Influence of setting liquid composition and liquid-to-powder ratio on properties of a Mg-substituted calcium phosphate cement

Acta Biomaterialia
S PinaJ M F Ferreira

Abstract

The influence of four variables on various properties of a Mg-substituted calcium phosphate cement (CPC) was investigated. The variables were the heat treatment temperature of the precipitated powders, the composition of the setting liquid, the liquid-to-powder ratio (LPR), and the time over which hardened specimens were cured in air. The properties analysed were the phase composition of the starting powder, the initial setting time, the evolution of the storage shear modulus (G') and the loss shear modulus (G'') with the cement paste curing time (t), and the compressive strength. The presence of alpha-TCP in CPC facilitated the setting and hardening properties due to its progressive dissolution and the formation of brushite crystals. As far as the liquid composition is concerned, in cases where citric acid was used, adding a rheology modifier (10 wt.% polyethylene glycol or 0.5 wt.% hydroxyl propylmethylcellulose) to the acid led to an increase in the initial setting time, while an increase in the acid concentration led to a decrease in the initial setting time. The initial setting time showed to be very sensitive towards the LPR. The evolution of G' and G'' with curing time reflected the internal structural changes of cement ...Continue Reading

References

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Citations

Oct 24, 2009·Journal of Materials Science. Materials in Medicine·S PinaJ M F Ferreira
May 14, 2010·Journal of Materials Science. Materials in Medicine·A HanifiJ Varshosaz
Jan 12, 2011·Journal of Materials Science. Materials in Medicine·Elke VorndranUwe Gbureck
Aug 23, 2011·Acta Biomaterialia·Faleh TamimiJake Barralet
Jan 16, 2010·Colloids and Surfaces. B, Biointerfaces·Yonglin YuHuangyuan Huang
Sep 8, 2009·Acta Biomaterialia·S PinaJ M F Ferreira
Jun 25, 2010·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·S PinaJ M F Ferreira
Jan 1, 2013·Journal of Functional Biomaterials·Sergey V Dorozhkin
Sep 8, 2018·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Mohammad Hossein EsnaasharyJafar Javadpour
Dec 12, 2017·Journal of Biomaterials Applications·Tibor SopcakJuraj Durisin
Jan 28, 2015·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Shu-Ching HuangShinn-Jyh Ding
Apr 21, 2017·Journal of Materials Chemistry. B, Materials for Biology and Medicine·P M C TorresJ M F Ferreira
Dec 21, 2015·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Fangping ChenChangsheng Liu
Oct 29, 2020·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·Xiaoyu LiJinghua Li
Jan 18, 2021·Acta Biomaterialia·K HurleF Goetz-Neunhoeffer

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