A novel UHMWPE composite with low friction coefficient for long-term ice sliding

IF 6.3 1区工程技术 Q1 ENGINEERING, MECHANICAL

Friction Pub Date : 2024-08-15 DOI:10.1007/s40544-024-0891-6

Yacong Hou, Lei Chen, Zheng Zhang, Jinlin Chang, Ding Weng, Yuan Ma, Jiadao Wang

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引用次数: 0

Abstract

Low friction ice sliding interfaces were critical for ski performance optimization. Traditional fluorinated ski waxes have attracted considerable attention for enhancing the hydrophobicity, anti-wearing, and oxidation resistance of ski-ice base. However, the toxicity and complexity of the waxing process limited batch manufacturing of low-cost and non-toxic ski-ice base, what is more, the wax covering on the base wore and failed during skiing due to the friction between ski and ice. Herein, we demonstrated a novel ultra-high molecular weight polyethylene (UHMWPE) composite that could maintain a low coefficient of friction (COF) with about 0.026 for at least 160 min when skiing on the ice. Microcapsule (MS) could release liquid (liquid paraffin (LP)). The released LP further enhanced the hydrophobicity of UHMWPE’s surfaces when friction occurred, which would maintain the stability and durability of the water film, and achieved superior and long-lasting friction resistance. Compared with other microcapsules with lower hydrophobic core, microcapsules with LP performed the best in reducing the friction of ski base from 0.126 to 0.024. Meanwhile, the COF of the surface kept at about 0.02 even after 12 rapid temperature changes. The presented UHMWPE composite of encapsulated liquids showed great potential and broad application owing to its simplicity and efficiency in winter sports.

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一种新型超高分子量聚乙烯复合材料，摩擦系数低，适用于长期冰面滑动

低摩擦冰面滑动界面对于滑雪性能的优化至关重要。传统的含氟滑雪蜡在增强滑雪冰基的疏水性、抗磨损性和抗氧化性方面引起了广泛关注。然而，打蜡工艺的毒性和复杂性限制了低成本、无毒滑雪冰基的批量生产，而且在滑雪过程中，由于滑雪板与冰面之间的摩擦，冰基上的覆盖蜡会磨损和失效。在此，我们展示了一种新型超高分子量聚乙烯（UHMWPE）复合材料，它能在冰上滑雪时保持约 0.026 的低摩擦系数（COF）至少 160 分钟。微胶囊（MS）可释放液体（液体石蜡（LP））。释放出的 LP 进一步增强了超高分子量聚乙烯表面在发生摩擦时的疏水性，从而保持了水膜的稳定性和持久性，实现了卓越而持久的耐摩擦性。与其他疏水性较低的微胶囊相比，含有 LP 的微胶囊在将滑雪板底座的摩擦力从 0.126 降低到 0.024 方面表现最佳。同时，即使经过 12 次温度急剧变化，表面的 COF 值仍保持在 0.02 左右。由于其简易性和高效性，所提出的超高分子量聚乙烯封装液体复合材料在冬季运动中显示出巨大的潜力和广泛的应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Friction Engineering-Mechanical Engineering

CiteScore

12.90

自引率

13.20%

发文量

324

审稿时长

13 weeks

期刊介绍： Friction is a peer-reviewed international journal for the publication of theoretical and experimental research works related to the friction, lubrication and wear. Original, high quality research papers and review articles on all aspects of tribology are welcome, including, but are not limited to, a variety of topics, such as: Friction: Origin of friction, Friction theories, New phenomena of friction, Nano-friction, Ultra-low friction, Molecular friction, Ultra-high friction, Friction at high speed, Friction at high temperature or low temperature, Friction at solid/liquid interfaces, Bio-friction, Adhesion, etc. Lubrication: Superlubricity, Green lubricants, Nano-lubrication, Boundary lubrication, Thin film lubrication, Elastohydrodynamic lubrication, Mixed lubrication, New lubricants, New additives, Gas lubrication, Solid lubrication, etc. Wear: Wear materials, Wear mechanism, Wear models, Wear in severe conditions, Wear measurement, Wear monitoring, etc. Surface Engineering: Surface texturing, Molecular films, Surface coatings, Surface modification, Bionic surfaces, etc. Basic Sciences: Tribology system, Principles of tribology, Thermodynamics of tribo-systems, Micro-fluidics, Thermal stability of tribo-systems, etc. Friction is an open access journal. It is published quarterly by Tsinghua University Press and Springer, and sponsored by the State Key Laboratory of Tribology (TsinghuaUniversity) and the Tribology Institute of Chinese Mechanical Engineering Society.