On the friction and wear behavior of PTFE composite filled with rare earths treated carbon fibers under oil-lubricated condition

Qian-qian, Shangguan; Cheng, Xinbin

doi:10.1016/j.wear.2005.08.009

Cited by 23 publications

(5 citation statements)

References 15 publications

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“…Xue et al [11] compared the effects of different ber and whisker types on the tribological characteristics of PTFE composites under oil lubrication and observed that bers promote the formation of a friction lm on the counterpart surface. Furthermore, studies have examined the in uence of ber surface treatment on the tribological properties of polymer composites in oil lubrication, highlighting the signi cance of the interface bonding between bers and the polymer matrix in understanding their tribological behavior [12][13][14]. Previous studies have already recognized the critical role of friction lm development on the sliding surfaces in determining the tribological properties of peekbased materials operating under mixed and boundary lubrication conditions [1].…”

Section: Introductionmentioning

confidence: 99%

Tribological properties investigations of short glass fiber, graphite, PTFE and B 4 C reinforced epoxy composites under oil lubrication conditions

Xiong

2023

Preprint

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This study investigates the tribological performance of epoxy (EP) composites reinforced with short glass fibers (SGF), graphite, PTFE, and B4C nanoparticles, using oil lubrication. The results demonstrate that the addition of SGF significantly reduces wear and friction in the EP matrix. In contrast, the incorporation of B4C nanoparticles and other solid lubricants does not have a significant effect on friction and wear. The remarkable tribological properties observed in the SGF-reinforced EP composites can be attributed to the superior bearing capabilities and wear durability of SGF. These fibers effectively withstand the load and exhibit excellent durability during sliding, resulting in reduced wear and friction. To further understand the underlying mechanism, a comprehensive evaluation of the nanostructure of the tribofilm was conducted. The formed tribofilm acts as a protective layer during sliding, preventing direct contact between the sliding pairs and reducing the occurrence of boundary and mixed lubrication conditions. This protective film significantly impacts the performance of the tribological system. By preventing direct rubbing, the tribofilm minimizes wear and friction, thereby enhancing the tribological properties of the SGF-reinforced EP composites.

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Section: Introductionmentioning

confidence: 99%

Tribological properties investigations of short glass fiber, graphite, PTFE and B 4 C reinforced epoxy composites under oil lubrication conditions

Xiong

2023

Preprint

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“…Polytetrafluoroethylene (PTFE) composites are widely used as lubricating materials on account of good mechanical and tribological properties [1]. However, the unique structure of PTFE results in poor wear resistance, which can be overcome by adding fillers to improve tribological properties by means of nanoparticle filling [2,3], fiber material blending [4,5], and surface modification [6]. Among them, fiber reinforcement has demonstrated rapid growth and development.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Analytical Investigations on Tribological Properties of PTFE/AP Composites

Wang

Sun

et al. 2021

Polymers

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The tribological properties of polytetrafluoroethylene (PTFE)/AP (poly(para-phenyleneterephthalamide) (PPTA) pulp) composites under different test conditions (load: 2N, 10N; frequency: 1 Hz, 4 Hz; amplitude: 2 mm, 8 mm) were holistically evaluated. PTFE/AP composites with different AP mass ratios of 3%, 6%, and 12% as a skeleton support material were prepared. The coefficient of friction (COF) and wear rate were determined on a ball-on-disk tribometer. Furthermore, the morphology, element composition, and chemical structure of the transfer membrane were analyzed accordingly. The relationships between load, frequency, amplitude, and tribological properties were further investigated. According to the wear mechanism, AP enables effective improvement in the stiffness and wear resistance, which is also conducive to the formation of transfer films.

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“…However, PTFE also has certain disadvantages such as a high wear rate and low load bearing capacity [2], which limit its use in certain applications. In order to overcome these disadvantages, various PTFE compounds have been formed using polymer blends [3,4], resin binders [5,6], fibers [7], and nanoparticle fillers [8][9][10]. Combining these materials with PTFE has proven to increase the crystallinity [11], ultimate strength, elongation to failure, and toughness [12], and as a result, reduces wear in PTFE.…”

Section: Introductionmentioning

confidence: 99%

The effects of polydopamine coated Cu nanoparticles on the tribological properties of polydopamine/PTFE coatings

Beckford

Mathurin

Chen

et al. 2016

Tribology International

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The effects of using polydopamine (PDA) coated Cu nanoparticles (PDA-Cu) as a filler in the polytetrafluoroethylene (PTFE) topcoat of a PDA/PTFE dual-layer coating is investigated, where the PDA is used as an adhesive basecoat. Tribological tests show that the addition of PDA-Cu in PTFE increases the wear life of PDA/PTFE by a factor of two, approximately three orders of magnitude greater than that of pure PTFE without a PDA basecoat. This increase in wear life is achieved without compromising the low coefficient of friction characteristic of pure PTFE. Scratch tests show that the PDA-Cu filler improves adhesion between the PTFE and the PDA, preventing large scale delamination and also increases the toughness of the coating, preventing ruptures at lower loads.

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On the friction and wear behavior of PTFE composite filled with rare earths treated carbon fibers under oil-lubricated condition

Cited by 23 publications

References 15 publications

Tribological properties investigations of short glass fiber, graphite, PTFE and B 4 C reinforced epoxy composites under oil lubrication conditions

Tribological properties investigations of short glass fiber, graphite, PTFE and B 4 C reinforced epoxy composites under oil lubrication conditions

Experimental and Analytical Investigations on Tribological Properties of PTFE/AP Composites

The effects of polydopamine coated Cu nanoparticles on the tribological properties of polydopamine/PTFE coatings

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