The Effects of Copper and Polytetrafluoroethylene (PTFE) on Thermal Conductivity and Tribological Behavior of Polyoxymethylene (POM) Composites

He, Junqing; Zhang, Ling; Li, Chunzhong; Yan, Biao; Tang, Renjian

doi:10.1080/00222348.2010.540987

Cited by 15 publications

(19 citation statements)

References 25 publications

(27 reference statements)

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“…This is because POM has high mechanical strength and unique properties such as excellent abrasion resistance, low friction coefficient, fatigue resistance, noiseless performance, lightweight, oil-less conditions, mouldability, higher melting point and low cost [1][2][3][4][5][6][7][8][9][10]. As such POM is considered as a major class of tribopolymers widely used in wear applications.…”

Section: Introductionmentioning

confidence: 99%

Wear Characterizations of Polyoxymethylene (POM) Reinforced with Carbon Nanotubes (POM/CNTs) Using the Paraffin Oil Dispersion Technique

Yousef

Visco

Galtieri

et al. 2015

JOM

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Section: Introductionmentioning

confidence: 99%

Wear Characterizations of Polyoxymethylene (POM) Reinforced with Carbon Nanotubes (POM/CNTs) Using the Paraffin Oil Dispersion Technique

Yousef

Visco

Galtieri

et al. 2015

JOM

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“…Th e debris morphology indicated the adhesive wear and abrasive wear mechanisms of POM/Cu composites. Further, it was reported that incorporation of PTFE into POM-Cu composites had a negligible eff ect on the thermal conductivity of composites, but helped in the formation of a continuous and uniform transfer fi lm, and resulted in the reduction in the friction coeffi cient and wear rate of composites [90]. Th e POM/15% Cu/10% PTFE composite, with a value of wear rate similar to unfi lled POM possessed higher thermal conductivity and lower friction coeffi cient (Fig.…”

Section: Tribological Properties and Wear Resistance Of Pom-based Nanmentioning

confidence: 99%

“…21 Eff ect of Cu content on (a) the friction coeffi cient and (b) wear rate of POM composites with and without PTFE[90].…”

mentioning

confidence: 99%

Nanocomposites of Polyoxymethylene

Leszczyńska¹,

Pielichowski²

2014

Polyoxymethylene Handbook

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Recent research results in the area of nanocomposites and nanostructured materials based on polyoxymethylene (POM) are reviewed in this chapter. Improvement of diff erent properties, such as mechanical strength, electrical conductivity, tribological properties, thermal stability and biocompatibility, are reported for these new POM-based materials, which indicate their high potential in structural and functional applications. As nanofi llers for POM-layered silicates, fullerenes, carbon nanotubes and nanofi bers, polysilsesquioxanes (POSS), nanostructural hydroxyapatite or nanoparticulate oxides such as titanium dioxide, nanosilica, zirconium oxide and zinc oxide, are applied. Nanocomposites based on POM and diff erent types of nanofi llers reveal superior properties compared to conventional POM composites, but the amount of additive remains lower. Th e infl uence of nanofi ller type, manufacturing techniques, role of interfacial properties and kind of applied surface modifi cation of nanoparticles on the control of generated nanostructure is discussed. Moreover, complex morphology and properties of electrospun POM nanofi bers are analyzed with respect to the nanomaterials manufacturing conditions.

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“…Recently, more and more researchers have put an emphasis on the synergistic effects of various fillers in improving the friction and wear properties of polymers [17][18][19]. However, the main focus of examinations of the tribology performance of POM-based composites was concentrated on the selection and collocation of additives [17], surface treatment of fillers [16], processing parameters [20] and sliding conditions [21,22].…”

Section: Introductionmentioning

confidence: 99%

Tribological behavior and morphology of PTFE particulate-reinforced POM matrix composites

Liu

Luo

Zhou

et al. 2016

Journal of Polymer Engineering

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Abstract The friction and wear properties of polyoxymethylene/polytetrafluoroethylene (POM/PTFE) composites were investigated by using a block-on-ring friction tester and special focus was paid to the effect of weight average molar mass (Mw) of POM. To study the thermodynamic characteristics and wear mechanism of composites, differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) were used. Results showed that friction and wear properties of the composite blends were strongly affected by the Mw of POM and the loading fractions of PTFE. POM/PTFE composites with lower Mw of POM owned better wear resistance abilities under a high-speed sliding regime, which resulted from the effective lubrication of transferred wear debris under a relatively high sliding speed. However, the transfer layer on the counterface could be easily peeled off under the low sliding speed, resulting in higher wear rate of POM/PTFE composites with lower Mw of POM. POM and its composites with high Mw showed comparative high friction levels, related to the strong adhesion between the resin and the steel counterpart. DSC analysis showed that POM with lower Mw had higher crystallinity, which was beneficial to the improvement of wear resistance in a high-speed sliding condition.

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The Effects of Copper and Polytetrafluoroethylene (PTFE) on Thermal Conductivity and Tribological Behavior of Polyoxymethylene (POM) Composites

Cited by 15 publications

References 25 publications

Wear Characterizations of Polyoxymethylene (POM) Reinforced with Carbon Nanotubes (POM/CNTs) Using the Paraffin Oil Dispersion Technique

Wear Characterizations of Polyoxymethylene (POM) Reinforced with Carbon Nanotubes (POM/CNTs) Using the Paraffin Oil Dispersion Technique

Nanocomposites of Polyoxymethylene

Tribological behavior and morphology of PTFE particulate-reinforced POM matrix composites

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