Analysis of Solvent Effect on Mechanical Properties of Poly(ether ether ketone) Using Nano-indentation

Iqbal, Tanveer; Yasin, Saima; Shakeel, Ahmad; Mahmood, Hamayoun; Nazir, Fahad; Luckham, P.F.

doi:10.1063/1674-0068/31/cjcp1709173

Cited by 5 publications

(5 citation statements)

References 26 publications

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“…Interestingly, the blend sample 50% ABS/50% PC exhibited a significantly lower hardness value of 0.16 GPa compared to the values of 0.22 and 0.27 GPa for neat ABS and PC, respectively. This difference may have risen due to some surface effects during sample preparation or environmental effect [37]. Elastic modulus of all ABS/PC samples at different penetration depths has been presented in Figure 5.…”

Section: Nano-indentationmentioning

confidence: 99%

Study of Surface Mechanical Characteristics of ABS/PC Blends Using Nanoindentation

et al. 2021

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Acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) are considered a well-known class of engineering thermoplastics due to their efficient use in automotive, 3D printing, and electronics. However, improvement in toughness, processability, and thermal stability is achieved by mixing together ABS and PC. The present study focuses on the understanding of surface mechanical characterization of acrylonitrile butadiene styrene (ABS) and polycarbonate (PC) blends using nano-indentation. Polymer blends sheets with three different proportions of ABS/PC (75:25, 50:50, and 25:75) were fabricated via melt-processing and thermal press. Fourier transform infrared (FTIR) spectroscopy was performed to analyze the intermolecular interactions between the blends’ components. To understand the surface mechanical properties of ABS and PC blends, a sufficient number of nano-indentation tests were performed at a constant loading rate to a maximum load of 100 mN. Creeping effects were observed at the end of loading and start of unloading section. Elastic modulus, indentation hardness, and creep values were measured as a function of penetration displacement in the quasi-continuous stiffness mode (QCSM) indentation. Load-displacement curves indicated an increase in the displacement with the increase in ABS contents while a decreasing trend was observed in the hardness and elastic modulus values as the ABS content was increased. We believe this study would provide an effective pathway for developing new polymer blends with enhanced mechanical performance.

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Section: Nano-indentationmentioning

confidence: 99%

Study of Surface Mechanical Characteristics of ABS/PC Blends Using Nanoindentation

et al. 2021

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“…It was observed that semi-crystalline PEEK exhibited a significantly inert behavior to ordinary organic solvents but water and chlorinated organic solvents triggered deterioration in the surface mechanical properties. Recently, we reported the influence of acetone environment, as a function of different exposure times, on the nano-mechanical properties of PEEK using nanoindentation method (17). The results showed that the nano-mechanical properties of PEEK displayed a decreasing trend as a function of increasing exposure times to the acetone environment, which was linked with the swelling/softening of polymeric network.…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, the use of this solubility parameter has a long history and it is a manifestation of the relative solvency behavior of a liquid. Furthermore, these solvents were selected to see their effect on bulk properties, instead of nano-mechanical properties as reported earlier (16,17).…”

Section: Introductionmentioning

confidence: 99%

Physico-chemical analysis of semi-crystalline PEEK in aliphatic and aromatic solvents

et al. 2019

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Polyether ether ketone (PEEK) is a semi-crystalline thermoplastic polymer having excellent mechanical and thermal properties. Exposure of this polymer to aliphatic and aromatic solvents can lead to degradation or swelling of the polymeric material. The present work described the plasticization and stability analysis of semi-crystalline PEEK under different aromatic and aliphatic solvent environment. A variety of solvents (acetone, benzene, benzyl alcohol, chloroform, methanol, and toluene), based on their Hildebrand's Solubility Parameter, were chosen for investigation. The physico-chemical characteristics of virgin and treated polymeric samples were investigated using Gas Chromatography-Mass Spectrometry (GC-MS), Thermogravimetric Analysis (TGA), Differential Scanning Calorimetry (DSC), and Fourier Transform Infrared Spectroscopy (FTIR) techniques. The results indicated that the solvent exposure did not significantly affect the thermal behavior and chemical structure of the polymer. However, it seems that certain components of the polymer were leached into the solvent phase as revealed by the GC-MS analysis. The present study identified PEEK as a potentially suitable polymer for the applications where high resistance to aliphatic and aromatic solvents is needed.

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“…Therefore, knowledge of the surface properties are important considerations for material selection and design in applications involving surface engineering and tribological contacts. The mechanical properties of the outermost surface layers have been conveniently investigated using the nano-indentation technique for the past two decades by us and a number of other researchers [6][7][8][9][10][11][12][13][14][15][16][17][18]. Nano-indentation, a non-destructive technique, is a powerful tool for analyzing the surface mechanical properties of a wide variety of materials, including polymers, metals, composites, and biological entities.…”

Section: Introductionmentioning

confidence: 99%

“…The outcome of these studies revealed that the addition of nanomaterials improved the modulus, hardness, and coefficient of friction of the prepared composites [31]. Recently, we described the effect of acetone exposure, in relation to different exposure times, on the surface properties of poly (ether ether ketone) (PEEK) using a nano-indentation technique [10]. The results showed a decreasing trend in the surface properties of PEEK as a function of exposure time to the acetone, which was attributed to the softening of the polymer network.…”

Section: Introductionmentioning

confidence: 99%

Nano-Indentation Response of Ultrahigh Molecular Weight Polyethylene (UHMWPE): A Detailed Analysis

et al. 2020

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Nano-indentation, a depth sensing technique, is a useful and exciting tool to investigate the surface mechanical properties of a wide range of materials, particularly polymers. Knowledge of the influence of experimental conditions employed during nano-indentation on the resultant nano-mechanical response is very important for the successful design of engineering components with appropriate surface properties. In this work, nano-indentation experiments were carried out by selecting various values of frequency, amplitude, contact depth, strain rate, holding time, and peak load. The results showed a significant effect of amplitude, frequency, and strain rate on the hardness and modulus of the considered polymer, ultrahigh molecular weight polyethylene (UHMWPE). Load-displacement curves showed a shift towards the lower indentation depths along with an increase in peak load by increasing the indentation amplitude or strain rate. The results also revealed the strong dependence of hardness and modulus on the holding time. The experimental data of creep depth as a function of holding time was successfully fitted with a logarithmic creep model (R2 ≥ 0.98). In order to remove the creeping effect and the nose problem, recommended holding times were proposed for the investigated polymer as a function of different applied loads.

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Analysis of Solvent Effect on Mechanical Properties of Poly(ether ether ketone) Using Nano-indentation

Cited by 5 publications

References 26 publications

Study of Surface Mechanical Characteristics of ABS/PC Blends Using Nanoindentation

Study of Surface Mechanical Characteristics of ABS/PC Blends Using Nanoindentation

Physico-chemical analysis of semi-crystalline PEEK in aliphatic and aromatic solvents

Nano-Indentation Response of Ultrahigh Molecular Weight Polyethylene (UHMWPE): A Detailed Analysis

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