储能科学与技术2026，Vol.15Issue(1)：49-57,9.DOI:10.19799/j.cnki.2095-4239.2025.0762
基于废旧烟头碳材料的复合相变材料制备及其热物理性能
Preparation and thermophysical properties of composite phase-change materials based on carbon materials derived from waste cigarette butts
摘要
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 their micromorphology,chemical compatibility,heat storage/release performance,and thermal stability were evaluated using scanning electron microscopy(SEM),X-ray diffraction(XRD),Fourier-transform infrared spectroscopy(FTIR),differential scanning calorimetry(DSC),thermogravimetric analysis(TGA),and thermal conductivity analysis.The shape-stability and photothermal conversion capacity of the samples were evaluated,with focus on investigating the effect of WCBC on enhancing the thermal conductivity of the composite phase-change materials.WCBC did not chemically react with the pure phase-change material.The flake-like structure of WCBC enabled the formation of efficient thermal conduction pathways,thereby significantly improving the thermal conductivity.Incorporating 5%mass fraction of WCBC increased the thermal conductivity of the composite phase-change material by 12.80%,and the latent heat of fusion reached 160.72 J/g.After 1180 s of photoirradiation,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 developing low-cost composite phase-change materials for temperature regulation in stadium buildings.关键词
相变/复合材料/焓/废旧烟头/光热转换Key words
phase change/composites/enthalpy/waste cigarette butt/photothermal conversion分类
能源科技引用本文复制引用
杨平川,方钰涵,赖文蔚,刘昌会..基于废旧烟头碳材料的复合相变材料制备及其热物理性能[J].储能科学与技术,2026,15(1):49-57,9.基金项目
国家自然科学基金(51906252). （51906252）
