Reinforcement of poly (methyl methacrylate) by WS2 nanotubes towards antiballistic applications

Ghosh, Saptarshi; Otorgust, G.; Idelevich, Alexander; Regev, Omri; Lapsker, I.; Lewitus, Dan Y.; Zak, Alla

doi:10.1016/j.compscitech.2021.108736

Cited by 16 publications

(9 citation statements)

References 36 publications

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“…At the same time, the AR of 1D nanocrystals must be conserved. However, the effect of the forces applied during melt mixing on the AR of the NTs is poorly understood and rarely studied, 36 while it is a relevant factor in reinforcement of the polymer on addition of the 1D filler. Previous related studies paid little attention to the surface chemistry of the WS 2 NTs and to the effect of NT impurities, if present, on the degradation of PLA during melt mixing.…”

Section: Introductionmentioning

confidence: 99%

WS₂ Nanotubes as a 1D Functional Filler for Melt Mixing with Poly(lactic acid):Implications for Composites Manufacture

Magee

Tang

Ozdemir

et al. 2022

ACS Appl. Nano Mater.

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Multi-walled WS 2 nanotubes (NTs) with lengths ranging from 2 to 65 μm and widths from 50 to 110 nm were synthesized in a horizontal quartz-made reactor by a process yielding NTs with aspect ratios (ARs) between ∼40 and >1000. The NTs obtained were thermally stable in air up to 400 °C but were oxidized within the temperature range 400−550 °C to produce yellow WO 3 particles. Critically, 400 °C is well above the temperature used to mix additives with the majority of meltprocessable polymers. The hydrophilic WS 2 NTs were easily dispersed in poly(lactic) acid (PLA) using a twin-screw extruder, but the shear stresses applied during melt mixing resulted in chopping of the NTs such that the AR decreased by >95% and the tensile mechanical properties of the PLA were unchanged. Although the as-extruded unfilled PLA was >99% amorphous, the much-shortened WS 2 NTs had a significant effect on the crystallization behavior of PLA, inducing heterogeneous nucleation, increasing the crystallization temperature (T c ) by ∼3 °C and the crystalline content by 15%, and significantly increasing the rate of PLA crystallization, producing smaller and more densely packed spherulites. The reduction in the AR and the nucleating effect of WS 2 NTs for PLA are critical considerations in the preparation, by melt mixing, of composites of rigid 1D NTs and polymers, irrespective of the target application, including bone tissue engineering and bioresorbable vascular scaffolds.

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Section: Introductionmentioning

confidence: 99%

WS₂ Nanotubes as a 1D Functional Filler for Melt Mixing with Poly(lactic acid):Implications for Composites Manufacture

Magee

Tang

Ozdemir

et al. 2022

ACS Appl. Nano Mater.

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“…However, the sample of PUE-1%Al 2 O 3 appeared to have almost perforated damage after the impact. It can be inferred from the above figures that the coalescence of micro-holes lead to the nucleation and propagation of cracks [ 36 ]. In Figure 7 e,f, the picture and microscopic diagram of PUE-1%IL@Al 2 O 3 are quite different from those of the previous two.…”

Section: Resultsmentioning

confidence: 99%

“…It is worth mentioning that the strain hardening region of the PUE-IL@Al 2 O 3 is delayed. That can be explained by the fact that the addition of IL can make the composite material fully plasticized [ 36 ]. Therefore, the strain elongation of the PUE-IL@Al 2 O 3 composite material has increased.…”

Section: Discussionmentioning

confidence: 99%

Effects of Modified Al2O3-Decorated Ionic Liquid on the Mechanical Properties and Impact Resistance of a Polyurethane Elastomer

