| 聚（氯乙烯-醋酸乙烯酯）与热塑性聚氨酯的
相容性及其共混膜的氧化稳定性 |
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| 引用本文： | 刘操,胡春圃.聚（氯乙烯-醋酸乙烯酯）与热塑性聚氨酯的
相容性及其共混膜的氧化稳定性[J].医学教育探索,2009(2):130-136. |
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| 作者姓名： | 刘操 胡春圃 |
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| 作者单位： | 华东理工大学材料科学与工程学院;华东理工大学材料科学与工程学院 |
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| 摘 要： | 采用溶液法制备了聚（氯乙烯-醋酸乙烯酯）（PVCAc）与热塑性聚醚型聚氨酯(TPU)的共混膜(PUV)。通过FT-IR和DSC对膜的形态和相容性进行了研究。与聚氯乙烯(PVC)相比，PVCAc与TPU的相容性明显增强。将PUV膜浸没于H2O2-CoCl2溶液中25 d进行加速氧化实验，结果表明：PUV膜的氧化稳定性优于TPU和TPU/PVC的共混膜(PUC)。此外，PUV膜的力学性能明显高于PUC膜。
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| 关 键 词： | 热塑性聚氨酯 氧化稳定性 氢键 相容性 |
| 收稿时间： | 2008/12/24 0:00:00 |
Miscibility and Oxidative Stability of Polyether Based Thermoplastic
Polyurethane and Poly (vinyl chloride-co-vinyl acetate) Blend Films |
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| Abstract: | Poly(vinyl chloride-co-vinyl acetate) (PVCAc) / thermoplastic polyether polyurethane (TPU) blend films (PUV) were prepared via solution casting. The morphology and miscibility of PUV films were studied by FT-IR and DSC. Results show that PVCAc is more miscible with TPU than poly(vinyl chloride). Accelerated oxidation test was carried out by immersing the blend films in H2O2-CoCl2 solution for 25 d. The oxidative stability of PUV films is significantly enhanced in comparison to that of TPU and TPU/PVC blend films (PUC).Furthermore, the mechanical properties of PUV films are higher than those of PUC films. |
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