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Preparation and Characterization of nano-hydroxyapatite/polyvinyl Alcohol gel composites

Journal of Wuhan University of Technology(Materials Science) 2010年第3期25卷 474-478页

作者：潘育松 Department of Material Science & Engineering Anhui University of Science and Technology

nano-hydroxyapatite reinforced poly（vinyl alcohol） gel（nano-ha/pva gel） composites has been proposed as a promising biomaterial,especially used as an articular cartilage repair *** this paper,nano-ha/pva gel composite was prepared by in situ synthesis method and incorporation with freeze-thaw cycle *** microstructure and morphology were investigated by X-ray diffraction,TEM,SEM and *** results showed that the size of ha particles synthesized in pva solution was on the nanometer *** the size and crystallinity of ha particles synthesized in pva solution decreased compared with that of ha synthesized in distilled *** nano-ha particles were distributed in pva matrix uniformly due to the effect of pva solution as a dispersant while low content of ha particles in the *** the contrary,with high content of nano-ha particles in the composites,the particles tended to *** result of FT-IR analysis indicated that the chemical bond between nano-ha particles and pva matrix *** conformation and degree of tacticity of pva molecule changed because of the addition of ha ***,the interfacial strength of the composites was improved due to the interaction between nano-ha particle and pva matrix and this was beneficial to improving the mechanical properties of the composites.

关键词： nano-ha/pva gel composites freezing-thawing microstructure morphology

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