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Citation: OUYANG Junjun, ZHOU Li. Preparation and Properties of Porous β-Tricalcium Phosphate/Chitosan/Polyvinyl Alcohol Composite Hydrogel[J]. Chinese Journal of Applied Chemistry, ;2012, 29(9): 995-999. doi: 10.3724/SP.J.1095.2012.00456 shu

Preparation and Properties of Porous β-Tricalcium Phosphate/Chitosan/Polyvinyl Alcohol Composite Hydrogel

OUYANG Junjun ,
ZHOU Li ^,

1.
School of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen 518060, China

Corresponding author: ZHOU Li,
Received Date: 12 October 2011
Available Online: 12 January 2012

Porous β-tricalcium phosphate/chitosan/polyvinyl alcohol(β-TCP/CS/PVA) composite hydrogel was prepared successfully by the freezing-thawing method using NaCl as porogen.The effects of different mass ratio of CS to β-TCP on the crystallinity of PVA and the performance of target β-TCP/CS/PVA composite hydrogel has been studied.The products were characterized by means of XRD,SEM,TG-DTA and their water uptake,swelling ratio,and tensile strength were also determined and compared.The water uptake of the hydrogel composite was about 70%~76%(mass fraction).When the mass ratio of CS to β-TCP was 2:8,it exhibited good mechanical properties:tensile strength of 0.56 MPa and elongation at breakage of 370% which can withstand normal human eye pressure.Therefore,the porous β-TCP/CS/PVA hydrogel composite is promising to be used as the skirt for artificial cornea.
- chitosan,
- polyvinyl alcohol,
- β-tricalcium phosphate,
- hydrogel,
- skirt of artificial cornea
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