ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Hydroxyapatite/collagen composites were prepared in-situ synthesis. The compositeswere finally achieved by dehydration including air-drying and freeze-drying methods. FTIR, XPSand DSC were employed to investigate the composites dehydrated by two methods. The air-driedcomposites had better mechanical properties than those of the composites dried by freeze drying.Air-drying of the composite induced more bond formation and crosslink between collagen fibersand HA crystals compared with freeze-drying of the composite, as indicated by the shifting ofamide A and I bands to the lower wavenumber and by the changes in the binding energy of O1s,Ca2p, and P2p, leading to the increase of the peak temperature of the composites. Collagencrosslink and bond formation in the air-dried composites were key factors to increase the bendingstrength of the composites. The results of this study confirm that in situ synthesis and air-drymethod are effective ways to obtain nanoHA/COL composites with high mechanical properties
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.330-332.349.pdf
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