Effects of Filled Nano-Al2O3 and Its Contents on Friction and Wear Properties of Hydrogenated Nitrile Butadiene Rubber

IF 2 4区工程技术 Q3 ENGINEERING, CHEMICAL

Advances in Polymer Technology Pub Date : 2024-06-06 DOI:10.1155/2024/5891303

Xinyang Tan, Zenghui Liu

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Abstract

A new hydrogenated nitrile butadiene rubber (HNBR) material filled with silane-modified nano-Al₂O₃ is developed in this work. Influence of the nano-Al₂O₃ and its contents on friction and wear performances of the HNBR materials is investigated. The nano-Al₂O₃ particles with different contents are added into the HNBR composites. Then, friction and wear tests are conducted using a pin-on-disk tribometer. Scanning electron microscope (SEM) is used to observe wear topography of the HNBR composite surfaces. Attenuated total reflection–Fourier transform infrared (ATR–FTIR) spectroscopy is used to investigate mechanism of nano-Al₂O₃ reinforcing HNBR. Results show that the filled nano-Al₂O₃ and its contents significantly affect friction and wear performances. Presence of the nano-Al₂O₃ obviously decreases friction coefficient and volume wear rate. Friction coefficient and volume wear rate of the composites reduce initially with the increase of nano-Al₂O₃ content and then increase with further increasing the nano-Al₂O₃ content. The HNBR material filled by the nano-Al₂O₃ with the content of 15 phr shows better antifriction and wear performances. SEM results indicate that the HNBR material filled by the nano-Al₂O₃ of 15 phr presents the best topography of wear surface compared with the HNBR materials filled by other nano-Al₂O₃ contents in this study. ATR–FTIR results show that mechanism of the nano-Al₂O₃ reinforcing HNBR for wear resistance is due to the graft reaction between the modified nano-Al₂O₃ and HNBR to form cross-linking networks around the Al₂O₃ nanoparticles, and self-polymerization of unsaturated groups on the surface of the nano-Al₂O₃ to form interpenetrating polymer networks with the HNBR molecular main chains.

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填充纳米 Al2O3 及其含量对氢化丁腈橡胶摩擦和磨损性能的影响

本研究开发了一种填充硅烷改性纳米 Al2O3 的新型氢化丁腈橡胶（HNBR）材料。研究了纳米 Al2O3 及其含量对氢化丁腈橡胶材料摩擦和磨损性能的影响。将不同含量的纳米 Al2O3 颗粒添加到 HNBR 复合材料中。然后使用针盘摩擦磨损试验机进行摩擦磨损试验。使用扫描电子显微镜（SEM）观察 HNBR 复合材料表面的磨损形貌。衰减全反射-傅立叶变换红外光谱（ATR-FTIR）用于研究纳米 Al2O3 增强 HNBR 的机理。结果表明，填充的纳米 Al2O3 及其含量对摩擦和磨损性能有显著影响。纳米 Al2O3 的存在明显降低了摩擦系数和体积磨损率。随着纳米 Al2O3 含量的增加，复合材料的摩擦系数和体积磨损率开始降低，然后随着纳米 Al2O3 含量的进一步增加而升高。纳米 Al2O3 含量为 15 phr 的 HNBR 材料具有更好的抗摩擦性和耐磨性。扫描电镜结果表明，与本研究中其他纳米氧化铝含量填充的 HNBR 材料相比，纳米氧化铝含量为 15 phr 的 HNBR 材料的磨损表面形貌最佳。ATR-FTIR 结果表明，纳米 Al2O3 增强 HNBR 材料耐磨性的机理是改性纳米 Al2O3 与 HNBR 发生接枝反应，在 Al2O3 纳米颗粒周围形成交联网络，以及纳米 Al2O3 表面的不饱和基团自聚，与 HNBR 分子主链形成互穿聚合物网络。

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来源期刊

Advances in Polymer Technology 工程技术-高分子科学

CiteScore

5.50

自引率

0.00%

发文量

审稿时长

9 months

期刊介绍： Advances in Polymer Technology publishes articles reporting important developments in polymeric materials, their manufacture and processing, and polymer product design, as well as those considering the economic and environmental impacts of polymer technology. The journal primarily caters to researchers, technologists, engineers, consultants, and production personnel.