Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (2): 20210619.doi: 10.7503/cjcu20210619

• Material Chemistry • Previous Articles     Next Articles

Preparation and Properties of Cu Particles Loaded Foam-based Phase Change Composites

CHU Yao1, WANG Shuo1, ZHANG Zinuo1, WANG Yibo1, CAI Yibing1,2()   

  1. 1.Key Laboratory of Eco?Textiles of the Ministry of Education, Jiangnan University, Wuxi 214122, China
    2.Anhui Engineering Research Center for Bioprotein Fiber Composites, Lu’an, 237012, China
  • Received:2021-09-16 Online:2022-02-10 Published:2021-11-11
  • Contact: CAI Yibing E-mail:yibingcai@jiangnan.edu.cn
  • Supported by:
    the National Key R&D Program of China(2017YFB0309100);the Equipment Pre-research Joint Fund of Ministry of Education, China(6141A02022267);the Undergraduate Innovation and Training Program of Jiangsu Province, China(2021045Z);the Project of Lu’an Ocean Feather Co., Ltd, China(210187)

Abstract:

The carbon foam(CF) was made from melamine foam(MF) through high temperature carbonization, and was utilized as supporting matrix. The copper particles were deposited on the foam skeleton by redox reaction with copper chloride(CuCl2) and hydrazine hydrate(N2H4·H2O) as precursors. Subsequently, polyethylene glycol(PEG) was encapsulated into the matrix to fabricate phase change composites by vacuum impregnation method. The structural morphology and thermal properties of the fabricated phase change composites were studied by scanning electron microscopy(SEM), X-ray diffraction(XRD), differential scanning calorimetry(DSC) and Infrared thermal imager. The results showed that the Cu particles were uniformly and densely deposited on the skeleton surface of CF when the concentration of CuCl2 solution was 1.0 mol/L. The fabricated phase change composite demonstrated good leakage-proof property, the phase change latent heat was as high as 145.2 J/g, the thermal efficiency was higher than 80%, and the photo-thermal conversion efficiency reached up to 83.8 %, which exhibiting excellent heat storage capacity and temperature regulation performance. This paper provides a strategy for the fabrication of phase change composites with excellent comprehensive performances, which is conducive to broaden its applications.

Key words: Phase change composite, Copper particles, Melamine foam, Thermal energy storage property

CLC Number: 

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