功率对类金刚石碳膜改性丁腈橡胶摩擦学和力学性能的影响

IF 2.7 4区 材料科学 Q3 CHEMISTRY, PHYSICAL Surface Innovations Pub Date : 2023-09-04 DOI:10.1680/jsuin.23.00028
Changxin Han, Jiaqi Liu, Huatang Cao, T. Yang, Zhiyu Wu, Qiaoyuan Deng, Feng Wen
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引用次数: 0

摘要

本研究旨在通过直流磁控溅射(DC-MS)沉积类金刚石(DLC)薄膜,提高丁腈橡胶(NBR)的耐磨性,这是一种简单而经济的技术。DC-MS是一种使用直流电产生电场并将导电材料从目标溅射到基板的涂层工艺。磁场可以提高等离子体密度和溅射速率。研究了DLC的结合力、表面形貌、摩擦学性能和机械强度。利用扫描电镜、拉曼光谱和x射线光电子能谱对DLC薄膜和NBR衬底的横截面形貌、结构特征和化学键种类进行了表征。纳米压痕实验结果表明,不同功率对硬度和杨氏模量没有显著影响。在环境条件下使用球盘摩擦计进行摩擦学测试,固定载荷为0.3 N。结果表明,DLC薄膜的功率影响其摩擦学性能。具体来说,在120w下制备的DLC薄膜表现出优异的摩擦学性能,在测试持续时间内保持稳定的摩擦系数(CoF)低于0.2。这些发现对其应用具有重要意义。
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Effects of power on tribological and mechanical properties of diamond-like carbon film modified nitrile butadiene rubber
This study aims to improve the wear resistance of nitrile butadiene rubber (NBR) by depositing diamond-like carbon (DLC) films using Direct Current Magnetron Sputtering (DC-MS), a simple and cost-effective technique. DC-MS is a coating process that uses a direct current to generate an electric field and sputter conductive materials from a target to a substrate. A magnetic field enhances the plasma density and sputtering rate. The study examines the bonding force, surface morphology, tribological properties, and mechanical strength of DLC. Scanning electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy are used to characterize the cross-sectional morphology, structural features, and chemical bonding species of DLC films and NBR substrates. Nanoindentation results show that varying the power has no significant effect on hardness and Young’s modulus. Tribological tests are conducted under ambient conditions using a ball-and-disk tribometer, with a fixed load of 0.3 N. Results indicate that the power of DLC films influences their tribological properties. Specifically, DLC films prepared at 120 W exhibit superior tribological properties, maintaining a stable coefficient of friction (CoF) below 0.2 for the test duration. These findings have promising implications for their application.
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来源期刊
Surface Innovations
Surface Innovations CHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
5.80
自引率
22.90%
发文量
66
期刊介绍: The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace. Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.
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