邓迟,杨晓兵,鲁雄,周绍兵,屈树新,翁杰.羟基磷灰石／聚己内酯复合材料的溶液共混制备与力学性能研究[J].表面技术,2008,37(2):14-15,49.
DENG Chi,YANG Xiao-bing,LU Xiong,ZHOU zhao-bing,QU Shu_xin,WENG Jie.Solution-Co-blending Preparation and Mechanical Properties of Hydro-apatite/Polycaprolactone Composite Biomaterials[J].Surface Technology,2008,37(2):14-15,49 |
| 羟基磷灰石／聚己内酯复合材料的溶液共混制备与力学性能研究 |
| Solution-Co-blending Preparation and Mechanical Properties of Hydro-apatite/Polycaprolactone Composite Biomaterials |
| 投稿时间：2007-12-18 修订日期：2008-04-10 |
| DOI： |
| 中文关键词: 溶液共混 热压 复合材料 力学性能 |
| 英文关键词:Solution co-blending Hot-pressing Composite Mechanical properties |
| 基金项目:教育部“跨世纪优秀人才培养计划”基金项目[教技函(2002)48号] |
|
|
| Author | Institution |
| DENG Chi | 1. Leshan Normal School, Leshan 610004, China;2. Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu 610031 , China |
| YANG Xiao-bing | Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu 610031 , China |
| LU Xiong | Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu 610031 , China |
| ZHOU zhao-bing | Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu 610031 , China |
| QU Shu_xin | Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu 610031 , China |
| WENG Jie | Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Chengdu 610031 , China |
|
| 摘要点击次数: |
| 全文下载次数: |
| 中文摘要: |
| 将羟基磷灰石(hydroxyapatite，HA)和聚己内酯(polycaprolactone，PCL)先分散到N，N-_甲基乙酰胺(DMAC)有机溶剂中，在600C温度下不断搅拌，缓慢去除有机分散剂，干燥后打碎共混物，放入模具中在1200C热压，获得HA/PCL复合材料薄膜。红外光谱( FTIR)表征发现，HA/PCL复合材料的基本组成为HA和PCL，没有新的组成相出现，表明溶液共混处理属于物理混合，混合过程中没有产生新的组成。力学性能测试表明，溶液共混和热压制备方法能够增加HA与PCL的结合力，提高材料的弹性模量。HA与PCL的界面结合是机械性质的，微纳米尺度的HA填充相总体上易使HA/PCL复合材料脱落或松动，导致强度较低。另一方面，在本研究的制备工艺下，适当地控制HA的含量，微米级的HA能够明显地提高复合材料的屈服强度，使HA成为PCL基复合材料的增强相。 |
| 英文摘要: |
| Hydroxyapatite( HA) particles and Polycaprolactone ( PCL) , as two basic compositions of composite were firstly dispersed in N,N-Dimethylacetamide( DMAC) dispersant, and then the DMAC was by inches cleaned out by intensively stirring in 60'C . The mixture obtained including HA and PCL was fallen to pieces, and then pressed at 1200C in hot-pressing machine, finally, thin film of HA/PCL composite film was prepared. These results of FT-IR show that HA/PCL composite is made up of HA fillers and PCL matrix and no new chemical composition is found in as-preparation materials. Mechanical property testing illuminates that bonding strength between HA and PCL is enhanced and tensile modulus of HA/PCL composite is obviously improved. However, puny mechanical bonding between HA fillers and PCL matrix directly leads to lower yield stress, while that composite containing 200-/o HA fillers exhibites a higher strength. On the other hand, under the condition of effectively controlling HA contents in microstructure of composite film, HA filler can make maximum stress of PCL-matrix composite improve and become a buildup composition of composite. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
渝公网安备 50010702501715号