Effect of ionic liquids on thermomechanical properties of polyetheretherketone‐multiwalled carbon nanotubes nanocomposites

Ahmad, Ashfaq; Mansor, Nurlidia; Mahmood, Hamayoun; Iqbal, Tanveer; Moniruzzaman, Muhammad

doi:10.1002/app.51788

Cited by 18 publications

(21 citation statements)

References 51 publications

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“…Furthermore, it does not have drifting errors, resulting in the accurate observation of creep in small indents for long periods of time by measuring the mean stress and contact stiffness [ 69 ]. This technique has been used to study the creep behavior of coatings, multi-layer solids, bulk materials, polymers, and composites [ 59 , 70 , 71 , 72 , 73 ]. The depth of indentation can be measured in situ by piezoelectric depth-sensing noanoindenter.…”

Section: Resultsmentioning

confidence: 99%

Experimental Study of Mechanical Properties of Polypropylene Random Copolymer and Rice-Husk-Based Biocomposite by Using Nanoindentation

et al. 2022

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Nanoindentation is widely used to investigate the surface-mechanical properties of biocomposites. In this study, polypropylene random copolymer (PPRC) and biowaste rice husk (BRH) were used as the main raw materials, and glass-fiber-reinforced polypropylene and talc were also used with BRH to enhance the mechanical characterization of the biocomposites. The interfacial bonding between the polymer and the rice husk was increased by treating them with maleic anhydride and NaOH, respectively. The results obtained from the nanoindentation indicated that the plastic behavior of the biocomposites was prominent when untreated BRH was used and vice versa. The modulus and hardness of the biocomposite improved by 44.8% and 54.8% due to the neat PPRC, respectively. The tribological properties were studied based on the hardness-to-modulus ratio and it was found that BRH- and talc-based biocomposites were better than other samples in terms of low friction and wear rate. The creep measurements showed that untreated rice husk biocomposite exhibited high resistance to load deformation.

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Section: Resultsmentioning

confidence: 99%

Experimental Study of Mechanical Properties of Polypropylene Random Copolymer and Rice-Husk-Based Biocomposite by Using Nanoindentation

et al. 2022

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“…The thermal resistance and the degradation temperature of composite materials are significantly impacted by MWCNT aggregation and irregular distribution in several polymer matrices, and this remains the primary constraint for their usage in many applications. 9 Thermal degradation of PEEK/MWCNT composites was assessed in this work by exposing the samples to increasing temperatures (at a rate of 10 C/min) to better understand the pyrolytic behavior of material properties. TG and DTG curves shown in Figure 1 and the data reported in Table 2 reveal the maximum decomposition temperatures of PEEK/MWCNT composites synthesized without (IL 0 ) and with different ILs.…”

Section: Thermogravimetric Analysis Of Peek/mwcnt Compositesmentioning

confidence: 99%

“…8 Extant studies indicate that the uniform distribution of MWCNT improves the thermomechanical characteristics of PEEK/MWCNT when ILs are used. 8,9 However, the thermal decomposition kinetics of PEEK/ MWCNT composites modified with ILs is essential for the rational design of molding and thermoplastic processing techniques. 10,11 Thus, kinetic modeling of thermal degradation is necessary to fully elucidate the effect of ILs on PEEK/MWCNT composites.…”

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confidence: 99%

Evaluation thermal degradation kinetics of ionic liquid assisted polyetheretherketone‐multiwalled carbon nanotubes composites

