针状硅灰石对磷酸盐骨水泥性能的影响  

Effects of needle-shape wollastonite on the property of calcium phosphate bone cement

作　　者：王志强[1] 张睿[1] 赵寿建 李诺[1] 

机构地区：[1]大连工业大学化工与材料学院,辽宁大连116034 [2]山东华鹏玻璃股份有限公司,山东荣成264309

出　　处：《大连工业大学学报》2010年第4期288-291,共4页Journal of Dalian Polytechnic University

基　　金：辽宁省教育厅A类项目(05L067);辽宁省科技厅自然科学基金项目(20032107)

摘　　要：以磷酸氢二钾和磷酸二氢钾为固化液,以磷酸四钙、α-磷酸三钙、磷酸氢钙、焦磷酸钙、羟基磷灰石和碳酸钙为原料合成骨水泥,向其添加针状硅灰石,研究了针状硅灰石对其性能的影响。结果表明,在磷酸钙骨水泥中添加针状硅灰石可以缩短凝结时间,提高抗压强度。当针状硅灰石的添加量为3%,骨水泥性能达到最佳;其初凝时间、终凝时间分别为14和28 min,样品在Ringer’s模拟液溶液中浸泡2周后抗压强度达49.23 MPa,浸泡液的pH值变化幅度小（7.1～7.8）,在安全范围之内。Calcium phosphate cement were prepared from tetracalcium phosphate（TTCP）,α-type tricalcium phosphate（α-TCP）,dicalcium phosphate dihydrate（DCPD）,calcium pyrophosphate（CPP）,hydroxyapatite（HA） and calcium carbonate（CaCO3） when added the solution dipotassium hydrogen phosphate and potassium dihydrogen phosphate as a hardening stimulator into the mixture.The results show that the needle-shape wollastonite can accelerate the setting of the CPC and increase the compressive strength.The property of bone cement was the best when the addition amount of needle-shape wollastonite is 3%.The initial setting time is 14 min and the final setting time is 28 min.The compressive strength of bone cement reaches 49.23 MPa.The change of pH value is in the safe region of 7.3-7.8.

关 键 词：磷酸钙骨水泥 模拟液浸泡 针状硅灰石 

分 类 号：TQ174.1[化学工程—陶瓷工业]