On dry sliding friction and wear behavior of PPESK filled with PTFE and graphite

Zhang, Xintao; Liao, Gongxiong; Jin, Qifeng; Feng, Xin; Jian, Xigao

doi:10.1016/j.triboint.2007.08.003

Cited by 72 publications

(40 citation statements)

References 20 publications

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“…Novel poly (phthalazinone ether sulfone ketone) resins have become of great interest in applications such as bearing and slider materials. In this paper, dry sliding wear of polytetrafluoroethylene and graphite-filled polymeric composites against polished steel counterparts were investigated on a block-on-ring apparatus at the same sliding velocities and different loads [16]. The results indicated that the addition of 5-25 wt% polytetrafluoroethylene and 5-30 wt% graphite contribute to an obvious improvement of tribological performance of the polymeric composites at room temperature.…”

Section: Introductionmentioning

confidence: 97%

Tribological behaviour of proposed polymeric bearing materials

Khashaba

Eatemad

Youssef

et al. 2013

Materialwissenschaft Werkst

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The aim of the present work is to introduce new polymeric bearing materials. The proposed polymeric composites are consisting of polyethylene (PE), polypropylene (PP) and polystyrene (PS) and filled by fibres of polytetrafluoroethylene (PTFE) in concentration up to 25 wt.% as well as different types of natural oils such as (corn oil, olive oil, paraffin oil, glycerin oil, castor oil and sunflower oil) in concentration up to 10 wt.%. The frictional behavior of the proposed composites and wear resistance are investigated at different values of applied load. Based on the experimental observations, it was found that for composites free of oil, friction of PS and PE specimens decreased, while friction of PP specimens slightly increased with increasing PTFE content. PP composites filled by corn oil showed slight friction increase. Besides, friction coefficient displayed by PS and PE specimens filled by glycerin oil decreased with increasing oil content, while friction coefficient displayed by PP specimens showed consistent trend. It was noted that, PE filled with 7.5% glycerin oil and 20 wt.% PTFE displayed the minimum value of friction coefficient (0.07). This friction coefficient values recommend those composites to be used as bearing materials. PE filled by glycerin oil displayed relatively lower friction values due its common known good lubricating property. Friction of PE composites filled by paraffin oil drastically decreased with the increasing oil content. PP composites showed the lowest wear values. In addition to that, it was shown that wear displayed by composites filled by glycerin oil was higher than that containing corn oil, while wear of the tested composites filled with olive oil showed lower values than that displayed by corn oil filled composites. Composites containing 5.0 -7.5% paraffin oil content showed good wear resistance which recommends them to be used as bearing material. Wear of PP, PS and PE composites filled with sunflower oil and 15 wt.% PTFE drastically decreased with increasing oil content. The minimum wear was displayed by PP and PE composites filled with 10% oil content.

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Section: Introductionmentioning

confidence: 97%

Tribological behaviour of proposed polymeric bearing materials

Khashaba

Eatemad

Youssef

et al. 2013

Materialwissenschaft Werkst

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“…Graphite flakes are symmetrically distributed on the sliding surface, which reduces the direct contact between the composites and steel counterparts [17]. Zhang et al [18] confirmed that the wear rate and the friction coefficient of polyphtalazinone ether sulfone ketone (PPESK) composites decreased with the increase of the graphite volume fraction. Chang et al [19] found that the specific wear rate of polyetherimide (PEI) filled with graphite was 800 times lower than that of a neat matrix under standard testing conditions.…”

Section: Introductionmentioning

confidence: 99%

Tribological response of an epoxy matrix filled with graphite and/or carbon nanotubes

et al. 2017

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Reinforced polymer-matrix composites are widely used under sliding contact conditions in various boating and automotive applications. In this paper, the friction and wear of bulk epoxy and carbon filler reinforced epoxy composites have been investigated using a pin-on-disc tribometer. The effect of different fillers on the tribological behavior of an epoxy has been studied using treated and untreated carbon nanotubes, graphite, and a mixture of graphite and carbon nanotubes. Filler addition greatly enhances the tribological properties of the epoxy resin, by reducing the friction coefficient and the wear rate. In addition, it was found that the treated carbon nanotubes/epoxy composites have the best tribological behavior. Moreover, a correlation between contact temperature and friction coefficient is reported. Finally, the wear mechanisms were determined by scanning electronic microscopy.

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“…The integration of various functional filler particles is an important approach in the design of load bearing and wear resistant polymer composites. For instance, the wear resistance properties of polyether ether ketone reinforced with 10 nm zirconium dioxide, phthalazinone ether sulfone ketone filled with polytetrafluoroethylene or graphite have been investigated [7,8]. Researchers have also found that filling polymer with copper sulfide, copper fluoride, zinc oxide, copper oxide, graphite, aluminium oxide, polyphenyl ester, copper micro-powder, zinc borate, silicon carbide or bronze particles were effective in reducing the coefficient of friction and enhancing the wear properties because the particles increase the bond strength between the transfer film and the counterface [9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Friction and wear properties of polyphenyl ester and graphite filler in the carbon fibre‐reinforced ultra‐high‐molecular‐weight polyethylene composites

Wang

Guo

Gao

et al. 2018

Materialwissenschaft Werkst

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Ultra-high-molecular-weight polyethylene (UHMWPE) reinforced with carbon fibre (CF) underwent an enhancement of heat and wear resistant with the addition of polyphenyl ester (POB) and graphite, respectively. The effect of graphite content on the tribological properties of the composites was studied. The wear surface was examined using scanning electron microscope (SEM). The results of the sliding wear tests showed that with graphite loading, wear resistance increased and the coefficient of friction was much more stable. In addition, graphite improved the tribological properties of the composite. Hardness, impact strengths and thermal stability of the composites were enhanced. With increased load, the wear rate of the ultra-high-molecular-weight polyethylene + carbon fibre + polyphenyl ester + 10 % graphite composite tended to increase, whereas the coefficient of friction decreased. The adherence and plastic deformation were dominant wear mechanisms for the ultra-high-molecular-weight polyethylene + carbon fibre + polyphenyl ester + graphite composites. The formation of a thin and uniform transfer film was observed.

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On dry sliding friction and wear behavior of PPESK filled with PTFE and graphite

Cited by 72 publications

References 20 publications

Tribological behaviour of proposed polymeric bearing materials

Tribological behaviour of proposed polymeric bearing materials

Tribological response of an epoxy matrix filled with graphite and/or carbon nanotubes

Friction and wear properties of polyphenyl ester and graphite filler in the carbon fibre‐reinforced ultra‐high‐molecular‐weight polyethylene composites

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