高等学校化学学报 ›› 2022, Vol. 43 ›› Issue (2): 20210619.doi: 10.7503/cjcu20210619

• 材料化学 • 上一篇    下一篇

铜粒子负载泡沫基相变复合材料的制备与性能

储瑶1, 王烁1, 张子诺1, 王艺博1, 蔡以兵1,2()   

  1. 1.江南大学生态纺织教育部重点实验室, 无锡 214122
    2.安徽省生物蛋白纤维复合材料工程研究中心, 六安 237012
  • 收稿日期:2021-09-16 出版日期:2022-02-10 发布日期:2021-11-11
  • 通讯作者: 蔡以兵 E-mail:yibingcai@jiangnan.edu.cn
  • 基金资助:
    国家重点研发计划项目(2017YFB0309100);装备预研教育部联合基金(6141A02022267);江苏省大学生创新创业训练计划(2021045Z);六安市海洋羽毛有限公司项目(210187)

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)

摘要:

以三聚氰胺泡沫(MF)经高温碳化后制得的碳泡沫(CF)为基体, 以氯化铜(CuCl2)和水合肼(N2H4·H2O)溶液为前驱体, 利用氧化还原反应在泡沫骨架上生成铜粒子, 然后通过真空浸渍法将聚乙二醇(PEG)封装在基体中制得相变复合材料. 利用扫描电子显微镜(SEM)、 X射线衍射仪(XRD)、 差示扫描量热仪(DSC)和红外热成像仪等研究了相变复合材料的形貌、 结构和热性能. 结果表明, 当CuCl2浓度为1.0 mol/L时, Cu粒子均匀致密地沉积在CF骨架表面, 制得的相变复合材料在具备良好密封性能的前提下, 相变潜热可高达145.2 J/g, 热效率超过80%, 光热转换效率达到83.8%, 且呈现出优异的储热能力和调温性能. 本文为制备综合性能优异的相变复合材料提供了一种策略, 有利于拓宽相变复合材料的应用领域.

关键词: 相变复合材料, 铜粒子, 三聚氰胺泡沫, 储热性能

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

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