Micro Scratch Behavior Study of Titanium Dioxide and Graphene Nanoplatelets Reinforced Polymer Nanocomposites

IF 1 4区化学 Q4 POLYMER SCIENCE Polymer Science, Series B Pub Date : 2024-02-09 DOI:10.1134/s1560090423600298

Shubham, Susmita Naskar, Bankim Chandra Ray

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Abstract

Efficiency and maintenance reduction in polymer nanocomposites are critical objectives for engineers and scientists to have an optimized machine component design. A crucial factor in achieving these goals is scratch resistance, which necessitates careful reinforcement selection for polymer composites. In this study, the individual nanofillers titanium dioxide (TiO₂) and graphene nanoplatelets (GnP) were morphologically characterized using electron microscopes, and molecular bonds analysis of epoxy-based hybrid nanocomposites was conducted using Fourier transform infrared (FTIR) spectroscopy. The amount of TiO₂ was kept constant at 2 phr (parts per resin) by weight, and GnP was varied as 0, 1, and 2 phr in the samples along with neat epoxy. A scratch adhesion test was performed, applying a constant and progressive load. The results indicate that an optimal combination of TiO₂ and GnP nanoparticles can enhance the scratch resistance properties of epoxy, as evidenced by favorable coefficients of friction (CoF) and scratch depths. Furthermore, optical and field emission scanning electron microscopes (FESEM) were employed to investigate scratch deformation in the nanocomposite samples. This article comprehensively reviews relevant literature, experimental details, significant findings, and a comparative analysis of scratch conditions in hybrid nanocomposites.

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二氧化钛和石墨烯纳米片增强聚合物纳米复合材料的微划痕行为研究

摘要聚合物纳米复合材料的效率和减少维护是工程师和科学家优化机器部件设计的关键目标。实现这些目标的一个关键因素是抗划伤性，这就要求对聚合物复合材料的增强材料进行仔细选择。在本研究中，使用电子显微镜对二氧化钛（TiO2）和石墨烯纳米片（GnP）进行了形貌表征，并使用傅立叶变换红外（FTIR）光谱对环氧基混合纳米复合材料进行了分子键分析。按重量计，TiO2 的用量保持不变，为 2 phr（每树脂份数），GnP 与纯环氧一起在样品中的用量分别为 0、1 和 2 phr。在施加恒定和渐进载荷的情况下，进行了划痕附着力测试。结果表明，TiO2 和 GnP 纳米粒子的最佳组合可以增强环氧树脂的抗划痕性能，这一点可以从良好的摩擦系数（CoF）和划痕深度得到证明。此外，还采用光学和场发射扫描电子显微镜（FESEM）研究了纳米复合材料样品的划痕变形。本文全面回顾了相关文献、实验细节、重要发现以及混合纳米复合材料划痕条件的对比分析。

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来源期刊

Polymer Science, Series B 化学-高分子科学

CiteScore

1.80

自引率

8.30%

发文量

审稿时长

>0 weeks

期刊介绍： Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed