Lauric-stearic acid eutectic mixture/carbonized biomass waste corn cob composite phase change materials: Preparation and thermal characterization
作者： Weiyi Zhang , Xianmei Zhang , Xiaoguang Zhang , Zhaoyu Yin , Yangai Liu
DOI: 10.1016/J.TCA.2019.01.022
关键词:
摘要: Abstract In this study, novel form-stable composite phase change materials (FS-CPCMs) were prepared by the incorporation of a eutectic mixture lauric-stearic acid (LA-SA) into carbonization corn cob (CNCC). CNCC served as good supporting material that not only prevented leakage LA-SA but also enhanced its thermal conductivity. Scanning electron microscopy results demonstrated exhibits highly porous structure comprising rough micropores. The retention 77.9 wt% in without was observed. Differential scanning calorimetry revealed LA-SA/CNCC FS-CPCMs melt at 35.1 °C with latent heat 148.3 J/g and solidify 29.7 °C 144.2 J/g. conductivity approximately 87.5% greater than LA-SA. Thermogravimetric analysis 200-cycle experiments indicated exhibit excellent stability performance. Therefore, as-prepared demonstrate promise for building energy-efficiency applications.
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