Effects of Liquid-to-Powder Ratio on the Properties of Self-Setting Silk Fibroin/Calcium Phosphate Composites

Abstract:

In this study, the high purity tetracalcium phosphate (TTCP) was prepared conveniently after studying the effect of cooling method on the purity of TTCP. The influence of liquid-to-powder (L/P) ratio on the properties of self-setting silk fibroin/calcium phosphate composites was studied. The results showed that the temperature of the furnace had a significant influence on the purity of TTCP when samples were removed from the furnace. Whether using N2 or not had no obvious effect on the purity of TTCP when the temperature declined from 1500°C to 1300°C. The setting time of composites became longer with the increase of L/P ratio in a range 0.32 - 0.39 ml/g, but all less than 15min. The injectability of the composites improved significantly as the L/P ratio increased. The compressive strength of composites reached maximum at the L/P ratio of 0.34 ml/g. The compressive strength decreased with the increase of L/P ratio greater than 0.34ml/g. The L/P ratio had no significant effect on the structure of the composites and the rod-like crystal of hydroxyapatite appeared in all the hardening-body of composites.

• Periodical: Advanced Materials Research (Volumes 550-553)
• Pages: 1133-1138
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.550-553.1133
• Online since: July 2012
• Authors: Rui Juan Xie, Yang Yang Huang, Biao Wang, Meng Zhang
• Keywords: Calcium Phosphate Cement (CPC), Compressive Strength, Liquid-Powder Ratio, Silk Fibroin

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