| 纳米羟基磷灰石/聚乳酸复合材料力学性能 |
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| 引用本文： | 陈清宇,翁杰.纳米羟基磷灰石/聚乳酸复合材料力学性能[J].化工新型材料,2007,35(10):80-81. |
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| 作者姓名： | 陈清宇 翁杰 |
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| 作者单位： | 1. 九江学院材料科学与工程学院,九江,332005
2. 西南交通大学材料科学与工程学院,成都,610031 |
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| 摘 要： | 将纳米羟基磷灰石(n-HA)和聚乳酸(PUA)在溶剂中混合,干燥后再采用热压成型工艺制备n-HA/PLLA复合材料.制备过程中n-HA采用F-127和PEG改性处理.拉伸实验发现:n-HA加入PLLA基体中,能提高PLLA的塑性;PEG改性n-HA与PLLA复合力学性能较好,PEG可以改善HA的分散性.扫描电镜图片显示:与PLLA比较,PEG改性n-HA/PLLA复合材料的断裂为韧性断裂,PLLA的断裂接近脆性断裂.
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| 关 键 词： | 纳米羟基磷灰石 聚乳酸 复合材料 |
| 修稿时间： | 2007年6月14日 |
Mechanical properties of composites of polylactide with nano-hydroxyapatite |
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| Chen Qingyu,Weng Jie.Mechanical properties of composites of polylactide with nano-hydroxyapatite[J].New Chemical Materials,2007,35(10):80-81. |
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| Authors: | Chen Qingyu Weng Jie |
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| Abstract: | Nano-hydroxyapatite(n-HA) and polyl-lactide(PLLA) were mixed in solvent.Through hot pressing process,dry mixtures were made into n-HA/PLLA composites.During above processes,n-HA were modified by F-127 and PEG.Tensile testing showed that the Plasticity of PLLA was enhanced through add n-HA into PLLA. The mechanical properties of composites of n-HA modified by PEG with PLLA(PEG-n-HA/PLLA) were better.The dispersion of n-HA was improved by PEG.SEM photo showed that the crack of PEG-n-HA/PLLA composites was ductile fracture and that of PLLA was nearly brittle fracture. |
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| Keywords: | nano-hydroxyapatite polylactide composite |
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