| 聚乳酸包覆磷酸钙粉末状复合材料的制备 |
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| 引用本文： | 吴景梅,方荣生,王传虎. 聚乳酸包覆磷酸钙粉末状复合材料的制备[J]. 化学推进剂与高分子材料, 2005, 3(6): 42-44 |
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| 作者姓名： | 吴景梅 方荣生 王传虎 |
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| 作者单位： | 蚌埠学院理学系,安徽,蚌埠,233030 |
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| 摘 要： | 采用O/W乳液溶剂挥发法,以不同的物质作为微球制备过程中的表面稳定剂,制备了聚乳酸包覆磷酸钙粉末状复合材料。讨论了搅拌速度、搅拌时间等因素对微球的影响,并对分散过程中的热力学进行了分析。实验结果表明最佳制备条件:搅拌速度800r/min,搅拌时间3h,油水相体积比1:100,聚乳酸质量浓度30g/L,乳化剂为Tween20。
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| 关 键 词： | 聚乳酸 磷酸钙 溶剂挥发法 微球 |
| 文章编号： | 1672-2191(2005)06-0042-03 |
| 修稿时间： | 2005-07-04 |
Preparation of the Powdered Composite Materials of Tricalcium Phosphate Coated With Polylactic Acid |
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| WU Jing-mei,FANG Rong-sheng,WANG Chuan-hu. Preparation of the Powdered Composite Materials of Tricalcium Phosphate Coated With Polylactic Acid[J]. Chemical Propellants & Polymeric Materials, 2005, 3(6): 42-44 |
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| Authors: | WU Jing-mei FANG Rong-sheng WANG Chuan-hu |
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| Abstract: | The powdered composite materials of β-TCP coated with polylactic acid are prepared by using different materials as the surface stabilizers in the preparation of microsphere via O/W emulsion solvent evaporation. The influence of stirring rate and stirring time on the microsphere is discussed. The thermodynamics in the dispersion process is analysed.The experimental results show that the best technical conditions are the stirring rate of medium speed(800r/min),stirring time of 3h,volume ratio of oil to water of 1:100, polylactic acid mass concentration of 30g/L and emulsifying agent Tween 20. |
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| Keywords: | polylactic acid tricalcium phosphate solvent evaporation microsphere |
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