–(0.0075 t)3]3. The microstructures of the hydrated CPC were examined by scanning electron microscopy. The nano-scale flake microstructures are due to crystallization of calcium phosphate and they could contribute to the good biocompatibility and high bioactivity.
- Subjects
CALCIUM phosphate; BIOMEDICAL materials; ANALYTICAL chemistry; POLYMER-impregnated cement; THERMAL analysis; CALORIMETRY
- Publication
Journal of Thermal Analysis & Calorimetry, 2006, Vol 85, Issue 3, p785
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-005-7433-x