| 碳酸氢铵和聚乙烯醇复合造孔制备多孔陶瓷及其性能研究 |
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| 引用本文： | 王崧全,张德坤,张劲松.碳酸氢铵和聚乙烯醇复合造孔制备多孔陶瓷及其性能研究[J].材料导报,2010,24(10). |
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| 作者姓名： | 王崧全 张德坤 张劲松 |
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| 作者单位： | 中国矿业大学材料科学与工程学院,徐州,221116;中国矿业大学材料科学与工程学院,徐州,221116;中国矿业大学材料科学与工程学院,徐州,221116 |
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| 基金项目： | 教育部新世纪优秀人才支持计划，江苏省自然科学基金 |
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| 摘 要： | 以羟基磷灰石(HA)为基体,采用添加NH4HCO3晶粒并加热去除的方法制备多孔羟基磷灰石(HA)陶瓷,制备过程中同时加入一定量的生物玻璃来增加其强度,添加一定量的聚乙烯醇(PVA)来提高其结合性能和改善贯通性.对制备的多孔生物陶瓷试样进行硬度和抗压强度试验,讨论不同组分对其性能的影响规律,采用扫描电镜对多孔陶瓷试样的微观结构进行分析.结果表明,随着NH4HCO3含量的增加,多孔生物陶瓷试样的孔隙率和硬度增加,抗压强度下降,孔径约为200～300μm;随着PVA含量的增加,试样孔隙率增大,贯通性增强,孔道长度约为1～3mm,孔径在100μm以下;随着生物玻璃含量的增加,试样的体积收缩明显,微孔增多.
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| 关 键 词： | 多孔陶瓷 孔隙率 力学性能 微观形貌 |
Research on the Preparation and Properties of Porous Bioceramics Using Ammonium Bicarbonate and Polyvinyl Alcohol as Pore-creating Agents |
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| WANG Songquan,ZHANG Dekun,ZHANG Jinsong.Research on the Preparation and Properties of Porous Bioceramics Using Ammonium Bicarbonate and Polyvinyl Alcohol as Pore-creating Agents[J].Materials Review,2010,24(10). |
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| Authors: | WANG Songquan ZHANG Dekun ZHANG Jinsong |
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| Affiliation: | WANG Songquan,ZHANG Dekun,ZHANG Jinsong (School of Materials Science , Engineering,China University of Mining , Technology,Xuzhou 221116) |
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| Abstract: | Porous bio-ceramics are prepared through adding NH4HCO3 grains into hydroxyapatite and then removed by heating method. The strength of bio-ceramics samples increase due to add a certain amount of bioactive glass. Polyvinyl alcohol(PVA) is added to improve the binding quality and penetration properties of bio-ceramics. Hardness and compression strength of different samples are measured to analysis the effect of different additive. Their microstructures are observed by scanning electron microscope(SEM). The r... |
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| Keywords: | porous ceramic pore ratio mechanics performance microcosmic appearance |
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