In-situ synthesis of Cu2S nanoparticles to consolidate the tribological performance of PAI-PTFE bonded solid lubricating coatings

Xi, Zhengchao; Wan, Hongqi; Ma, Yanjun; Wu, Yezhou; Chen, Lei; Li, Hongxuan; Zhou, Hang; Chen, Jianmin; Hou, Guoliang

doi:10.1016/j.porgcoat.2021.106197

Cited by 12 publications

(3 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tribological properties of the optimal PAI/MC-APT/MSO composite coating are compared to two commercial coatings, along with PAI-based lubricant coatings with solid lubricants in other papers, and APT-modified monolithic lubricant materials. − According to Figure , our work demonstrates significant advantages in terms of both the friction coefficient and wear rate when compared to the PAI-based lubricant coating. Furthermore, the PAI/MC-APT/MSO composite coating displays a relatively lower friction coefficient compared to APT-modified monolithic composites, as well as the HM-1400B coating from Lanzhou Institute of Chemical Technology and Dupont 958G-303 commercial coating products from the USA.…”

Section: Resultsmentioning

confidence: 97%

Microvesicle-Embedded Solid–liquid Composite Coating for the Tribological Behavior Regulation and Long-Acting Lubrication

Li,

Chen,

et al. 2024

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Friction interfaces in liquid-embedded composite lubrication coatings commonly comprise a combination of discontinuous fluid films and rough solid contact surfaces, which together ensure easy shearing and a prolonged wear life. However, achieving high efficacy in mixed lubrication poses a challenge due to the conflicting nature of enhanced migration freedom for the liquid lubricant and increased mechanical strength of the solid matrix. Recent efforts have focused on incorporating reinforcing fillers to develop multicomponent, multiphase composites that can address this paradox. Here, we describe a modified attapulgite (APT) with strong biphasic wettability via the oil decompressive osmosis treatment on APT nanocontainers grafted with long nonpolar alkyl chains. This modified APT enables control over the size, distribution, and mobility of lubricant droplets by constructing a Pickering emulsion and toughens the solid-phase matrix through dispersion strengthening. Additionally, the introduction of APT induces the formation of a solid tribofilm during friction, which possesses a higher oil adsorption capacity, as verified through first-principles calculations based on density functional theory (DFT). Consequently, the fluid films can be replenished by the fracture of nanocontainers and adsorption from the bulk phase; further comprehensive and effective regulation of the friction interface leads to low friction and wear.

show abstract

Section: Resultsmentioning

confidence: 97%

Microvesicle-Embedded Solid–liquid Composite Coating for the Tribological Behavior Regulation and Long-Acting Lubrication

Li,

Chen,

et al. 2024

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

show abstract

“…30,31 As a nanomaterial, 0D-llers have been demonstrated to be suitable for a wide range of tribological applications in ceramic, metal and polymer coatings owing to their nearly spherical nanostructure, high thermal conductivity, and low thermal expansion coefficient. [32][33][34] However, attention has gradually shied from 0D nanollers to candidates in other dimensions with the introduction of multi-dimensional nanomaterials.…”

Section: Introductionmentioning

confidence: 99%

Advanced progress on the significant influences of multi-dimensional nanofillers on the tribological performance of coatings

Wang,

Xiong,

Yang

et al. 2023

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…A polymer coating is applied to the surface of an engine bearing. Xi [ 20 ] prepared a solid lubricant coating by in situ synthesis of cuprous sulphide (Cu 2 S) nanoparticles in polyamide-imide (PAI) and polytetrafluoroethylene (PTFE), and tests showed that the coating had a CoF of 0.071 under dry sliding wear at a phase load of 5 N. Song et al [ 21 ] prepared TiN and TiN-MoS 2 /PTFE coatings, respectively, and the tests showed that the CoF of the TiN coating was 0.29 and 0.095, respectively, at a load of 80 N and a speed of 8 mm/s. Duan et al [ 22 ] prepared a Triton X-100-modified fluorinated graphene and ZIF-8 composite epoxy coating, and the tests showed that the CoF of the coating was 0.15 under dry sliding wear at a load of 5 N and a sliding speed of 10 mm/s.…”

Section: Introductionmentioning

confidence: 99%

The Tribological and Mechanical Properties of PI/PAI/EP Polymer Coating under Oil Lubrication, Seawater Corrosion and Dry Sliding Wear

Cao

et al. 2023

Polymers

View full text Add to dashboard Cite

To investigate the tribological performance of a copper alloy engine bearing under oil lubrication, seawater corrosion and dry sliding wear, three different PI/PAI/EP coatings consisting of 1.5 wt% Ce2O3, 2 wt% Ce2O3, 2.5 wt% Ce2O3 were designed, respectively. These designed coatings were prepared on the surface of CuPb22Sn2.5 copper alloy using a liquid spraying process. The tribological properties of these coatings under different working conditions were tested. The results show that the hardness of the coating decreases gradually with the addition of Ce2O3, and the agglomeration of Ce2O3 is the main reason for the decrease of hardness. The wear amount of the coating increases first and then decreases with the increase of Ce2O3 content under dry sliding wear. The wear mechanism is abrasive wear under the condition of seawater. The wear resistance of the coating decreases with the increase of Ce2O3 content. The wear resistance of the coating with 1.5 wt% Ce2O3 is the best under-seawater corrosion. Although Ce2O3 has corrosion resistance, the coating of 2.5 wt% Ce2O3 has the worst wear resistance under seawater conditions due to severe wear caused by agglomeration. Under oil lubrication conditions, the frictional coefficient of the coating is stable. The lubricating oil film has a good lubrication and protection effect.

show abstract

In-situ synthesis of Cu2S nanoparticles to consolidate the tribological performance of PAI-PTFE bonded solid lubricating coatings

Cited by 12 publications

References 46 publications

Microvesicle-Embedded Solid–liquid Composite Coating for the Tribological Behavior Regulation and Long-Acting Lubrication

Microvesicle-Embedded Solid–liquid Composite Coating for the Tribological Behavior Regulation and Long-Acting Lubrication

Advanced progress on the significant influences of multi-dimensional nanofillers on the tribological performance of coatings

The Tribological and Mechanical Properties of PI/PAI/EP Polymer Coating under Oil Lubrication, Seawater Corrosion and Dry Sliding Wear

Contact Info

Product

Resources

About