| 聚D,L-丙交酯选用增塑剂对外增塑影响的研究 |
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| 引用本文： | 史晓林,谢怀勤,张艳红,张贞浴. 聚D,L-丙交酯选用增塑剂对外增塑影响的研究[J]. 哈尔滨工业大学学报, 2001, 33(6): 789-790,795 |
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| 作者姓名： | 史晓林 谢怀勤 张艳红 张贞浴 |
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| 作者单位： | 1. 哈尔滨工业大学材料科学与工程学院,
2. 黑龙江大学化学化工学院, |
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| 基金项目： | 黑龙江省科技攻关项目 (G96A -2 ) |
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| 摘 要： | 研究可体内降解材料D，L－丙交酯选用外增塑剂以改善力学性能，增大降解速度，采用聚丙交酯的熔融增塑法，用高分子万能测试机测试试样的拉伸应力和断裂伸长率，并由此计算试样的弹性模量。结果用柠檬酸三丁酯做聚丙交酯的外增塑剂，较其他四种增塑剂有明显的医用降解材料的优势，具有较高的柔韧性，增塑的聚丙交酯可做食品医用降解材料。
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| 关 键 词： | 聚D L－丙交酯 增塑剂 降解 共混 人体手术 功能材料 医用材料 |
| 文章编号： | 0367-6234(2001)06-0789-02 |
Study of blending polymer of poly -D, L -dilatide with plasticizer |
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| SHI Xiao lin ,,XIE Huai qin ,ZHANG Yan hong ,ZHANG Zhen yu. Study of blending polymer of poly -D, L -dilatide with plasticizer[J]. Journal of Harbin Institute of Technology, 2001, 33(6): 789-790,795 |
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| Authors: | SHI Xiao lin XIE Huai qin ZHANG Yan hong ZHANG Zhen yu |
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| Affiliation: | SHI Xiao lin 1,2,XIE Huai qin 1,ZHANG Yan hong 3,ZHANG Zhen yu 3 |
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| Abstract: | In order to study D.l lactide which can be decomposed in body, an outside plasticizer was used to mprove its mechanical properties and enhance its decomposing speed.The plasticity was improved by melting polymeric lactide, and the stretch stress and stretch ratio of samples were tested with an almighty macromolecule testing machine. In addition, the plastic modulus of samples were computed from test results. It is showed that Tri-n-butyl citrate is the most suitable plasticizers of polymeric lactide. As one of the outside plasticizers for ploymeric lactide,Tri-n-buty1 cituate is far better than the other four plasticizers. Moreover, it has higher intensity and flexility. Plasticized polymeric lactide may be widely used as decomposable material for medical use. |
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| Keywords: | mechanical property external plasticizer degradation rate poly-D L-dilactide |
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