Ahmad

Mansor

Mahmood

et al. 2023

J of Applied Polymer Sci

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The incorporation of multiwalled carbon nanotubes (MWCNT) into polyetheretherketone (PEEK) composites has emerged as a promising strategy for enhancing the thermomechanical characteristics of PEEK composite materials. This study investigates the thermal behavior and kinetics prediction of PEEK/MWCNT composites comprising different ionic liquids (ILs), namely 1‐butyl‐3‐methylimidazolium hydrogen sulfate ([BMIM]HSO4), 1‐butyl‐3‐methylimidazolium acetate ([BMIM]Ac), 1‐ethyl‐3‐methylimidazolium acetate ([EMIM]Ac) and 1‐ethyl‐3‐methylimidazolium hydrogen sulfate ([EMIM]HSO4). Three non‐isothermal methods Coats‐Redfern, Broido, and Horowitz‐Metzger, were employed to model the thermal decomposition profiles of fabricated composites to calculate the activation energy. The highest decomposition temperature (580°C) was obtained for [BMIM]HSO4‐based PEEK/MWCNT composites. Moreover, a 3%–8% increase in the activation energy was obtained compared to PEEK/MWCNT manufactured without ILs. The Coats‐Redfern model was superior to Broido and Horowitz‐Metzger models in modeling the thermal degradation of developed composites, as evidenced from the higher value of the coefficient of determination (R2 ≥ 0.9899). By determining the Root Mean Square Error (RMSE) and R2 for the thermal degradation kinetics data, the artificial neural network (ANN) model was employed. The ANN model accurately predicted the mass loss curves, exhibiting R2 ≥ 0.9815 for the designed model. These findings can assist in establishing an IL‐assisted benign approach for PEEK/MWCNT/IL composites with superior thermal characteristics.

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“…However, in this review we do not include studies where ionic liquids (ILs) have been blended with polymer nanoparticle mixtures [ 23 , 24 , 25 , 26 , 27 ] in order to improve the dispersion of the nanoparticles in the matrix. Nor do we consider nanocomposite materials in which ionic liquids have been used as compatibilizers [ 28 , 29 , 30 ] or plasticizers [ 31 , 32 ] nor nanofluids synthesized by polymer physical adsorption or covalent bonding, in order to achieve nanoparticle dispersion in the matrix.…”

Section: Introductionmentioning

confidence: 99%

From Ionic Nanoparticle Organic Hybrids to Ionic Nanocomposites: Structure, Dynamics, and Properties: A Review

Karatrantos

Mugemana²,

Bouhala³

et al. 2022

Nanomaterials

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Ionic nanoparticle organic hybrids have been the focus of research for almost 20 years, however the substitution of ionic canopy by an ionic-entangled polymer matrix was implemented only recently, and can lead to the formulation of ionic nanocomposites. The functionalization of nanoparticle surface by covalently grafting a charged ligand (corona) interacting electrostatically with the oppositely charged canopy (polymer matrix) can promote the dispersion state and stability which are prerequisites for property “tuning”, polymer reinforcement, and fabrication of high-performance nanocomposites. Different types of nanoparticle, shape (spherical or anisotropic), loading, graft corona, polymer matrix type, charge density, molecular weight, can influence the nanoparticle dispersion state, and can alter the rheological, mechanical, electrical, self-healing, and shape-memory behavior of ionic nanocomposites. Such ionic nanocomposites can offer new properties and design possibilities in comparison to traditional polymer nanocomposites. However, to achieve a technological breakthrough by designing and developing such ionic nanomaterials, a synergy between experiments and simulation methods is necessary in order to obtain a fundamental understanding of the underlying physics and chemistry. Although there are a few coarse-grained simulation efforts to disclose the underlying physics, atomistic models and simulations that could shed light on the interphase, effect of polymer and nanoparticle chemistry on behavior, are completely absent.

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Effect of ionic liquids on thermomechanical properties of polyetheretherketone‐multiwalled carbon nanotubes nanocomposites

Cited by 18 publications

References 51 publications

Experimental Study of Mechanical Properties of Polypropylene Random Copolymer and Rice-Husk-Based Biocomposite by Using Nanoindentation

Experimental Study of Mechanical Properties of Polypropylene Random Copolymer and Rice-Husk-Based Biocomposite by Using Nanoindentation

Evaluation thermal degradation kinetics of ionic liquid assisted polyetheretherketone‐multiwalled carbon nanotubes composites

From Ionic Nanoparticle Organic Hybrids to Ionic Nanocomposites: Structure, Dynamics, and Properties: A Review

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