From low conductivity to high energy efficiency: The role of conductive polymers in phase change materials

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160804 - 160804

Published: Feb. 1, 2025

Language: Английский

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Mechanically strong, healable, and recyclable supramolecular solid–solid phase change materials with high thermal conductivity for thermal energy storage

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 494, P. 153235 - 153235

Published: June 17, 2024

Language: Английский

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Integration of sustainable polymers with phase change materials

Progress in Materials Science, Journal Year: 2025, Volume and Issue: unknown, P. 101447 - 101447

Published: Jan. 1, 2025

Language: Английский

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Super‐Flexible Water‐Proof Actuators

Small, Journal Year: 2024, Volume and Issue: 20(33)

Published: March 27, 2024

Humidity-responsive materials hold broad application prospects in sensing, energy production, and other fields. Particularly, humidity-sensitive, flexibility, water resistance are pivotal factors the development of optimized humidity-responsive materials. In this study, hydrophobic linear polyurethane hydrophilic 4-vinylphenylboronic acid (4-VPBA) form a semi-intercross cross-linking network. This copolymer exhibits excellent mechanical properties, resistance. Its maximum tensile strength elongation can reach 40.56 MPa 543.47%, respectively. After being immersed at various temperatures for 15 days, it exhibited swelling ratio only 3.28% 5 °C 9.58% 70 °C. While presence 4-VPBA network imparts reversible, multidirectional bending abilities, under stimulus vapor, bend 43° within 1.4 s. The demonstrated material surpasses current bidirectional humidity actuators actuating ability. Based on these characteristics, automatically opening waterproof umbrellas windows, as well bionic-arms, crawling robots, self-propelled boats, successfully developed.

Language: Английский

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Poly(ethylene glycol)-Based Reprocessed Solid–Solid Phase Change Materials with Dynamic Semi-interpenetrating Network for Efficient Energy Storage and Thermal Management

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(20), P. 7778 - 7790

Published: May 9, 2024

Reprocessed solid–solid phase change materials (RSSPCMs) possess significant potential for energy conservation and sustainable utilization, making them a popular choice battery thermal management (BTM). Currently, the design of RSSPCMs still faces challenges in terms their enthalpy efficiency mechanical properties. In this study, typical semi-interpenetrating network (semi-IPN) has been constructed by incorporating dynamic disulfide cross-linking PEG. It displays 99.97% enthalpic 90.7% damage healing efficiency. Their latent heat (75.86–110.64 J/g) temperature (49.9–57.4 °C) can be easily tailored adjusting The semi-IPN structure provides with high reliability, stability, shape excellent Furthermore, 7.5–9.7 MPa tension stress 430–640% strain demonstrate that self-healing ability after exposure to thermal/infrared stimulus without changes chemical or behavior. This work delivers new route develop storage (TES) efficiency, capabilities, reprocessability.

Language: Английский

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Enabling High Strength and Toughness Polyurethane through Disordered‐Hydrogen Bonds for Printable, Recyclable, Ultra‐Fast Responsive Capacitive Sensors

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 14, 2024

Abstract The rapid advancement of smart, flexible electronic devices has paralleled a surge in waste (e‐waste), exacerbating massive resource depletion and serious environmental pollution. Recyclable materials are extensively investigated to address these challenges. Herein, this study designs unique polyurethane (SPPUs) with ultra‐high strength up 60 MPa toughness 360 MJ m −3 . This synthetic SPPUs can be fully recycled at room temperature by using green solvents ethanol. Accordingly, the resultant SPPU‐Ni composites, created mixing ethanol‐dissolved solution nickel (Ni) powder, effectively combine flexibility recyclability electrical conductivity filler. Notably, work develops printable capacitive sensors (PCBS) through transcribing paste SPPUs‐Ni slurry onto PET film paper screen‐printing technology. devised PCBS have fast response time ≈50 ms, high resolution, multiple signal recognition capabilities. Remarkably, Ni powder only dissolving offers sustainable growing e‐waste problem recyclable electronics.

Language: Английский

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Robust liquid crystal semi-interpenetrating polymer network with superior energy-dissipation performance

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Nov. 15, 2024

Liquid crystal networks (LCN) have attracted surging interest as extraordinary energy-dissipation materials owning to their unique dissipation mechanism based on the re-orientation of mesogens. However, how integrate high Young's modulus, good efficiency and wide effective damping temperature range in LCN remains a challenge. Here, we report strategy resolve this challenge by fabricating robust liquid semi-interpenetrating polymer network (LC-semi-IPN) consisting crystalline LC polymers (c-LCP). LC-semi-IPN demonstrates superior synergistic performance both mechanical properties, surpassing all currently reported LCNs. The crystallinity c-LCP endows with substantial leap modulus (1800% higher than single network). chain reptation also promotes an enhanced 200%. Moreover, its reaches up 130 °C, which is widest for By leveraging exceptional performance, can be further utilized functional architected structure density deformation-resistance. design energy achieving simultaneously properties challenging. authors fabricate properties.

Language: Английский

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A Perspective on Carbon–Carbon Diradical-Mediated Dynamic Covalent Synthesis of Organic Macrocycles and Their Emerging Functions

Crystal Growth & Design, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 15, 2025

A biological self-assembly of organized supramolecular structures and functional materials has emerged as a significant research focus in recent decades. Different strategies have been proposed successfully adopted for engineering complex structures. Among others, substantial progress made using dynamic covalent chemistry (DCC) to generate with sophisticated properties. This Perspective elaborates on the role carbon–carbon (C–C)-based diradical-based DCC self-assembly. It provides an in-depth discussion structural aspects C–C bonds discrete oligomer formation including dimers, trimers, tetramers, hexameric Early sections survey critical factors contributing longevity stability radical systems influences substitution diradicals into dimers or macrocycles. Significant attention given characteristics diradical impact hydrogen π–π interactions configurations self-assembled The latter part this article properties applications DCC-mediated primary objectives review are (i) present detailed analysis benefits associated diradical-mediated (ii) investigate their

Language: Английский

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Tough, High-Strength and Recyclability Polyurethane Elastomers Via Woven Crosslinking Strategy

Published: Jan. 1, 2025

Language: Английский

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Thermally conductive and self-healable phase change nanocomposites from phenylnaphthalene Monomer, and programmed heat transfer materials derived therefrom for advanced thermal management systems

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161680 - 161680

Published: March 1, 2025

Language: Английский

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