材料科学
复合材料
硅酮
壳体(结构)
相变
电池(电)
有机硅树脂
相变材料
电子设备和系统的热管理
相(物质)
化学工程
热的
涂层
机械工程
功率(物理)
工程物理
量子力学
化学
物理
有机化学
气象学
工程类
作者
Rong Chen,Xinlei Ge,Xinxi Li,Guoqing Zhang,Jiangyun Zhang,Xiufang Ke
标识
DOI:10.1016/j.compscitech.2022.109662
摘要
Microencapsulation is commonly adopted to improve the stability and expand the application of phase change materials. We developed a novel phase change microcapsule with MQ silicone resin (MQ), a typical organic-inorganic hybrid polysiloxane, as its shell material through a simple preparation process. Its morphology, including its core-shell microstructure and size distribution, was observed via scanning electron microscopy, transmission electron microscopy, and laser diffraction particle size analysis. The microcapsule exhibited the best thermal properties and shape stability at a core-shell ratio of 2:1, where the thermal energy storage capacity was 80.21 kJ kg −1 . It was then composited with silicone rubber (SR) to form a composite. Owing to the chemical structure of MQ, the microcapsule presented enhanced mechanical properties with the SR matrix. When the composite was used for battery thermal management of a commercial prismatic LiFePO 4 battery at 1C, the maximum temperature could be reduced by more than 10 °C, and the maximum temperature difference could be controlled within 5 °C. • MQ silicone resin was first used as shell material of microcapsules. • One-pot method simplified encapsule process. • The novel microcapsules could enhance the mechanical properties of silicone rubber. • Microcapsule was used for battery thermal equalization management.
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