Sustainable halogen-free polymer composites for next-generation flexible electronics

Journal of Nanoparticle Research, Год журнала: 2025, Номер 27(2)

Опубликована: Янв. 30, 2025

Язык: Английский

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A model for effective conductivity of polymer nanocomposites containing MXene nanosheets

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Abstract This paper introduces a groundbreaking model to evaluate the conductivity of nanocomposites comprising MXene nanosheets. The simulates effective considering dimensions, volume fraction, interphase thickness, percolation threshold, contact distance, and tunneling resistance. model's predictions align well with empirical results obtained various laboratory samples. scrutiny elements impacting is affirmed, given assumption resistance operation MXene/interphase network. Slender nanosheets expansive contacts lead an elevated level conductivity. Moreover, shows direct correlation loading, while higher onset produces poorer Based on outputs, insulative nanocomposite identified via thinnest ( < 1 nm), thickest t > 4 smallest fraction 0.01), lowest percentage networked 0.05). Contrariwise, most remarkable as 25.6 S/m attained by = nm). In addition, narrowest tunnels (tunneling distance nm) yield uppermost 6.2 in system. Highlights study proposes for polymer nanocomposites. size, depth, are considered. agree experimental data several A bigger area thicker interphase. (1 produce S/m.

Язык: Английский

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Balancing processability and percolation behavior of ultrahigh aspect ratio carbon nanotubes in polymers through ball milling

Polymer Composites, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Abstract The effects of ball milling on the processability and percolation behavior ultralong (~100 μm) carbon nanotubes (CNTs) in an amorphous thermoplastic polymer, polycarbonate, were examined. Burgio–Rojac model was applied to establish relationship between impact energy milled CNT morphology. minimum single for fracture CNTs (125 mJ/impact) found be nearly order magnitude greater than that short, commercial (~10 due bundle diameter size differences. kinetic length reduction align with previously studied short CNTs, allowing accurate prediction based cumulative energy. Ball 50, 20, 5 μm lengths resulted composite melt viscosity reductions 26%, 52%, 58%, respectively. A moderate increase degradation temperature increased duration (+7°C suggested polymer molecular weight is preserved. However, significant increases rheological electrical thresholds vs. unmilled formation small, undispersed agglomerates, suggesting a balance must struck when employing as processing aid composites filled high aspect ratio fillers. Highlights Length kinetics are similar CNTs. improves by reducing agglomeration. Highly aligned bundles do not disperse well during mixing. results threshold shortening.

Язык: Английский

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Enhancement of electrical properties of cold welding doped using CNTs

MRS Advances, Год журнала: 2024, Номер unknown

Опубликована: Дек. 16, 2024

Язык: Английский

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