Gao

Zhang

et al. 2021

Materials

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In this work, a new composite material with excellent dynamic impact resistance and outstanding quasi-static mechanical properties was synthesized. The composite material is composed of a polyurethane elastomer and a novel nano-polymer. The nano-polymer was composed of silane coupling agent-modified alumina microspheres and functionalized ionic liquids by double bond polymerization. The universal testing machine and split Hopkinson pressure bar were used to characterize the compression behavior, strength and energy absorption of the composite materials under static and dynamic conditions. Additionally, the comprehensive mechanical properties of polyurethane elastomer with different nano-polymer loadings (0.5–2.5 wt.%) were studied. The results show that whether it was static compression or dynamic impact, the polyurethane elastomer with 1% nano-polymer had the best performance. For the composite material with the best properties, its compressive yield strength under the static compression was about 61.13% higher than that of the pure polyurethane elastomer, and its energy absorption of dynamic impacts was also increased by about 15.53%. Moreover, the shape memory effect was very good (shape recovery is approximately 95%), and the microscopic damage degree was relatively small. This shows that the composite material with the best properties can withstand high compression loads and high-speed impacts. The developed composite material is a promising one for materials science and engineering, especially for protection against compression and impacts.

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“…The first synthesis of WS 2 and MoS 2 inorganic nanotubes (INT, 1D) and fullerene-like nanoparticles (IF, 0D) was reported by Tenne in 1992 and 1993, respectively [ 7 , 8 ]. Since then, a number of engineered inorganic fullerene and nanotubes have been developed to mimic structural reinforcement for polymer blends and nanocomposite components, lubrication, catalysis, rechargeable batteries, solar cells, electronics [ 9 , 10 ] and, more recently, for antiballistic applications [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Biopolymer Nanocomposite Materials Based on Poly(L-lactic Acid) and Inorganic Fullerene-like WS2 Nanoparticles

Naffakh

2021

Polymers

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In the current study, inorganic fullerene (IF)-like tungsten disulphide (WS2) nanoparticles from layered transition metal dichalcogenides (TMDCs) were introduced into a poly (L-lactic acid) (PLLA) polymer matrix to generate novel bionanocomposite materials through an advantageous melt-processing route. The effectiveness of employing IF-WS2 on the morphology and property enhancement of the resulting hybrid nanocomposites was evaluated. The non-isothermal melt–crystallization and melting measurements revealed that the crystallization and melting temperature as well as the crystallinity of PLLA were controlled by the cooling rate and composition. The crystallization behaviour and kinetics were examined by using the Lui model. Moreover, the nucleating effect of IF-WS2 was investigated in terms of Gutzow and Dobreva approaches. It was discovered that the incorporation of increasing IF-WS2 contents led to a progressive acceleration of the crystallization rate of PLLA. The morphology and kinetic data demonstrate the high performance of these novel nanocomposites for industrial applications.

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Reinforcement of poly (methyl methacrylate) by WS2 nanotubes towards antiballistic applications

Cited by 16 publications

References 36 publications

WS₂ Nanotubes as a 1D Functional Filler for Melt Mixing with Poly(lactic acid):Implications for Composites Manufacture

WS₂ Nanotubes as a 1D Functional Filler for Melt Mixing with Poly(lactic acid):Implications for Composites Manufacture

Effects of Modified Al2O3-Decorated Ionic Liquid on the Mechanical Properties and Impact Resistance of a Polyurethane Elastomer

Biopolymer Nanocomposite Materials Based on Poly(L-lactic Acid) and Inorganic Fullerene-like WS2 Nanoparticles

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Reinforcement of poly (methyl methacrylate) by WS2 nanotubes towards antiballistic applications

Cited by 16 publications

References 36 publications

WS2 Nanotubes as a 1D Functional Filler for Melt Mixing with Poly(lactic acid):Implications for Composites Manufacture

WS2 Nanotubes as a 1D Functional Filler for Melt Mixing with Poly(lactic acid):Implications for Composites Manufacture

Effects of Modified Al2O3-Decorated Ionic Liquid on the Mechanical Properties and Impact Resistance of a Polyurethane Elastomer

Biopolymer Nanocomposite Materials Based on Poly(L-lactic Acid) and Inorganic Fullerene-like WS2 Nanoparticles

Contact Info

Product

Resources

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WS₂ Nanotubes as a 1D Functional Filler for Melt Mixing with Poly(lactic acid):Implications for Composites Manufacture

WS₂ Nanotubes as a 1D Functional Filler for Melt Mixing with Poly(lactic acid):Implications for Composites Manufacture