首页|真空吸渗技术制备生物可降解(HA+β-TCP)/Zn-3Sn相互连续复合材料的显微组织和性能

真空吸渗技术制备生物可降解(HA+β-TCP)/Zn-3Sn相互连续复合材料的显微组织和性能

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利用真空吸渗技术制备(HA+β-TCP)/Zn-3Sn相互连续复合材料.采用扫描电镜、X射线衍射仪(XRD)、力学性能测试、电化学实验、浸泡实验和紫外分光光度计分别研究复合材料的显微组织、力学性能、腐蚀行为和溶血率.研究结果表明,Zn-3Sn合金渗透到多孔HA+β-TCP骨架中形成致密的(HA+β-TCP)/Zn-3Sn相互连续复合材料,Zn-3Sn合金和HA+β-TCP骨架之间未出现反应层.复合材料的压缩强度约为Zn-3Sn合金块体的3/4.复合材料在模拟体液中的腐蚀速率略高于Zn-3Sn合金块体的,表面腐蚀产物主要是Zn(OH)2.复合材料的溶血率低于Zn-3Sn合金块体的,具有较好的血液相容性.
Microstructure and properties of biodegradable co-continuous (HA+β-TCP)/Zn-3Sn composite fabricated by vacuum casting-infiltration technique
The co-continuous (HA+β-TCP)/Zn-3Sn composite was fabricated via vacuum casting-infiltration method. The microstructure, mechanical properties, corrosion behaviors, and hemolysis ratio of the composite were studied by scanning electron microscope, X-ray diffractometer, mechanical testing, electrochemical test, immersion test, and ultraviolet spectrophotometry. The results indicate that Zn-3Sn alloy infiltrated into porous HA+β-TCP scaffold, which resulted in the formation of a compact (HA+β-TCP)/Zn-3Sn co-continuous composite, without any reaction layer between the Zn-3Sn alloy and the HA+β-TCP scaffold. The compressive strength of the composite was equal to about 3/4 that of Zn-3Sn alloy bulk. The corrosion rate of composite in simulated body fluid solution was slightly higher than that of Zn-3Sn alloy bulk. The main corrosion product on the composite surface was Zn(OH)2. The hemolysis rate of the composite was lower than that of Zn–3Sn alloy bulk and exhibited superior blood compatibility.

co-continuous (HA+β-TCP)/Zn-3Sn compositemicrostructuremechanical propertiescorrosion behaviorhemolysis rate

颜廷亮、王香、范金龙、聂其东

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哈尔滨工程大学超轻材料与表面技术教育部重点实验室,哈尔滨150001

(HA+β-TCP)/Zn-3Sn相互连续复合材料 显微组织 力学性能 腐蚀行为 溶血率

National Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities,China

511010393072020CFT0702

2021

10.1016/S1003-6326(21)65716-3

中国有色金属学报(英文版)
中国有色金属学会

中国有色金属学报(英文版)

CSTPCDCSCDSCI
影响因子：1.183
ISSN：1003-6326
年,卷(期)：2021.31(10)
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