期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 129, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2019.105710
关键词
Energy materials; Thermal conductivity; Thermal properties; Biocomposite
资金
- National Natural Science Foundation of China [51433006, 51861165203]
- Sichuan Science and Technology Program [2019YJ0125]
- State Key Laboratory of Polymer Materials Engineering [sklpme2019-2-19]
- Fundamental Research Funds for the Central Universities
Phase change materials (PCMs) applied in the energy storage and temperature control system are crucial for energy conservation and environmental protection. In this work, boron nitride (BN)@chitosan (CS) scaffolds with three-dimensional (3D) porous structures were fabricated. And effective thermal conductive pathways could be created in the resultant scaffolds. By introducing polyethylene glycol (PEG) into the BN@CS scaffolds, composite PCMs with large latent heat of fusion and excellent shape-stability were obtained. In particular, a high thermal conductivity up to 2.77 W m(-1) K-1 could be reached at a relatively low content of BN (27 wt%). Moreover, they also exhibited a satisfactory energy storage density of 136 J g(-1). This work demonstrated a facile and environmentally friendly strategy to simultaneously achieve enhancement of thermal conductivity, high energy storage density, shape stability and outstanding thermal repeatability for composite PCMs, which held promising potential in waste heat recovery, cooling system and temperature control system.
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