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首页> 外文会议>International Conference on Multi-functional Materials and Structures >Characterization and Properties of Nucleated Polylactide, Poly(butylene adipate-co-terephthalate), and Thermoplastic Starch Ternary Blend Films: Effects of Compatibilizer and Starch
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Characterization and Properties of Nucleated Polylactide, Poly(butylene adipate-co-terephthalate), and Thermoplastic Starch Ternary Blend Films: Effects of Compatibilizer and Starch

机译：核聚氯酸酯的表征和性能，聚（丁烯己二酸丁二醇酯），热塑性淀粉三元共混膜：增容剂和淀粉的作用

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Biodegradable ternary blend films of nucleated polylactide (PLA), poly(butylene adipate-co-terephthalate) (PBAT), and thermoplastic starch (TPS) with the presence of nucleating agent and compatibilizer were prepared via a twin screw extruder. The effects of compatibilizer types and starch contents on the thermal, morphological, and tensile properties of these blend films were evaluated. Two types of compatibilizer (methylene diphenyldiisocyanate (MDI) and polylactide-graft-maleic anhydride (PLA-g-MA)) were used for enhancing an interfacial adhesion of the blends, whereas TPS from tapioca starch was added as a filler at various concentrations (0 to 40 wt%). In addition, talc and PBAT acted as a nucleating agent and a flexible polymer were fixed at 1 phr and 10 wt%, respectively. The results indicated that the thermal stability of the blend films was affected from the presence of compatibilizer and TPS. In addition, the tensile properties and compatibility of PLA, PBAT, and TPS blends were improved with the addition of compatibilizer compared to uncompatibilized blend films as evidenced by SEM results. Furthermore, the blend films with MDI gave higher mechanical properties than those with PLA-g-MA at all compositions. The water absorption of the ternary blend films was evidently increased when the TPS amount was increased; in contrast, tensile strength and elongation at break (EB) of these blend films were significantly decreased.
机译：通过双螺杆挤出机制备核聚氯酸酯（PLA），聚（丁二酸酯 - 对苯二甲酸酯）（PBAT）和热塑性淀粉（TPS）和热塑性淀粉（TPS）的可生物降解的三元共混膜。通过双螺杆挤出机制备核酸剂和增容剂。评估了增容剂类型和淀粉内容物对这些共混膜的热，形态学和拉伸性能的影响。两种类型的增容剂（亚甲基二苯基二异氰酸酯（MDI）和聚乳糖 - 移植物 - 马来酸酐（PLA-G-MA）用于增强共混物的界面粘附，而来自烟草淀粉的TPS以各种浓度加入填料（ 0至40％wt％）。另外，滑石和PBAT作为成核剂和柔性聚合物分别以1phr和10wt％固定。结果表明共混膜的热稳定性受到相容剂和TPS的存在影响。另外，与通过SEM结果证明的未致粘合的共混膜相比，加入增容剂，改善了PLA，PBAT和TPS共混物的拉伸性能和相容性。此外，具有MDI的共混膜比所有组合物的PLA-G-MA具有更高的机械性能。当TPS含量增加时，三元共混膜的吸水显着增加;相反，这些共混膜的断裂强度和伸长率（Eb）显着降低。

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