储能科学与技术

• 储能XXXX •    

基于废旧烟头碳材料的复合相变材料制备及热物理性能研究

杨平川1(), 方钰涵3, 赖文蔚3, 刘昌会2()   

  1. 1.长沙理工大学体育学院，湖南 长沙 410114
    2.中国矿业大学低碳能源与动力工程学院，江苏 徐州 221116
    3.长沙理工大学能源与动力工程学院，湖南 长沙 410114
  • 收稿日期:2025-08-25 修回日期:2025-09-21 出版日期:2025-10-09
  • 通讯作者: 刘昌会 E-mail:yang.pch@163.com;liuch915@cumt.edu.cn
  • 作者简介:杨平川（1976-），男，本科，讲师，建筑节能，E-mail：yang.pch@163.com；
  • 基金资助:
    国家自然科学基金项目(51906252)

Preparation and Thermophysical Properties Study of Composite Phase Change Materials Based on Carbon Materials Derived from Waste Cigarette Butts

Pingchuan YANG1(), Yuhan FANG3, Wenwei LAI3, Changhui LIU2()   

  1. 1.School of Physical Education, Changsha University of Science and Technology, University, Changsha 410114, China
    2.School of Low-Carbon Energy and Power Engineering, China University of Mining and Technology University, Xuzhou 221116, China
    3.School of Energy and Power Engineering, Changsha University of Science and Technology, Changsha 410114, Hunan, China
  • Received:2025-08-25 Revised:2025-09-21 Online:2025-10-09
  • Contact: Changhui LIU E-mail:yang.pch@163.com;liuch915@cumt.edu.cn

PDF

0

摘要：

将废旧烟头进行资源化利用获得废旧烟头碳材料（WCBC），加入棕榈酸（PA）-硬脂酸（SA）-石蜡（PW）混合物制备得到PA-SA-PW/WCBC复合相变材料。采用扫描电镜（SEM）、X射线衍射仪（XRD）、红外光谱分析仪、差示扫描量热法（DSC）、热重分析仪（TG）、导热分析仪等对复合相变材料的微观形貌、化学相容性、储/释热性能、热稳定性等进行表征与测试，并测试样品形状稳定性及光热转换性能，探究废旧烟头碳材料对复合相变材料导热性能的强化效果。结果表明， WCBC与纯相变材料之间未发生化学反应，WCBC具备的片状结构可通过形成高效的导热通道，有效提高其导热性能，当WCBC添加质量分数为5 wt%时，复合相变材料导热系数提高12.80%，熔化潜热达到160.72 J·g-1。当光照时长为1180 s时，复合相变材料的温度较纯PA-SA-PW提高13.8 ℃，证明WCBC可有效提升相变材料的光热转换性能。废旧烟头碳材料在复合相变材料内部形成的导热通道，可改善复合相变材料导热性能与储热性能，为低成本体育馆建筑温度调控用复合相变材料开发提供新方案。

关键词: 相变, 复合材料, 焓, 废旧烟头, 光热转换

Abstract:

Waste cigarette butts were recycled to prepare waste cigarette butt carbon materials (WCBC), which were then incorporated into a mixture of stearic acid (SA), palmitic acid (PA), and paraffin wax (PW) to fabricate PA-SA-PW/WCBC composite phase change materials (CPCMs). The composite phase change materials were characterized and tested for their micromorphology, chemical compatibility, heat storage/release performance, and thermal stability using scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TG), and thermal conductivity analyzer. Additionally, the shape stability and photothermal conversion performance of the samples were evaluated, with a specific focus on investigating the enhancement effect of WCBC on the thermal conductivity of the composite phase change materials. The results indicated that no chemical reaction occurred between WCBC and the pure phase change material. The flake-like structure of WCBC enabled the formation of efficient thermal conduction pathways, thereby significantly improving thermal conductivity. When the mass fraction of WCBC was 5 wt%, the thermal conductivity of the composite phase change material increased by 12.80%, and the latent heat of fusion reached 160.72 J·g-1. After 1180 seconds of light irradiation, the temperature of the composite phase change material was 13.8 ℃ higher than that of pure PA-SA-PW, confirming that WCBC could effectively enhance the photothermal conversion performance of the phase change material. In summary, the thermal conduction pathways formed by WCBC within the composite phase change materials can improve their thermal conductivity and heat storage performance, providing a novel approach for the development of low-cost composite phase change materials for temperature regulation in stadium buildings.

Key words: Phase change, Composites, Enthalpy, Waste Cigarette Butt, Photothermal conversion

中图分类号: