NH_4H_2PO_4促凝剂对α－Ca_3（PO_4）_2水化和硬化的影响

The Effect of NH_4H_2PO_4 on Hydration and Hardering of α-Ca_3(PO_4)_2

讨论了不同浓度ＮＨ４Ｈ２ＰＯ４促凝剂对α－Ｃａ３（ＰＯ４）２（α－ＴＣＰ）水化和硬化的影响，测试了相应的硬化物凝固时间和机械强度。最后利用扫描电子显微镜，Ｘ－射线衍射仪分别对α－ＴＣＰ－ＮＨ４Ｈ２ＰＯ４骨水泥硬化产物的物相和结构进行了探讨。

The authors discussed the effect of the set accelerator (NH4H2PO4 )on the hydration and hardening of α-Ca (PO4)2 (ie α-TCP), and tested the setting time and mechanical strength of the appropriate hardening products. Finally,the authors explored the phase and structure of the hardening products of α-TCP-NH4H2PO4 bone cement by using SEM and X-ray diffractometer