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Studies on (polytrimethylene terephthalate)/graphene oxide/f-MWCNT hybrid nanocomposites
Nanoscale Research Letters ( IF 5.5 ) Pub Date : 2024-01-30 , DOI: 10.1186/s11671-024-03966-1
Abjesh Prasad Rath 1, 2 , P Santhana Gopala Krishnan 3, 4 , Krishnan Kanny 2
Affiliation  

Natural resource-driven approaches to bioengineering plastics are being developed to compete in the automobiles, power, and other sectors. Polytrimethylene terephthalate (PTT) is a particular of them, and it was chosen for the current investigation to build an advanced nanocomposite material. Using a twin-screw micro compounder, injection moulded PTT/Graphene-Oxide (GO)/Carboxyl functionalized Multiwall Carbon nanotube (f-MWCNT) hybrid nanocomposites were prepared. The impact of GO and f-MWCNT reinforcement on the composite’s thermal and mechanical characteristics of hybrid nanocomposites was examined. GO was synthesized from the graphite powder by modified Hummer’s method and MWCNTs were functionalized using the concentrated sulfuric acid (H2SO4) and nitric acid (HNO3) with a volume ratio of 3:1 in an ultrasonic bath at room temperature. In all formulations, the investigation was done at a constant filler amount of 2 wt%. To understand the chemical interaction between PTT and nanofiller, Raman spectroscopy was used and to examine the state of dispersion, scanning electron microscopy (SEM) was systematically analysed. In comparison to pristine PTT, the water absorption, tensile strength, flexural strength and impact strength of hybrid nanocomposites were improved marginally. It was also observed that GO has more prominent in increasing the mechanical properties of the hybrid and f-MWCNT in thermal properties. The 3-D geometrical bridge between GO (2-D) and f-MWCNT (1-D) made the hybrid more dispersible and effective for different applications.



中文翻译:


(聚对苯二甲酸丙二醇酯)/氧化石墨烯/f-MWCNT杂化纳米复合材料的研究



自然资源驱动的生物工程塑料方法正在开发中,以在汽车、电力和其他领域竞争。聚对苯二甲酸丙二醇酯(PTT)是其中的一种,目前的研究选择它来构建先进的纳米复合材料。使用双螺杆微混炼机,制备了注塑PTT/氧化石墨烯(GO)/羧基功能化多壁碳纳米管(f-MWCNT)杂化纳米复合材料。研究了 GO 和 f-MWCNT 增强对杂化纳米复合材料的热性能和机械性能的影响。采用改进的Hummer法以石墨粉为原料合成GO,并在室温超声波浴中使用体积比为3:1的浓硫酸(H 2 SO 4 )和硝酸(HNO 3 )对多壁碳纳米管进行功能化。在所有配方中,研究都是在 2 wt% 的恒定填料量下进行的。为了了解 PTT 和纳米填料之间的化学相互作用,使用拉曼光谱并通过扫描电子显微镜 (SEM) 系统分析分散状态。与原始PTT相比,杂化纳米复合材料的吸水率、拉伸强度、弯曲强度和冲击强度略有提高。还观察到GO在提高杂化材料的机械性能方面更为突出,而f-MWCNT在热性能方面则更为突出。 GO (2-D) 和 f-MWCNT (1-D) 之间的 3-D 几何桥使混合物在不同的应用中更加分散和有效。

更新日期:2024-01-31
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