3D-architectured MXene/thermally expandable microsphere composites with synergistic thermal insulation and photothermal conversion

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-09-26 DOI:10.1016/j.porgcoat.2025.109689

Wenjing Xie , Jiajiu Liang , Guangtao Chang , Ruoxin Li

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引用次数: 0

Abstract

Driven by increasing global energy consumption, smart textiles for personal thermal management, offering energy saving and dynamic temperature regulation, have garnered significant attention. This study introduces an all-weather personal thermal management textile engineered with three-dimensional structured MXene nanosheets, achieving bidirectional temperature control through passive thermal insulation and active photothermal conversion. Fabricated by electrostatically adsorbing MXene nanosheets onto hollow, thermally expandable microspheres (TEMs) and incorporating these MXene/TEMs composites as fillers in polyurethane coatings on cotton fabrics, the resulting textile exhibited exceptional thermal management capabilities. Experimentally, the coating exhibited a low thermal conductivity of 0.031 W m⁻¹ K⁻¹ and demonstrated remarkable photothermal performance, with 93.5 % solar absorption and 28.5 % conversion efficiency. In passive mode, the 0.8 mm coating can increase simulated skin temperature by 4.2 °C, while in active mode, rapid warming of 15.8 °C within 30 s under solar irradiation was achieved with minimized heat loss. In addition to the low-density characteristics, the coatings also exhibit excellent mechanical strength, flexibility, breathability, and water vapor transmission. This smart textile, based on the synergy of thermal conductivity inhibition and efficient photothermal conversion, presents a novel strategy for lightweight and versatile all-weather personal thermal management textiles with broad application potential.

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具有协同隔热和光热转换的3d结构MXene/热膨胀微球复合材料

在全球能源消耗不断增长的推动下，节能和动态温度调节的个人热管理智能纺织品受到了广泛关注。本研究介绍了一种全天候个人热管理纺织品，该纺织品采用三维结构MXene纳米片，通过被动隔热和主动光热转换实现双向温度控制。通过静电吸附MXene纳米片到中空的热膨胀微球（tem）上，并将这些MXene/ tem复合材料作为填料加入到棉织物的聚氨酯涂层中，得到的纺织品具有优异的热管理能力。实验结果表明，该涂层的导热系数为0.031 W m−1 K−1，具有良好的光热性能，太阳能吸收率为93.5%，转换效率为28.5%。在被动模式下，0.8 mm涂层可使模拟皮肤温度升高4.2°C，而在主动模式下，在太阳照射下30秒内快速升温15.8°C，热量损失最小。除了低密度特性外，该涂层还具有优异的机械强度、柔韧性、透气性和水蒸气透射性。这种智能纺织品基于热导抑制和高效光热转换的协同作用，提出了一种具有广泛应用潜力的轻质多功能全天候个人热管理纺织品的新策略。

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.