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Study of Morphological and Mechanical Properties of PBT/PTT Blends and Their Nanocomposites and Their Correlation
Arabian Journal for Science and Engineering ( IF 2.6 ) Pub Date : 2018-07-10 , DOI: 10.1007/s13369-018-3424-7
Ranjana Sharma , Purnima Jain , Susmita Dey Sadhu
Arabian Journal for Science and Engineering ( IF 2.6 ) Pub Date : 2018-07-10 , DOI: 10.1007/s13369-018-3424-7
Ranjana Sharma , Purnima Jain , Susmita Dey Sadhu
Impact modified PBT/PTT blends based nanocomposites having organoclay content varying from 2, 3 and 5 wt% were prepared using corotating twin-screw extruder. Organoclay (Cloisite 30B) was used as nanofiller. Ultra-low-density polyethylene-grafted glycidyl methacrylate (ULDPE-g-GMA) was used as an impact modifier to toughen the polymeric matrices. In all the prepared nanocomposites, the amount of impact modifier (ULDPE-g-GMA) remains constant, i.e., 2 wt%. Izod impact testing showed that only 2 wt% impact modifier (ULDPE-g-GMA) was enough to improve the notched Izod impact strength of the neat PBT and neat PTT by 85.6 and 98.6 %, respectively. It shows an excellent toughening of PBT and PTT with ULDPE- g-GMA rubber. It was further found that the incorporation of only 3 wt% organoclay significantly improved the tensile strength, tensile modulus values of PBT/PTT blends. The result of FEG-SEM indicated that nanocomposite with 3 wt% organoclay in PBT/PTT/2wt% ULDPE-g-GMA did not show phase separation. It showed that 3 wt% organoclay was homogeneously dispersed in impact modified PBT/PTT blends based nanocomposites. POM studies revealed that the well-defined spherulites are present in neat PBT and neat PTT when \(T_{\mathrm{c}}\) was 205 \({^{\circ }}\)C.
中文翻译:
PBT / PTT共混物及其纳米复合材料的形貌和力学性能及其相关性的研究
使用同向旋转双螺杆挤出机制备有机粘土含量为2、3和5重量%的基于抗冲改性的PBT / PTT共混物的纳米复合材料。有机粘土(Cloisite 30B)用作纳米填料。使用超低密度聚乙烯接枝的甲基丙烯酸缩水甘油酯(ULDPE-g-GMA)作为抗冲改性剂,以增强聚合物基体的韧性。在所有制备的纳米复合物中,抗冲改性剂(ULDPE-g-GMA)的量保持恒定,即2重量%。艾佐德冲击试验表明,仅2重量%的抗冲改性剂(ULDPE-g-GMA)足以将纯PBT和纯PTT的缺口艾佐德冲击强度分别提高85.6%和98.6%。它显示了ULDPE-g-GMA橡胶对PBT和PTT的出色增韧。进一步发现,仅加入3 wt%的有机粘土可显着提高抗张强度,PBT / PTT共混物的拉伸模量值。FEG-SEM的结果表明在PBT / PTT / 2wt%的ULDPE-g-GMA中具有3wt%的有机粘土的纳米复合材料没有显示出相分离。结果表明,将3 wt%的有机粘土均匀分散在抗冲改性的PBT / PTT共混物基纳米复合材料中。POM研究表明,当纯PBT和纯PTT存在时,存在明确的球晶。\(T _ {\ mathrm {c}} \)为205 C ({^ {\ circ}} \) C。
更新日期:2018-07-10
中文翻译:
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PBT / PTT共混物及其纳米复合材料的形貌和力学性能及其相关性的研究
使用同向旋转双螺杆挤出机制备有机粘土含量为2、3和5重量%的基于抗冲改性的PBT / PTT共混物的纳米复合材料。有机粘土(Cloisite 30B)用作纳米填料。使用超低密度聚乙烯接枝的甲基丙烯酸缩水甘油酯(ULDPE-g-GMA)作为抗冲改性剂,以增强聚合物基体的韧性。在所有制备的纳米复合物中,抗冲改性剂(ULDPE-g-GMA)的量保持恒定,即2重量%。艾佐德冲击试验表明,仅2重量%的抗冲改性剂(ULDPE-g-GMA)足以将纯PBT和纯PTT的缺口艾佐德冲击强度分别提高85.6%和98.6%。它显示了ULDPE-g-GMA橡胶对PBT和PTT的出色增韧。进一步发现,仅加入3 wt%的有机粘土可显着提高抗张强度,PBT / PTT共混物的拉伸模量值。FEG-SEM的结果表明在PBT / PTT / 2wt%的ULDPE-g-GMA中具有3wt%的有机粘土的纳米复合材料没有显示出相分离。结果表明,将3 wt%的有机粘土均匀分散在抗冲改性的PBT / PTT共混物基纳米复合材料中。POM研究表明,当纯PBT和纯PTT存在时,存在明确的球晶。\(T _ {\ mathrm {c}} \)为205 C ({^ {\ circ}} \) C。