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选取矿渣纤维作为多孔材料,通过Na OH溶液对其进行表面改性,使其光滑表面形成无规则新生产物富硅铝层,从而使吸附性能增强。分别选择Na2SO4·10H2O、复配石蜡、二元脂肪酸癸酸(CA)-月桂酸(LA)作为相变材料,采用真空浸渍法对不同压力、浸渗时间、材料比例条件下制备的复合多孔相变矿渣纤维进行了试验研究。通过差示扫描法、吸放湿平衡曲线法对复合材料温湿性能进行测试,利用扫描电镜对其形貌、结构进行分析。结果表明:复合石蜡/纤维在97%湿度环境下最大平衡含湿量达9.3%,其相变温度为27.54℃,相变潜热为105.6 J/g,具有良好的调温调湿效果。
Slag fibers are selected as porous materials, which are surface modified by NaOH solution to form irregular new silicon-aluminum-rich layers on the smooth surface, so that the adsorption performance is enhanced. Na2SO4 · 10H2O, complex paraffin and fatty acid decanoic acid (CA) -lauric acid (LA) were selected as phase change materials. The composite porous phase prepared under different pressures, impregnation times and material ratios Slag fibers have been tested. The temperature and humidity properties of the composites were tested by differential scanning and absorption-desorption equilibrium curve, and their morphology and structure were analyzed by scanning electron microscopy. The results showed that the maximum equilibrium moisture content of composite paraffin / fiber was 9.3% at 97% humidity, the phase transition temperature was 27.54 ℃, and the latent heat of phase transformation was 105.6 J / g, which had a good thermoregulation and humidity control effect.