针对传统辐射制冷材料在高热流冲击下散热能力不足的问题,提出一种基于相变储热与辐射制冷协同作用的复合调温材料(PCM-RC),以实现双作用机制下的高效低能耗热管理。该材料采用熔融共混与乳液涂覆相结合的方法制备而成,外层辐射制冷材料的高太阳反射率(91%)及中红外发射率(93%)可将热量以反射、辐射的形式传递至外太空,内层定形相变材料通过相态转变以潜热(106.32kJ/kg)的形式吸收并暂存多余热量,从而增强高效热调控能力。热管理性能测试结果表明,在2000W/m2加热功率,PCM-RC可使热源的温升降低约17℃,为高热流冲击下的高效热管理提供了新的材料设计思路。
To address the insufficient heat-dissipation capacity of conventional radiative cooling materials under high heat-flux impact,a composite temperature-regulating material (PCM-RC) based on the synergistic effect of phase-change energy storage and radiative cooling was developed for highly efficient,low-energy consumption thermal management through a dual-action mechanism.The PCM-RC was fabricated using a combined method of melt blending with emulsion coating.The outer RC layer exhibited high solar reflectance (91%) and mid-infrared emissivity (93%),effectively dissipating heat to outer space via reflection and thermal radiation.Meanwhile,the inner shape-stabilized phase change material could absorb and temporarily store excess heat in the form of latent heat (106.32kJ/kg) through phase transition,thereby enhancing the efficient thermal regulation capability.Thermal management tests demonstrated that under a heating power of 2000W/m2,the PCM-RC reduced the temperature rise of the heat source by approximately 17℃,providing a novel material design paradigm for efficient thermal management under high-heat-flux impacts.
[1] Zhong Y,He X,Wang W,et al.Performance enhancement of graphite-based flexible composite phase change materials and heat dissipation characteristics of electronic devices[J].Applied Thermal Engineering,2025,263:125393.
[2] Su W,Guo Z,Chang Z,et al.Self-encapsulation ultra-soft micro-channel with high thermal conductivity and passive radiation cooling[J].Chemical Engineering Journal,2025,503:158220.
[3] Shi X,Liu C,Lin B,et al.3D printed cellulose nanofiber/silica nanoparticle scaffolds for daytime radiative cooling[J].Additive Manufacturing,2024,92:104392.
[4] 王晗,袁礼,王超,等.周期性分流微通道的结构设计及散热性能[J].物理学报,2021,70(10):200-211.
[5] Kumar M S,Balasubramanian K R,Maheswari L.Effect of temperature on solar photovoltaic panel efficiency[J].International Journal of Engineering and Advanced Technology,2019,8(6):2593-2595.
[6] Faraji H,Yıldız Ç,Arshad A,et al.Passive thermal management strategy for cooling multiple portable electronic components:hybrid nanoparticles enhanced phase change materials as an innovative solution[J].Journal of Energy Storage,2023,70:108087.
[7] Yin X,Yang R,Tan G,et al.Terrestrial radiative cooling:using the cold universe as a renewable and sustainable energy source[J].Science,2020,370(6518):786-791.
[8] 刘熙远,傅强,邓华.多功能聚合物基辐射制冷材料的发展近况及应用[J].高分子通报,2025,38(4):572-589.
[9] Jiang T,Lei S,Wang F,et al.All-polymer superhydrophobic radiative cooling coating based on polytetrafluoroethylene/polydimethylsiloxane composites[J].Industrial & Engineering Chemistry Research,2023,62(12):5024-5034.
[10] Niu J,Zhou W,Bai J,et al.A multi-scale particles doped ETFE based self-cleaning coating for passive daytime radiative cooling[J].Materials Today Communications,2024,39:108918.
[11] Li X,Peoples J,Yao P,et al.Ultrawhite BaSO4 paints and films for remarkable daytime subambient radiative cooling[J].ACS Applied Materials & Interfaces,2021,13(18):21733-21739.
[12] Paul D,Nandi A,Bhattacharyya S,et al.A comprehensive review on lithium-ion battery thermal management (BTM) using phase change materials:advances,challenges,and future perspectives[J].Journal of Thermal Analysis and Calorimetry,2025,150:9669-9722.
[13] Lao J,Fu W,Ma J,et al.Preparation and properties of thermal management materials for electronic devices using stearic acid/expanded graphite composite phase change material with enhanced thermal conductivity[J].Chemistry Select,2025,10(10):e202500179.
[14] Gür M,Gürgenç E,Cosşanay H,et al.Novel nano-Y2O3/myristic acid nanocomposite PCM for cooling performances of electronic device with various fin designs[J].Journal of Energy Storage,2024,100:113646.
[15] Song K,Liu F,Song J,et al.Flexible phase change composites with excellent thermal energy storage for the thermal management of electronic devices[J].ACS Applied Polymer Materials,2024,6(24):15105-15113.
[16] Zhang Q,Xue T,Tian J,et al.Polyimide/boron nitride composite aerogel fiber-based phase-changeable textile for intelligent personal thermoregulation[J].Composites Science and Technology,2022,226:109541.
[17] Gao Y,Meng X.A comprehensive review of integrating phase change materials in building bricks:methods,performance and applications[J].Journal of Energy storage,2023,62:106913.
[18] Zhang Q,Yu K,Pan Y,et al.Encapsulation and functionalization strategies of organic phase change materials in medical applications[J].Journal of Thermal Analysis and Calorimetry,2024,149(10):4333-4366.
[19] 李昭,李宝让,陈豪志,等.相变储热技术研究进展[J].化工进展,2020,39(12):5066-5085.
[20] Kant K,Biwole P H,Shamseddine I,et al.Recent advances in thermophysical properties enhancement of phase change materials for thermal energy storage[J].Solar Energy Materials and Solar Cells,2021,231:111309.
[21] Emeema J,Murali G,Reddi B V,et al.Investigations on paraffin wax/CQD composite phase change material-improved latent heat and thermal stability[J].Journal of Energy Storage,2024,85:111056.
[22] Xu X,Zhang X,Ji J,et al.Comparative analysis of additives for increasing thermal conductivity of phase change materials:a review[J].Energy & Fuels,2022,36(10):5088-5101.
[23] Yang M,Zhong H,Li T,et al.Phase change material enhanced radiative cooler for temperature-adaptive thermal regulation[J].ACS Nano,2023,17(2):1693-1700.
[24] Aili A,Wei Z Y,Chen Y Z,et al.Selection of polymers with functional groups for daytime radiative cooling[J].Materials Today Physics,2019,10:100127.
基金资助
河南省自然科学基金项目(232300420310);河南工业大学创新基金计划项目(2022ZKCJ07);国家自然科学基金青年项目(52108134)
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