Effects of soft chain materials on the tribological performances of thermosetting polyurethane under water-lubrication

Xu, Qiran; Guo, Zhiwei; Huang, Qiren; Yuan, Chengqing

doi:10.1016/j.triboint.2024.109692

Tribology International

2024

DOI: 10.1016/j.triboint.2024.109692

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Effects of soft chain materials on the tribological performances of thermosetting polyurethane under water-lubrication

Qiran Xu,

Zhiwei Guo,

Qiren Huang

et al.

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Cited by 3 publications

References 38 publications

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Facile fabrication and tribological properties of self-lubricating polyurethane based on expanded graphite/paraffin for water lubricated bearings

Li,

Zhang,

Tang

et al. 2024

Journal of Materials Research and Technology

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Facile fabrication and tribological properties of self-lubricating polyurethane based on expanded graphite/paraffin for water lubricated bearings

Li,

Zhang,

Tang

et al. 2024

Journal of Materials Research and Technology

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Synthesis of novel waterborne polyurethane coatings with excellent solid lubricating performance

Zhao,

Qi,

Wetzel

et al. 2025

Tribology International

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Tribological Performance of Short Fibers Reinforced Thermoplastic Polyurethane Composite Materials Under Water-Lubricated Condition

Yu,

Jiang,

et al. 2024

Polymers

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The water-lubricated bearing plays a crucial role in the ship propulsion system, significantly impacting vessel safety. However, under the harsh working conditions of low-speed and heavy-load, the lubrication state of water-lubricated bearings is usually poor, leading to serious friction and wear. To improve the tribological performance of composites and reduce friction, three short fibers (ultra-high-molecular-weight polyethylene fibers, basalt fibers, and bamboo fibers) with the same mass fraction (5%) were added into the melted thermoplastic polyurethane (TPU). The tribological behavior of these three composites under different loads and rotation speeds was investigated using the CBZ-1 friction and wear tester. Through the comprehensive analysis of the friction coefficient, the wear mass loss, and the surface morphology, it was confirmed that the filled fiber positively affected the tribological performance of thermoplastic polyurethane materials. The experimental results indicated that basalt fiber significantly improved the tribological performance of TPU, and the friction coefficient of the sample was only 0.088 under the working conditions of 0.5 MPa and 250 r/min, which was 70.57% lower than that of pure TPU material. And in all the tests, the minimum wear of the basalt fiber-reinforced composite is only 0.4 mg, which is also the smallest of all the materials under all conditions, and a decrease of 98.69% compared to TPU. Under high loads, ultra-high-molecular-weight polyethylene fiber and bamboo fiber-reinforced composites have smoother surfaces and exhibit better tribological properties. This study provides an experimental foundation for tribological performance enhancement for environmentally friendly, water-lubricated bearing composites.

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Effects of soft chain materials on the tribological performances of thermosetting polyurethane under water-lubrication

Cited by 3 publications

References 38 publications

Facile fabrication and tribological properties of self-lubricating polyurethane based on expanded graphite/paraffin for water lubricated bearings

Facile fabrication and tribological properties of self-lubricating polyurethane based on expanded graphite/paraffin for water lubricated bearings

Synthesis of novel waterborne polyurethane coatings with excellent solid lubricating performance

Tribological Performance of Short Fibers Reinforced Thermoplastic Polyurethane Composite Materials Under Water-Lubricated Condition

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