为综合聚乳酸(PLA)和聚己内酯(PCL)的性能,将PLA和PCL原料进行熔融共混挤出造粒,再利用溶液浇铸的方法制备不同比例的PLA/PCL共混膜,并对其性能进行一系列的表征和讨论.研究结果表明,PLA与PCL可以以一定比例共混并浇铸成膜.共混膜的红外光谱中没有出现新的特征峰,说明两者共混过程中没有发生化学反应.共混膜的DSC曲线及扫描电镜图表明,PLA与PCL是不相容体系.接触角测试表明,共混膜具有比纯PLA膜和纯PCL膜更好的水润湿性.力学性能测试表明,PLA/PCL共混膜可以克服单一材料力学性能上的缺陷.
参考文献
| [1] | J. E. Sanders;S. D. Bale;T. Neumann .Tissue response to microfibers of different polymers: Polyester, polyethylene, polylactic acid, and polyurethane[J].Journal of biomedical materials research, Part B. Applied biomaterials,2002(2):222-227. |
| [2] | 沈兆宏 .生物降解塑料聚乳酸的结晶改性研究[D].浙江工业大学,2008. |
| [3] | Ramiro Dell'Erba;Mario Malinconico;Giovanni Maglio;Anna Migliozzi .Immiscible polymer blends of semicrystalline biocompatible components:thermal properties and phase morphology analysis of PLLA/PCL blends[J].Polymer: The International Journal for the Science and Technology of Polymers,2001(18):7831-7840. |
| [4] | 王向冰,杨革生,胡学超,邵惠丽.聚乳酸熔融法纺丝原料选择的研究[J].合成纤维,2005(11):1-5. |
| [5] | ZhaoBin Qiu;Motonori Komura;Takayuki Ikehara;Toshio Nishi .Miscibility and crystallization behavior of biodegradable blends of two aliphatic polyesters.Poly(butylene succinate)and Poly(epsilon-caprolactone)[J].Polymer: The International Journal for the Science and Technology of Polymers,2003(25):7749-7756. |
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