| 核-壳式纳米Al2O3 / PS 复合粒子改性聚苯乙烯的选区激光烧结实验研究 |
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| 引用本文： | 郑海忠,张坚,鲁世强,徐志锋.核-壳式纳米Al2O3 / PS 复合粒子改性聚苯乙烯的选区激光烧结实验研究[J].复合材料学报,2006,23(1):63-68. |
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| 作者姓名： | 郑海忠 张坚 鲁世强 徐志锋 |
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| 作者单位： | 1.南昌航空工业学院材料科学与工程学院, 南昌 330034; |
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| 基金项目： | 江西省材料科学与工程中心基金（ZX200301020）;航空高等院校自选基金（EC200401021）;江西省自然科学基金（0550098） |
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| 摘 要： | 针对纳米粒子易团聚的特点, 利用乳液聚合方法制备纳米Al2O3 / PS 复合粒子。用TEM、FTIR 对复合粒子结构进行了表征。结果表明, 所制备的复合粒子具备以纳米氧化铝为核、以聚苯乙烯为壳的核2壳式结构, 而且包覆层厚度大约为10～20 nm。用复合粒子改性选区激光烧结制备聚苯乙烯基纳米复合材料, 通过SEM 和FE2SEM 研究纳米复合材料烧结体的显微结构, 发现纳米粒子较好地分散在聚合物基体中, 且纳米氧化铝与聚合物基体之间的界面相容性和粘结性较好, 烧结体结构较致密。
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| 关 键 词： | 核-壳结构 复合粒子 乳液聚合 选区激光烧结(SLS) 结构表征 |
| 文章编号： | 1000-3851（2006）01-0063-06 |
| 收稿时间： | 2005-03-09 |
| 修稿时间： | 2005-03-092005-06-20 |
Selective laser sintering of polystyrene modif ied by Al2O3 / PS compositeparticles with core2shell structure |
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| ZHENG Haizhong,ZHANG Jian,LU Shiqiang,XU Zhifeng.Selective laser sintering of polystyrene modif ied by Al2O3 / PS compositeparticles with core2shell structure[J].Acta Materiae Compositae Sinica,2006,23(1):63-68. |
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| Authors: | ZHENG Haizhong ZHANG Jian LU Shiqiang XU Zhifeng |
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| Affiliation: | 1.School of Materials Science and Engineering| Nanchang Institute of Aeronautical Technology| Nanchang 330034|China ;School of Materials Science and Technology| Nanjing University of Aeronautics and Ast ronautics|Nanjing 210016| China |
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| Abstract: | In order to prevent nano-particle aggregating , the nano-Al2O3 particle was covered with PS by emulsionpolymerization. The st ructure of the emulsion polymeric Al2O3 / PS composite particle was characterized by TEMand FTIR. The result s indicate that the Al2O3 / PS composite particles take an approximate ball shape and the particle consist s of centered core (Al2O3 ) and outer shell ( PS) , and the shell thickness is about 10～20nm. The st ructureof polystyrene modified by Al2O3 / PS composite particles af ter SLS was studied by SEM and FE-SEM , respectively.It is found that the nano2particles disperse in the mat rix well , and the interfacial compatibility and adhesion propertyare improved , and the density of the sintering body is increased. |
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| Keywords: | core-shell structure composite particles emulsion polymerization selective laser sintering(SLS) structure characterization |
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