The Synthesis and Characteristic of PAA-Ch/SiO₂ Hydrogel Nanocomposites by Radiation Methods for Bone Materials

Abstract:

Generally, hydrogel compounds derived from either natural or synthetic chemical suffer from lack of mechanical strength. So high strength poly(acrylic acid) -chitosan-silica (PAA-Ch-Si) hydrogels were prepared by UV light or γ-ray irradiation method for scaffold material application in this paper. The absorption peaks from FTIR show the evidence for the successful grafting of PAA- Ch-Si hydrogel material through radiation co-polymerization. The mechanical property analysis indicate that the maximum compressive strength of this hydrogel was significantly increased to ~42 MPa when PAA incorporated with both chitosan and nano-silica. And from the test results, we can observe that these nanocomposites are fitted to appling for biomedical materials.

• Periodical: Applied Mechanics and Materials (Volumes 271-272)
• Pages: 288-291
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.271-272.288
• Online since: December 2012
• Authors: Te Hsing Wu, Hong Ru Lin, Lie Han Shen
• Keywords: Hydrogel Materials, Silica Dioxide, γ-Ray Irradiation

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