Meirong Cai

A Robust and Lubricating Hydrogel through a High‐Energy‐Storage and Low‐Dissipative Network Design

Changmin Qi, Yulong Ji, Weiyi Zhao, Yunlei Zhang et autres

ABSTRACT Hydrogels are promising joint‐lubrication materials because of their similarity to cartilage. However, most tough hydrogels rely on sacrificial bonds or dissipative networks to improve mechanical strength. These mechanisms inevitably introduce additional bulk energy dissipation during friction, compromising low‐friction performance. Here, a …

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Diethanolamine Phenylborate-Containing Polymer Micelles as Green Lubricant Additives for Enhanced Load-Bearing Capacity

Qian Guo, Jiapeng He, Yi Gong, Zhiqi Feng et autres

Abstract Adverse friction and wear between moving mechanical parts create safety risks by dissipating substantial energy and causing mechanical failure. The most common method for reducing friction and wear and improving energy efficiency is the lubrication of mechanical parts. However, conventional sulfur- …

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Biodegradable multifunctional choline-amino acid-based ionic liquids additives enabling green water-based lubrication

Chongyun Sun, Xiao Liu, Jing Yang, Xuemin Sun et autres

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Green Ionic Polymer Additives for Multifunctional Integration in Water‐Based Lubrication Systems: Lubricity, Anti‐Corrosion and Viscosity‐Enhancing Properties

Hailong Qiao, Yurong Wang, Q Chen, Pingxia Guo et autres

ABSTRACT Environmentally benign water‐based lubricants are attracting increasing attention as alternatives to conventional oil‐based lubricants that may cause environmental pollution. Herein, three protic poly(ionic liquid)s (PPILs) are synthesized by combining a copolymeric cation with carboxylate anions of different alkyl chain lengths. The …

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A well balance of environment compatibility and unique lubricant performance achieved by borate based ionic liquids

Yi Xie, De-quan Wei, Hao-Zhe Xu, Ao Xie et autres

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Fast Ions, Ordered Layers: Chain-Length Control of Ionic-Liquid Layering on Graphite

Muqiu Wu, Ziyi Wang, Zhongyang Dai, X Zhao et autres

extended interfacial layering remains insufficiently understood. Here, a structurally related series of ILs spanning approximate ion lengths from 0.64 to 2.9 nm was studied on highly oriented pyrolytic graphite to test whether chain-length-tuned mobility dictates interfacial ordering. Shortening the ions increases interfacial …

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Hydrogen-Bonded Supramolecular Hydrogel Grease: Unifying Thixotropy, Low-Friction, and Enhanced Water Retention for Sustainable Water Lubrication

Yaqiong Lu, Kun Zou, Xiao Liu, Rui Wang et autres

Compared with oil lubrication, water-based lubrication has attracted increasing attention owing to its low cost, ease of cleaning, and sustainability. However, the water-based lubricants suffer from inherent limitations, including low viscosity, inadequate lubricity, and susceptibility to metal corrosion. To address these challenges, …

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High-Load-Triggered Nanoscale Superlubricity in Long-Chain Borate Ionic Liquids

Muqiu Wu, Guobing Zhou, Renxi Le, Yi Xie et autres

Achieving nanoscale superlubricity with ionic liquids (ILs) in the absence of external fields or additives remains a major challenge in tribology. Here, we investigate the nanoscale friction of a homologous series of three borate-based ILs (denoted A4, A8, and A12) with a …

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Synergistic lubrication between micro-arc-oxidation porous wear-resistant layer and supramolecular oil-gel on titanium alloy surface

Xinyi Liu, Yanggang Lin, Zhenjun Peng, Jiaying Zhang et autres

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Crosslinked poly(ionic liquid)s enabled with dication ionic liquid moieties: adaptable lubricant performance under severe and electric field conditions

Jian Qin, Qiang Chen, Lin Fan, Shuyan Yang et autres

Three dual-cation polymeric ionic liquids were prepared and exhibited unique viscosity–temperature performance, friction and wear reduction properties when utilized as multifunctional lubricant additives for 500SN.

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Selectively Breaking Bicontinuous Microphase Confinement for Sustainable and Unprecedented Superlubricating Hydrogels

Changmin Qi, Yunlei Zhang, Jie Tang, Yunsong Kong et autres

Conventional lubricating hydrogels struggle to simultaneously achieve excellent mechanical strength and interfacial lubrication due to the bulk and surface homogeneity. To address this, we developed a hydrogel with superior lubrication and load-bearing performance by selectively breaking bicontinuous microphase confinement on the hydrogel …

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Tailorable ionic liquids as advanced lubricant additives: From molecular design to engineering applications

Xiao Liu, Qiangliang Yu, Meirong Cai, Feng Zhou et autres

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