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]
作者单位
邓迟 1.乐山师范学院,四川乐山610004;2.材料先进技术教育部重点实验室,四川成都610031 
杨晓兵 材料先进技术教育部重点实验室,四川成都610031 
鲁雄 材料先进技术教育部重点实验室,四川成都610031 
周绍兵 材料先进技术教育部重点实验室,四川成都610031 
屈树新 材料先进技术教育部重点实验室,四川成都610031 
翁杰 材料先进技术教育部重点实验室,四川成都610031 
AuthorInstitution
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 
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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.
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