Syntheses and characterization of bio-hydroxyapatite/ poly(amino acid) copolymer composite
A novel synthetic materials of bio-hydroxyapatite/poly(amino acid) copolymer composite for bone repair was prepared by in-situ polymerization. The structure and thermal properties were characterized by nuclear magnetic resonance ((1)HNMR), infrared spectrometer (IR), X-ray diffractmeter (XRD), X-ray...
Gespeichert in:
Veröffentlicht in: | Cai liao gong cheng = Journal of materials engineering 2013-04 (4), p.56-62 |
---|---|
Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | chi |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | A novel synthetic materials of bio-hydroxyapatite/poly(amino acid) copolymer composite for bone repair was prepared by in-situ polymerization. The structure and thermal properties were characterized by nuclear magnetic resonance ((1)HNMR), infrared spectrometer (IR), X-ray diffractmeter (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM) and differential scanning calorimeter (DSC); the compressive and flexural strength of the composite containing different BHA contents were investigated during degradability. The results indicated that the BHA particles distributed uniformly in the composite. The IR and XPS results showed that chemical bond was present between inorganic (BHA) and the organic (PAA). With 30%(mass fraction)BHA, the compressive strength of the composite enhanced with the introduction of BHA and reached 141.02MPa, and flexural strength was 86.32MPa, which is in the range of natural bone mechanical strength. The composite exhibited excellent degradability and its degra |
---|---|
ISSN: | 1001-4381 |
DOI: | 10.3969/j.issn.1001-4381.2013.04.011 |