Ultraflexible, cost-effective and scalable polymer-based phase change composites via chemical cross-linking for wearable thermal management

Nature Communications, Год журнала: 2023, Номер 14(1)

Опубликована: Дек. 5, 2023

Phase change materials (PCMs) offer great potential for realizing zero-energy thermal management due to superior storage and stable phase-change temperatures. However, liquid leakage solid rigidity of PCMs are long-standing challenges PCM-based wearable regulation. Here, we report a facile cost-effective chemical cross-linking strategy develop ultraflexible polymer-based phase composites with dual 3D crosslinked network olefin block copolymers (OBC) styrene-ethylene-butylene-styrene (SEBS) in paraffin wax (PW). The C-C bond-enhanced OBC-SEBS networks synergistically improve the mechanical, thermal, leakage-proof properties PW@OBC-SEBS. Notably, proposed peroxide-initiated method overcomes limitations conventional physical blending methods thus can be applicable across diverse polymer matrices. We further demonstrate portable flexible PW@OBC-SEBS module that maintains comfortable temperature range 39-42 °C personal thermotherapy. Our work provides promising route fabricate scalable composite management.

Язык: Английский

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Nano-enhanced organic form stable PCMs for medium temperature solar thermal energy harvesting: Recent progresses, challenges, and opportunities

Renewable and Sustainable Energy Reviews, Год журнала: 2022, Номер 161, С. 112321 - 112321

Опубликована: Март 12, 2022

Язык: Английский

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Magnetically tightened form-stable phase change materials with modular assembly and geometric conformality features

Nature Communications, Год журнала: 2022, Номер 13(1)

Опубликована: Март 16, 2022

Abstract Phase change materials have attracted significant attention due to their promising applications in many fields like solar energy and chip cooling. However, they suffer leakage during the phase transition process relatively low thermal conductivity. Here, through introducing hard magnetic particles, we synthesize a kind of magnetically tightened form-stable materials. They achieve multifunctions such as leakage-proof, dynamic assembly, morphological reconfiguration, presenting superior high (increasing 1400–1600%) electrical (>10 4 S/m) conductivity, prominent compressive strength, respectively. Furthermore, free-standing temperature control high-performance electric conversion systems based on these are developed. This work suggests an efficient way toward exploiting smart material for management electronics low-grade waste heat utilization.

Язык: Английский

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Encapsulation of inorganic phase change thermal storage materials and its effect on thermophysical properties: A review

Solar Energy Materials and Solar Cells, Год журнала: 2022, Номер 241, С. 111747 - 111747

Опубликована: Апрель 19, 2022

Язык: Английский

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Bifunctional Liquid Metals Allow Electrical Insulating Phase Change Materials to Dual-Mode Thermal Manage the Li-Ion Batteries

Nano-Micro Letters, Год журнала: 2022, Номер 14(1)

Опубликована: Окт. 10, 2022

Phase change materials (PCMs) are expected to achieve dual-mode thermal management for heating and cooling Li-ion batteries (LIBs) according real-time conditions, guaranteeing the reliable operation of LIBs in both cold hot environments. Herein, we report a liquid metal (LM) modified polyethylene glycol/LM/boron nitride PCM, capable managing through photothermal effect passive conduction. Its geometrical conformation pathways fabricated ice-template strategy conformable LIB's structure heat-conduction characteristic. Typically, soft deformable LMs on boron surface, serving as bridges reduce contact resistance among adjacent fillers realize high conductivity 8.8 7.6 W m-1 K-1 vertical in-plane directions, respectively. In addition, LM with excellent performance provides PCM efficient battery capability if employing controllable lighting system. As proof-of-concept, this is manifested heat an appropriate temperature range environment lower working by more than 10 °C at charging/discharging rate, opening opportunities durable evitable risk runaway.

Язык: Английский

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Investigation of physico-mechanical, thermal properties and solar thermoregulation performance of shape-stable attapulgite based composite phase change material in foam concrete

Solar Energy, Год журнала: 2022, Номер 236, С. 51 - 62

Опубликована: Март 4, 2022

Язык: Английский

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The marriage of two-dimensional materials and phase change materials for energy storage, conversion and applications

EnergyChem, Год журнала: 2022, Номер 4(2), С. 100071 - 100071

Опубликована: Фев. 22, 2022

Язык: Английский

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Recent advances in graphene-based phase change composites for thermal energy storage and management

Nano Materials Science, Год журнала: 2023, Номер 6(2), С. 115 - 138

Опубликована: Сен. 11, 2023

Energy storage and conservation are receiving increased attention due to rising global energy demands. Therefore, the development of materials is crucial. Thermal (TES) systems based on phase change (PCMs) have in prominence over past two decades, not only because their outstanding heat capacities but also superior thermal regulation capability. However, issues such as leakage low conductivity limit applicability a variety settings. Carbon-based graphene its derivatives can be utilized surmount these obstacles. This study examines recent advancements graphene-based composites (PCCs), where nanostructures graphene, oxide (GO), functionalized graphene/GO, aerogel (GA) incorporated into PCMs substantially enhance shape stability that could translated better capacity, durability, temperature response, thus boosting attractiveness for TES systems. In addition, applications PCCs various disciplines, buildings, solar utilization, battery management, discussed summarized.

Язык: Английский

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Diatom-based biomass composites phase change materials with high thermal conductivity for battery thermal management

Journal of Energy Storage, Год журнала: 2024, Номер 96, С. 112737 - 112737

Опубликована: Июнь 27, 2024

Язык: Английский

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Synchronous Visual/Infrared Stealth Using an Intrinsically Flexible Self‐Healing Phase Change Film

Advanced Functional Materials, Год журнала: 2023, Номер 33(13)

Опубликована: Янв. 17, 2023

Abstract Phase change materials (PCMs) have been particularly concerned as infrared stealth functional due to their superior thermal management capability. However, traditional PCMs usually behave rigid solid or flowing liquid states with fixed transition temperature, greatly limiting application especially in multi‐band and multiple scenes. Herein, an intrinsically flexible self‐healing phase film used for synchronous visual/infrared the first time is designed constructed. The possesses a solid–solid behavior adjustable temperature (from 38.8 51.1 °C) enthalpy 79.7 116.7 J g −1 ), long‐term cycling stability (500 cycles), outstanding performance. Remarkably, can be customized different colors various configurations exhibit attractive visual functions Additionally, owing property, this possess capability performance objectives at temperatures. Combining above unique functions, developed work may show great potential applications across wide range of scenarios

Язык: Английский

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