Thermo-mechanical degradation in ABS-Fe3O4 polymer nanocomposite due to repeated electromagnetic heating

Vattathurvalappil, Suhail Hyder; Kundurthi, Saratchandra; Drzal, Lawrence T.; Haq, Mahmoodul

doi:10.1016/j.compositesb.2020.108374

Cited by 12 publications

(9 citation statements)

References 28 publications

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“…Type-IV samples specified according to ASTM standards are used to characterize similar composite samples with nano/micro reinforcements. 3,6…”

Section: Methodsmentioning

confidence: 99%

“…Type-IV samples specified according to ASTM standards are used to characterize similar composite samples with nano/micro reinforcements. 3,6 Scanning electron microscopy (SEM) was used as a diagnostic tool for imaging the nano/micro reinforcements suspended within the polymer. Imaging was conducted on two sample configurations.…”

Section: Tensile Testing and Scanning Electron Microscopymentioning

confidence: 99%

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Hybrid nanocomposites—An efficient representative volume element formulation with interface properties

Vattathurvalappil

Haq

Kundurthi

2022

Polymers and Polymer Composites

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Reinforcement of polymers with multiple inclusions of varying length scales and morphologies enable enhancement and tailorability of thermo-mechanical properties in resulting polymers. Computational material models can eliminate the trial-and-error approach of developing these hybrid reinforced polymers, enable prediction of interphase properties, and allow virtual exploration of design space. In this work, computational models, specifically representative volume elements were developed for acrylonitrile butadiene styrene polymer reinforced with nanoscale iron oxide particles and micro-scale short carbon fibers. These representative volume elements were used to predict the tensile modulus of resulting polymer nanocomposite with varying particle concentrations, orientations, interphases, and clustering to realistically replicate the actual material as observed in optical and electron microscopy. The interphase elastic modulus was obtained through established analytical formulations and incorporated into the representative volume elements by defining an interphase region around the reinforcements. The tensile modulus estimated using representative volume elements agreed well with the experiments, evidently showing that the effective tensile modulus of the polymer nanocomposite increased with increase in interphase thickness, aspect ratio, and particle content. Clustering was only observed in Fe3O4 nanoparticles but its size did not have any effect on the effective tensile modulus. The developed computational modeling framework and the resultant prediction of tensile modulus offers a design path which can be extended to other polymer nanocomposites containing multiple inclusions.

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“…Type-IV samples specified according to ASTM standards are used to characterize similar composite samples with nano/micro reinforcements. 3,6…”

Section: Methodsmentioning

confidence: 99%

Section: Tensile Testing and Scanning Electron Microscopymentioning

confidence: 99%

Hybrid nanocomposites—An efficient representative volume element formulation with interface properties

Vattathurvalappil

Haq

Kundurthi

2022

Polymers and Polymer Composites

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“…The existence of sufficient thermal energy causes the hydrogen extraction to be activated to initiate oxidation and accelerate the overall degradation process [Tiganis et al 2002]. The thermal oxidative decomposition process of ABS is restricted to the poly(butadiene) rubbery phase as many researchers have published in the literature, while others suggest that the property decomposition is due to the combination of physical aging of the styrene phase and oxidation of the butadiene phase [Salman et al 1991;Amrishraj et al 2018;Balart et al 2019;Vattathurvalappil et al…”

Section: Introductionmentioning

confidence: 99%

Investigation of Structure, Thermal and Linear/Nonlinear Optical Properties of Acrylonitrile-Butadiene-Styrene/Nickel Chloride (ABS/NiCl 2 ) Composites for Optoelectronic Applications

Elsharkawy,

Azzam,

Elqahtani

et al. 2024

Preprint

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Acrylonitrile-butadiene-styrene/nickel chloride (ABS/NiCl2) composites are prepared using the casting method. Structure of these composites is investigated by XRD and FTIR spectroscopy. XRD measurements revealed that the structural properties of ABS host polymer have been modified after doping with NiCl2. Various structural parameters such as crystallite size (D), lattice strain (ε) and dislocation density (δ) are estimated. ATR-FTIR spectra exhibited a clear change in the intensity and position of some of the main bands of the ABS polymer such as, Ni(OH)2, C ≡ N, C = O and C = C which confirms the interaction between ABS terpolymer and NiCl2. Coats–Redfern approach has been applied to explore the effect of NiCl2 on the kinetics of thermal degradation of pure ABS and ABS/NiCl2 composites. The results showed that the activation energy of every thermal degradation stage increases with increasing NiCl2 content confirming that the thermal stability of ABS/NiCl2 composites has been enhanced. The optical parameters such as Urbach energy (EU) and bandgap energy (Eg) are investigated in terms of the absorption coefficient. The dispersion parameters such as, oscillator energy (E0), dispersion energy (Ed), transition moments (M− 1 and M− 3) and oscillator strength (f) are evaluated by applying the single oscillator model (SOM). Effect of NiCl2 on the linear/nonlinear optical (NLO) parameters is investigated. Our results clearly revealed that doping ABS with NiCl2 improved the nonlinear optical properties, which are preferred for optoelectronic device applications.

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“…The use of ferromagnetic nanoparticles such as Fe 3 O 4 has been widely explored to promote the thermal degradation of thermoplastic adhesives via EM heating, facilitating the detachment process. More specifically, when used to induce thermal degradation in ABS [ 32 , 33 ] and polypropylene copolymers [ 34 , 35 ], they proved to have good heating capabilities in comparison to other sources, such as microwave heating. However, their use in thermosetting adhesives for structural joints remains to be explored.…”

Section: Introductionmentioning

confidence: 99%

Fe3O4-Nanoparticle-Doped Epoxy Resin as a Detachable Adhesive by Electromagnetic Heating for GFRP Single-Lap Joints

et al. 2022

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An adhesive based on a Fe3O4-nanoparticle (MNP)-doped epoxy resin was proposed for the development of detachable adhesive joints with GFRP substrates. The analysis of cryofractures showed that the increasing MNP content promotes a higher presence of larger aggregates and a lower sedimentation of nanoparticles due to the higher viscosity of the mixture. In this regard, the inclusion of expandable microspheres (MS) induces a more uniform dispersion of MNPs, reducing their sedimentation. The capability of the proposed adhesives for electromagnetic (EM) heating was also evaluated, with increases in temperature of around 100 °C at 750 A, enough to reach the Tg of the polymer required to facilitate the adhesive detachment, which is around 80 °C. Finally, the lap shear strength (LSS) of 14 and 20 wt.% MNP samples was evaluated in a single-lap shear joint with simultaneous EM heating. The LSS values were reduced by 60–80% at 750 A, thus promoting successful adhesive joint detachment under EM heating.

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Thermo-mechanical degradation in ABS-Fe3O4 polymer nanocomposite due to repeated electromagnetic heating

Cited by 12 publications

References 28 publications

Hybrid nanocomposites—An efficient representative volume element formulation with interface properties

Hybrid nanocomposites—An efficient representative volume element formulation with interface properties

Investigation of Structure, Thermal and Linear/Nonlinear Optical Properties of Acrylonitrile-Butadiene-Styrene/Nickel Chloride (ABS/NiCl 2 ) Composites for Optoelectronic Applications

Fe3O4-Nanoparticle-Doped Epoxy Resin as a Detachable Adhesive by Electromagnetic Heating for GFRP Single-Lap Joints

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