Polyether Ether Ketone (PEEK) Properties and Its Application Status

Ling, Xuanzhe; Jing, Xishuang; Zhang, Chengyang; Chen, Siyu

doi:10.1088/1755-1315/453/1/012080

Cited by 24 publications

(13 citation statements)

References 4 publications

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“…1(a) and 1(b), the well designed in situ FTIR cell consists of four main parts: base, main body, top cap and IR window. All these components are processed using polyether ether ketone (PEEK) as the original material, which possesses robust acid-base resistance (pH = 1-14) and can work normally under a wide temperature range of À100 C to 260 C (Ma et al, 2020;Ling et al, 2020). For the IR window, a round ZnSe film, of diameter $ 14 mm and thickness $ 1 mm, is fixed at the end of a hollow cylindrical PEEK tube; IR radiation can pass through the tube and ZnSe film from the inside to easily arrive at the working electrode.…”

Section: Schematic Designmentioning

confidence: 99%

Monitoring surface dynamics of electrodes during electrocatalysis using in situ synchrotron FTIR spectroscopy

Cheng¹,

Xu²,

Yang³

et al. 2023

J Synchrotron Radiat

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Monitoring the surface dynamics of catalysts under working conditions is important for a deep understanding of the underlying electrochemical mechanisms towards efficient energy conversion and storage. Fourier transform infrared (FTIR) spectroscopy with high surface sensitivity has been considered as a powerful tool for detecting surface adsorbates, but it faces a great challenge when being adopted in surface dynamics investigations during electrocatalysis due to the complication and influence of aqueous environments. This work reports a well designed FTIR cell with tunable micrometre-scale water film over the surface of working electrodes and dual electrolyte/gas channels for in situ synchrotron FTIR tests. By coupling with a facile single-reflection infrared mode, a general in situ synchrotron radiation FTIR (SR-FTIR) spectroscopic method is developed for tracking the surface dynamics of catalysts during the electrocatalytic process. As an example, in situ formed key *OOH is clearly observed on the surface of commercial benchmark IrO2 catalysts during the electrochemical oxygen evolution process based on the developed in situ SR-FTIR spectroscopic method, which demonstrates its universality and feasibility in surface dynamics studies of electrocatalysts under working conditions.

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Section: Schematic Designmentioning

confidence: 99%

Monitoring surface dynamics of electrodes during electrocatalysis using in situ synchrotron FTIR spectroscopy

Cheng¹,

Xu²,

Yang³

et al. 2023

J Synchrotron Radiat

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“…Polyether-ether-ketone (PEEK) is a high-performance semi-crystalline thermoplastic polymer [ 35 ]. Excellent mechanical and thermal properties, as well as good chemical resistance, are among the bold advantages of this polymer [ 50 ]. PEEK impeller has a high position in pump and compressor applications for different industries such as automotive [ 51 ], aerospace [ 52 ] and medical [ 5 ].…”

Section: Materials Used For Fabrication Of Impellersmentioning

confidence: 99%

Toward Polymeric and Polymer Composites Impeller Fabrication

et al. 2021

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Impellers are referred to as a core component of turbomachinery. The use of impellers in various applications is considered an integral part of the industry. So, increased performance and the optimization of impellers have been the center of attention of a lot of studies. In this regard, studies have been focused on the improvement of the efficiency of rotary machines through aerodynamic optimization, using high-performance materials and suitable manufacturing processes. As such, the use of polymers and polymer composites due to their lower weight when compared to metals has been the focus of studies. On the other hand, methods of the manufacturing process for polymer and polymer composite impellers such as conventional impeller manufacturing, injection molding and additive manufacturing can offer higher economic efficiency than similar metal parts. In this study, polymeric and polymer composites impellers are discussed and conclusions are drawn according to the manufacturing methods. Studies have shown promising results for the replacement of polymers and polymer composites instead of metals with respect to a suitable temperature range. In general, polymers showed a good ability to fabricate the impellers, however in more difficult working conditions considering the need for a substance with higher physical and mechanical properties necessitates the use of composite polymers. However, in some applications, the use of these materials needs further research and development.

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“…7,8 In recent years, PEEK and its composites have been widely used in aircraft parts (engine components such as seals, bushings, bearings, etc., fuel system components such as seals, connectors, valves, etc., fasteners such as screws and bolts etc., pump plates, empennage, fuselage belly panels, fuselage skin, landing gear door) exposed to abrasion or erosion. [9][10][11] Solid particle erosion, a typical wear mode, is a dynamic process in which material is gradually lost from the surface due to mechanical interaction between the surface and solid particles. 1,10,12 It creates negative consequences such as wear of materials, surface degradation, and reduction in the functional life of the structural component.…”

Section: Introductionmentioning

confidence: 99%

“…Due to its good tribological performance and high strength, it has found more and more applications as tribo material 7,8 . In recent years, PEEK and its composites have been widely used in aircraft parts (engine components such as seals, bushings, bearings, etc., fuel system components such as seals, connectors, valves, etc., fasteners such as screws and bolts etc., pump plates, empennage, fuselage belly panels, fuselage skin, landing gear door) exposed to abrasion or erosion 9–11 …”

Section: Introductionmentioning

confidence: 99%

The effect of matrix and interface properties modified by annealing on solid particle erosion behavior of carbon fiber reinforced polyetheretherketone

et al. 2023

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In this study, various heat treatments (annealings) were applied to carbon fiber reinforced polyetheretherketone (CF/PEEK) samples at four different temperatures (185, 225, 265, and 305°C) along two different holding times (30 and 270 min). The effects of changing matrix morphology, degree of crystallinity, and fiber‐matrix interface properties on thermo‐mechanical properties were investigated by differential scanning calorimetry (DSC) and dynamic mechanical analysis analyzes. Also, annealed CF/PEEK samples were tested to determine solid particle erosion characteristics. It was observed that the matrix crystallinity, fiber/matrix interface properties, and tribological properties of the CF/PEEK composites changed significantly with the thermal history. There was an increase in the degree of crystallinity with the increase in annealing temperature. It was observed that the degree of crystallinity increased up to about 27% and the damping factor decreased up to about 45%. As a result of the solid particle erosion tests performed under normal impact conditions, it was determined that the formation of the transcrystalline layer formed by heat treatment adversely affected the solid particle erosion resistance of the CF/PEEK. Erosion resistance of the heat‐treated samples (having higher fiber/matrix interface) was approximately 50% lower compared to the quenched sample. While the erosion rate for quenched samples is 14.5 × 10−5 g/g, this rate rises to 26.1 × 10−5 g/g for annealed samples. In addition, surface topography was examined by means of an optical profilometry, and surface morphology was examined by means of scanning electron microscopy. These examinations confirmed the experimental results.

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Polyether Ether Ketone (PEEK) Properties and Its Application Status

Cited by 24 publications

References 4 publications

Monitoring surface dynamics of electrodes during electrocatalysis using in situ synchrotron FTIR spectroscopy

Monitoring surface dynamics of electrodes during electrocatalysis using in situ synchrotron FTIR spectroscopy

Toward Polymeric and Polymer Composites Impeller Fabrication

The effect of matrix and interface properties modified by annealing on solid particle erosion behavior of carbon fiber reinforced polyetheretherketone

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