Environment-friendly aqueous PTFE based bonded solid lubricating coatings: Mechanical and tribological properties under diversified environments

Li, Bin; Jiang, Xin; Wan, Hongqi; Chen, Lei; Ye, Yinping; Zhou, Hang; Chen, Jianmin

doi:10.1016/j.porgcoat.2019.01.039

Cited by 7 publications

(1 citation statement)

References 30 publications

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“…By doping and optimizing the PTFE content, the defects of the high-hardness coating were resolved. 32 Figure 5b shows the morphological changes of the coatings with different PTFE contents (20% Al-SiO 2 content) rubbed under a CS-10 abrasive head. We can observe that as the PTFE content increases, the scratches on the coating surface keep decreasing.…”

Section: Abrasion-resistant Property Of the Coatingmentioning

confidence: 99%

Preparation of matte, abrasion‐resistant and anti‐fouling waterborneUV‐curable coating and its application in electronic product shells

Jiang,

Wu,

Yan

et al. 2023

J of Applied Polymer Sci

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This paper presents a viable coating design for the production of waterborne coatings using PUA, Silicone‐modified‐PUA, Al‐SiO2, and PTFE as key ingredients. The coatings are prepared through an air compression spraying technique followed by a photocuring procedure. The resulting PUA/Silicone‐modified‐PUA/Al‐SiO2/PTFE coating exhibits exceptional properties including high hardness, low surface tension, and a low coefficient of friction. Experimental findings reveal noteworthy characteristics of the coating. It possesses a gloss level of 4–6°, a hardness of 492.69 N/mm, an elasticity modulus of 11469.94 MPa, a surface roughness of 0.87 μm, a dynamic coefficient of friction of 0.125 μN, and a surface tension of 0.4967 mN/m. To assess its performance, the coating underwent rigorous tests such as the CS‐5 Wool Touchpad Shinning Friction test with a 200 g load over 250,000 cycles. It exhibited minimal changes in gloss (≤2°) and color difference (∆E ≤ 0.75). Additionally, the CS‐10 abrasive head Optical Surface Taber Abrasion Resistance test was conducted using a 500 g load for 10 cycles, resulting in a Class 1 rating, and after 100 cycles, it achieved a Class 3 rating. This demonstrates its remarkable resistance to tribological environments, enduring tapping, touching, and scraping by fingers over extended periods.

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Section: Abrasion-resistant Property Of the Coatingmentioning

confidence: 99%

Preparation of matte, abrasion‐resistant and anti‐fouling waterborneUV‐curable coating and its application in electronic product shells

Jiang,

Wu,

Yan

et al. 2023

J of Applied Polymer Sci

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Influence of Natural Serpentine on Tribological Performance of Phosphate Bonded Solid Coatings

Sun

Chen

et al. 2022

Tribol Lett

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Natural serpentine powders were incorporated into phosphate bonded solid coatings to promote the antiwear performance of the phosphate coatings. Optimal mass percent of natural serpentine in phosphate coatings was rstly explored. Thereafter, in order to stimulate layer slip of natural serpentine and strengthen interfacial interaction between natural serpentine and counterface during the friction process, tribological performance of the composite coatings under different friction condition was properly investigated. The experimental result indicated that the optimal incorporation of natural serpentine in phosphate coatings was 10 wt.%, through which anti-wear performance of phosphate coatings was signi cantly elevated. Additionally, accompanied by the increase of applied load and sliding speed, natural serpentine was activated by friction force and local friction heat, and simultaneously interfacial interactions between naturals serpentine and counterface were intensi ed. As a result, a continuous protective tribo-lm was in-situ formed on the counterface, through which anti-wear performance of phosphate coatings were signi cantly promoted. At the same time, serious furrows generated on the counterface were also effectively self-repaired during the friction process, and further abrasion on the counterface was greatly restrained.

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Study on the preparation and fretting behavior of bonded oriented MoS2 solid lubricant coating

Xiong,

Wu,

Fan

et al. 2024

Friction

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The bonded MoS2 solid lubricant coating is an effective measure to mitigate the fretting wear of AISI 1045 steel. In this work, the amino functionalized MoS2 was protonated with acetic acid to make the MoS2 positively charged. The directional arrangement of protonated MoS2 in the coating was achieved by electrophoretic deposition under the electric field force. The bonded directionally aligned MoS2 solid lubricant coating showed high adaptability to various loads and excellent lubrication performance under all three working conditions. At a load of 10 N, the friction coefficient and wear volume of the coating with 5 wt% protonated MoS2 decreased by 20.0% and 37.2% compared to the pure epoxy coating, respectively, and by 0.07% and 16.8% than the randomly arranged MoS2 sample, respectively. The remarkable lubricating properties of MoS2 with directional alignment were attributed to its effective load-bearing and mechanical support, barrier effect on longitudinal extension of cracks, and the formation of a continuous and uniform transfer film.

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Environment-friendly aqueous PTFE based bonded solid lubricating coatings: Mechanical and tribological properties under diversified environments

Cited by 7 publications

References 30 publications

Preparation of matte, abrasion‐resistant and anti‐fouling waterborneUV‐curable coating and its application in electronic product shells

Preparation of matte, abrasion‐resistant and anti‐fouling waterborneUV‐curable coating and its application in electronic product shells

Influence of Natural Serpentine on Tribological Performance of Phosphate Bonded Solid Coatings

Study on the preparation and fretting behavior of bonded oriented MoS2 solid lubricant coating

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