Materials Reports 2021, Vol. 35 Issue (Z1): 495-500 |
POLYMERS AND POLYMER MATRIX COMPOSITES |
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Influence of Structure and Properties of Porous Carrier on Thermal Properties of Multi-scale Porous PCMs Composite: a Review |
LI Weipei1, HE Shijie1, QIU Zhiming1, WU Songping2, YAN Yurong1
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1 School of Materials Science and Engineering, South China University of Technology, Guangdong 510640, China 2 School of Chemistry and Chemical Engineering, South China University of Technology, Guangdong 510640, China |
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Abstract Phase change energy storage technology is an effective way to alleviate the contradiction between energy supply and demand. For phase change materials (PCMs), PCMs characterized by the solid-liquid transition are commonly used due to their higher phase change enthalpy and smaller volume change. However, the leakage of liquid PCMs during the phase change process is the key issue in actual application fields. Encapsulating of PCMs in porous materials has been fulfilled for the effectively alleviation of the leakage problem. Here, Influence of perspectives factors on the thermodynamic properties of porous composite PCMs were summarized, such as the of pore size of porous carrier, pore structure, the interaction between the pore surface and the PCMs. Results showed that micrometer-scale pores help the leakage of liquid PCMs. The small-sized mesoporous structure restricts the movement of PCMs molecules and reduces its crystallinity. For carrier with hierarchical porous structure, the micropores can provide capillary force to adsorb PCMs molecules, the macropores serving as a storage cavity to the PCMs, and acted as a bridge connecting small pores and macropores, thus the composite material has a good comprehensive performance. The effects of compatibility and hydrogen bonding between the carrier and PCMs on the adsorption capacity and phase transition enthalpy of the composite are discussed, and the research tendency of porous composite PCMs is prospected.
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Published: 16 July 2021
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Fund:National Natural Science Fund (51873074). |
About author:: Weipei Li, master of South China University of technology, is a graduate student. His main research direction is the packaging research of phase change energy storage materials and the research of intelligent wearable functional fiber. He has participated in a number of national, provincial and ministerial level projects and enterprise research projects, and applied for two invention patents.Yurong Yan, professor and doctoral supervisor, obtained her Ph.D degree from South China University of Technology in 2002, and has worked in the university since then. She worked as a postdoctoral researcher in Guangdong Xinhui Meida Nylon Co., Ltd during 2005-2007, visiting scholar at Akron University, USA in 2007, and visiting professor at Empa, Swiss Federal Laboratories for Materials Science and Technology, Switzerland in 2017. She currently serves as a vice chairman of the Fiber Materials Sub-Teaching Steering Committee and a member of the Non-woven Materials Sub-teaching Steering Committee in the Textile Specialty Teaching Steering Committee of the Ministry of Education, an executive member on the Board of the Fiber Material Modification and Composite Technology Branch of Chinese Materials Research Society, and a member on the board of China Chemical Fiber Association. Her team's research interests focus on electrospinning processing and its related application fields on filtration, biomedical materials, high-efficiency catalysis, sound insulation, battery separators and electrode materials, the forming mechanism of bicomponent spinning and functional fibers, smart wearable functional fibers, fiber forming and fictionalization of biodegradable polymeric materials, and anode materials for alkaline metal batteries, etc. She has presided over and participated as a second member on more than 30 supported by national, provincial research projects and industrial-related corporate scientific research projects, published more than 160 papers in Chinese or English, has 19 authorized Chinese Invention Patents and 17 Chinese Utility Model Patents, contributed as an editor publishing 1 professional textbook in Chinese, as a co-author for 6 professional books in Chinese and 4 professional books in English. During the past ten years. |
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