degradation kinetics of calcium polyphosphate bioceramic: an experimental and theoretical study

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ID: 182146
2009
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Abstract
In this work, the degradation kinetics of calcium polyphosphate bioceramic was studied. Liquid state31P nuclear magnetic resonance (NMR), X-ray diffraction (XRD) and scanning electron microscope (SEM) were used to characterize the product. The in vitro degradation test was carried out at 37 ºC for up to 48 hours for both the simulation solution and the extreme solution. The ion concentrations were measured and analyzed by establishing a mathematical model referring to the chemical reaction kinetics. The results indicated that the degradability of calcium polyphosphate increased with the decrease of pH value, and the sample showed a rapid loss of ion concentration within the initial period of immersion followed by a slower loss ratio. The relationship between ion concentration and the degradation time coincided with Boxlucas model.
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wang2009materialsdegradation Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Qianbin Wang;Qiguang Wang;Jianyun Wang;Xiaohua Zhang;Xixun Yu;Changxiu Wan
Journal Majalah Ilmiah Teknologi Elektro
Year 2009
DOI
10.1590/S1516-14392009000400020
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