Surface modification of polysulfone/PAO40 microcapsules via polydopamine to improve thermal stability and used to prepare polyamide 6-based self-lubricating composite

Zhang, Wenli; Qi, Xiaowen; Li, Xiaolei; Dong, Yu; Yao, Weigang; Liu, Liang; Zhang, Yan

doi:10.1016/j.colsurfa.2021.126906

Cited by 9 publications

(19 citation statements)

References 38 publications

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“…As the friction continues, lubricating oil gradually forms a stable and continuous lubricating oil film on the wear track. [ 1,8,21 ] At the same time, lubricating oil is conducive to the formation of a thin and stable continuous transfer film on the corresponding shaft, which helps to further reduce friction and wear. [ 1 ] Under extreme conditions, the insufficient load‐bearing capacity and rapid peeling of the matrix limit the full impact from NMS.…”

Section: Resultsmentioning

confidence: 99%

“…[1][2][3] After continuous improvement and optimization, microencapsulation technologies have been greatly developed, leading to a trend of diverse preparation methods and multiple series of preparation materials. The synthesis methods include solvent evaporation, [4] interfacial polymerization, [5] in situ polymerization, [6] sol-gel, [7] surface modification, [8] multiple assembly, [9] and so forth. Shell materials comprise polymers, inorganics, metals, and organic/inorganic hybrid materials.…”

Section: Introductionmentioning

confidence: 99%

“…During the friction process, NMS ruptures under the action of mechanical extrusion and friction, releasing lubricating oil to the friction interface. As the friction continues, lubricating oil gradually forms a stable and continuous lubricating oil film on the wear track [1,8,21].…”

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confidence: 99%

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Effects of nickel shell microcapsules and short fibers on polyamide 6‐matrix composites: Thermal, surface wetting, mechanical, and tribological properties

Zhang

Yan

et al. 2022

Polymer Composites

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The excellent lubricating properties of microcapsules have been well recognized in modified polymers though very few reports have mentioned the practical application for engineering parts. In this study, different short fibers and nickel shell microcapsules (NMS) synergistically modify PA6 and injection molded to prepare bearings. With 10 wt% NMS, the COF could be reduced from 0.45 to 0.1. Fibers can effectively overcome bearing failure resulting from crushing the matrix under high loads or rapid peeling wear at high swing frequencies, which can warrant the effective lubrication of NMS and the formation of high‐quality transfer film. The bearing long‐life test shows very stable and low COF and wear with the feasibility to utilize microcapsules modified polymers in journal bearings.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of nickel shell microcapsules and short fibers on polyamide 6‐matrix composites: Thermal, surface wetting, mechanical, and tribological properties

Zhang

Yan

et al. 2022

Polymer Composites

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“…It has been widely used in the coating of self-healing microcapsules with lubricating function. 30 − 32 …”

Section: Introductionmentioning

confidence: 99%

“…Li studied that self-healing microcapsules were prepared by the solvent evaporation method with polysulfone (PSF) as the shell and tung oil as core materials because PSF has relatively stable chemical properties and high thermal stability. It has been widely used in the coating of self-healing microcapsules with lubricating function. − …”

Section: Introductionmentioning

confidence: 99%

Properties and Corrosion Resistance Mechanism of a Self-Healing Propane–1,2,3-Triol-Loaded Polysulfone Microcapsule Coating Loaded with Epoxy Resin

et al. 2022

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Propane–1,2,3-triol-loaded polysulfone (PSF) microcapsules were prepared by the solvent evaporation method. The particle size of the microcapsules is about 140 μm. The shell wall thickness is about 17 μm approximately. The microcapsules have high thermal stability and antiwear performance. The self-healing coating was prepared by adding the prepared capsule into the epoxy resin coating. After electrochemical and corrosion immersion experiments, the resistance modulus of the coating added to the microcapsules was higher than the others in a 3.5 wt % NaCl corrosion solution, and it had the lowest corrosion current density, so the self-healing microcapsule coatings showed excellent healing ability and corrosion inhibition function for microcracks. This was attributed to the formation of a hydrophobic film after propane–1,2,3-triol was released from the damaged microcapsules.

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Surface modification of polysulfone/PAO40 microcapsules via polydopamine to improve thermal stability and used to prepare polyamide 6-based self-lubricating composite

Cited by 9 publications

References 38 publications

Effects of nickel shell microcapsules and short fibers on polyamide 6‐matrix composites: Thermal, surface wetting, mechanical, and tribological properties

Effects of nickel shell microcapsules and short fibers on polyamide 6‐matrix composites: Thermal, surface wetting, mechanical, and tribological properties

Properties and Corrosion Resistance Mechanism of a Self-Healing Propane–1,2,3-Triol-Loaded Polysulfone Microcapsule Coating Loaded with Epoxy Resin

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