Preparation and Performance of Polyvinyl Alcohol/Chitosan/Nano-hydroxyapatite Composite Hydrogel via a Chem-physical Method

doi:10.3724/SP.J.1095.2013.30051

Chinese Journal of Applied Chemistry

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Preparation and Performance of Polyvinyl Alcohol/Chitosan/Nano-hydroxyapatite Composite Hydrogel via a Chem-physical Method

FAN Zhiheng, ZHOU Li^*, OUYANG Junjun, LUO Zhongkuan, LI Miaomiao

(School of Chemistry and Chemical Engineering,Shenzhen University，Shenzhen 518060,China)

Received:2013-01-21 Revised:2013-04-28 Published:2014-01-10 Online:2014-01-10

Abstract

Abstract: Polyvinyl alcohol/chitosan/nano-hydroxyapatite(PVA/CS/n-HA) hydrogel was prepared via the chem-physical method. Effects of PVA content and the mass fraction of glutaraldehyde(GA) on the performance of the composite material were studied by testing its moisture content, tensile strength, infrared spectroscopy and TG spectrum. The results showed that when the mass ratio of PVA and CS+n-HA is 5∶1, and the mass fraction of GA is 2%, the composite hydrogel material has an excellent integrated performance. The moisture content, tensile strength, and elongation breakage are 82.0%, 2.14 MPa and 343.26%, respectively. Simultaneous thermal analysis(STA) results show that there is only water evaporation from 25 ℃ to 140 ℃, and the material starts to decompose at 360 ℃, suggesting that the material has a good thermal stability. Infrared analysis results show that there is a cross-linking reaction between CS and GA.

Key words: chitosan, nano-hydroxyapatite, polyvinyl alcohol, chemistry-physical method

CLC Number:

O646

FAN Zhiheng, ZHOU Li*, OUYANG Junjun, LUO Zhongkuan, LI Miaomiao. Preparation and Performance of Polyvinyl Alcohol/Chitosan/Nano-hydroxyapatite Composite Hydrogel via a Chem-physical Method[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2013.30051.

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Preparation and Performance of Polyvinyl Alcohol/Chitosan/Nano-hydroxyapatite Composite Hydrogel via a Chem-physical Method

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