Impact modification of poly(trimethylene terephthalate)/polypropylene blend nanocomposites: Fabrication and characterization
Impact modification of poly(trimethylene terephthalate)/polypropylene blend nanocomposites: Fabrication and characterization
复制标题
聚对苯二甲酸丙二醇酯/聚丙烯共混纳米复合材料的抗冲改性：制造和表征
DOI：
10.1002/app.33106
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
B. P. Panda
中科院分区：
文献类型：
--
作者：
D. Upadhyay;S. Mohanty;S. Nayak;M. R. Parvaiz;B. P. Panda
制备了聚对苯二甲酸丙二醇酯（PTT）/聚丙烯（PP）共混物和纳米复合材料，研究了相容剂前体马来酸酐接枝聚丙烯（MAPP）对PTT/PP共混物和纳米复合材料性能的影响。在间歇式混合机中熔融共混期间，使用反应性路线通过添加MAPP来进行增容。有机改性的纳米粘土被用作纳米增强体，以制备共混纳米复合材料。力学测试表明，在PTT/PP共混比为80：20时，性能最佳。此外，掺入纳米粘土高达3重量%，表现出更高的冲击强度和更高的拉伸强度和模量的共混物纳米复合材料相比，优化的共混物。通过X射线衍射和透射电子显微镜（TEM）的纳米复合材料的形成。用差示扫描量热法（DSC）和热重分析（TGA）进行热测量。DSC热分析图显示，在含有Cloclane 30 B的共混体系中存在纳米粘土的情况下，结晶温度增加。热重分析结果也表明，共混物的热稳定性随着Cloprotein 30 B的加入而提高。此外，动态力学分析测量结果表明，与其他纳米复合材料相比，Cloprotein 30 B纳米复合材料具有最大模量。TEM显微照片证实了在共混物纳米复合材料的插层形态。© 2010 Wiley Periodicals，Inc.应用聚合物科学杂志，2011年
A poly(trimethylene terephthalate) (PTT)/polypropylene (PP) blend and the nanocomposites were prepared with and without the addition of a compatibilizer precursor [maleic anhydride grafted polypropylene (MAPP)]. A reactive route was used for the compatibilization with the addition of MAPP during melt blending in a batch mixer. Organically modified nanoclays were used as nanoscale reinforcements to prepare the blend nanocomposites. Mechanical tests revealed optimum performance characteristics at a PTT/PP blend ratio of 80 : 20. Furthermore, incorporation of nanoclays up to 3 wt % showed a higher impact strength and higher tensile strength and modulus in the blend nanocomposites compared to the optimized blend. The nanocomposite formation was established through X-ray diffraction and transmission electron microscopy (TEM). Thermal measurements were carried out with differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). DSC thermograms revealed an increase in the crystallization temperature in the presence of the nanoclays in the blend system containing Cloisite 30B. TGA thermograms also indicated that the thermal stability of blend increased with the incorporation of Cloisite 30B. Furthermore, dynamic mechanical analysis measurements showed that the Cloisite 30B nanocomposite had the maximum modulus compared to other nanocomposites. TEM micrographs confirmed an intercalated morphology in the blend nanocomposites. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011