Perspective of electromagnetic wave absorbing materials with continuously tunable effective absorption frequency bands

Composites Communications, Journal Year: 2024, Volume and Issue: 50, P. 101993 - 101993

Published: July 9, 2024

Language: Английский

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Dielectric nanocomposites with superb high-temperature capacitive performance based on high intrinsic dielectric constant polymer

Nano Research, Journal Year: 2024, Volume and Issue: 17(9), P. 8504 - 8512

Published: July 13, 2024

Language: Английский

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Recent advances in sustainable biopolymer-based nanocomposites for smart food packaging: A review

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 279, P. 135583 - 135583

Published: Sept. 11, 2024

Language: Английский

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Molecular Simulation and Experimental Investigation of Enhanced Thermal and Dielectric Properties in Mica-Filled Polyimide Films

Polymer, Journal Year: 2025, Volume and Issue: 319, P. 128043 - 128043

Published: Jan. 8, 2025

Language: Английский

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Mesoporous hollow silica with controlled particle size for optimizing dielectric properties and coefficient of thermal expansion of polyimide packaging materials

Journal of Material Science and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Decoupling enhancements of breakdown strength and dielectric constant in PMIA-based composite films for high-temperature capacitive energy storage

Composites Part B Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 112013 - 112013

Published: Nov. 1, 2024

Language: Английский

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NVC-EMA Kopolimerinin ve Grafit ile Kompozitlerinin Hazırlanması, Karakterizasyonu, Termal ve Dielektrik Özellikleri

Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Journal Year: 2025, Volume and Issue: 15(1), P. 204 - 216

Published: Feb. 19, 2025

Bu çalışmada, işlenilebilirlik ve termal kararlılık gerektiren uygulamalar için polimer kompozit malzemeler çalışılmıştır. Aynı zamanda, enerji depolama uygulamaları dielektrik özellikleri araştırılmıştır. amaçla poli(N-vinil karbazol-ko-etil metakrilat), P(NVC-ko-EMA), kopolimeri serbest radikal polimerizasyonu yoluyla sentezlenmiş, özelliklerini geliştirmek grafit (GR) ile kompozitleri hazırlanmıştır. Kopolimerin bileşimi 1H-NMR spektroskopisi belirlenmiş, yapılan hesaplamalar bileşiminde %56 NVC %44 EMA birimlerinin olduğunu ortaya koymuştur. P(NVC0.56-ko-EMA) kompozitlerinin DSC analizleri, polimerin 119.98 oC olan camsı geçiş sıcaklığının, eklenmesi düştüğünü göstermiştir. TGA analizlerinde, polimere kıyasla katkılı kompozitlerin kararlılıklarının daha yüksek olduğu görülmüştür. Hem kopolimerin hem de ağırlıkça %10 içeren kompozitinin bozunma kinetiği Flynn-Wall-Ozawa (FWO) Kissinger-Akahira-Sunose (KAS) yöntemleriyle incelenmiştir. Hesaplamalar, GR katkılamasının ayrışma aktivasyon enerjisi değerini düşürdüğünü Yapılan ölçümlerinde, kompozitlerde artan konsantrasyonu sabiti (Ɛ') kayıp (Ɛ'') değerlerinin arttığı belirlenmiştir.

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Enhancing high-temperature capacitor performance of alumina-polyimide nanocomposites induced by the microscopic interface charge trap

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 162827 - 162827

Published: Feb. 1, 2025

Language: Английский

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Catalytic Properties and Structural Optimization of Solid Transesterification Catalysts to Enhance the Efficiency of Biodiesel Synthesis

Catalysts, Journal Year: 2025, Volume and Issue: 15(3), P. 239 - 239

Published: March 1, 2025

The transition to sustainable energy has given biodiesel prominence as a renewable alternative diesel. This review highlights the development and optimization of solid transesterification catalysts, contributing greatly efficiency synthesis. These heterogeneous catalysts are constituted titanium-, zinc-, bio-based systems significant advantages such reusability, thermal stability, ability be synthesized from low-grade feedstocks. Recent advancements in structural optimization, with nano-structured titanium dioxide having potential yielding higher production up yield 96–98% within 5–7 cycles, render improved stability catalytic performance. Several characterization techniques, Brunauer–Emmett–Teller method, X-ray diffraction, temperature-programmed desorption, instrumental these their effective design. However, despite substantial promise, there still problems dealt large-scale production, regeneration, service life catalysts. account collates recent innovations, analytical mechanisms, prospective directions which elucidate furthering technology chemicals.

Language: Английский

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A review on boron nitride reinforced polyimide-based nanocomposites for high-temperature capacitive energy storage: Challenges and recommendations

Journal of Thermoplastic Composite Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

The adoption of polyimide-based materials for high temperature related applications is receiving increased attention from the research community, particularly high-temperature capacitive energy storage. Polyimide matrix material has illustrated its effectiveness in design and manufacturing polymer-based dielectric capacitors, owing to intrinsic characteristics. However, modifying structure characteristics widespread using inorganic filler. present study reviewed recent advances on enhancement nanocomposite properties boron nitride fillers From literature, it worth noting that remain promising improving dielectric, breakdown strength, thermal conductivity, stability response polyimide nanocomposites favourable capacitors application. Additionally, storage density charge-discharge efficiency nitride-reinforced relation strength conductivity were thoroughly discussed. In conclusion, current challenges, which are associated with fabrication characterization presented, as well recommendation future directions this developing field.

Language: Английский

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