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采用细乳液界面聚合法制备双壳微纳米相变胶囊。以建筑石膏作为基体材料,将双壳微纳米相变胶囊掺入石膏基体材料中,制备石膏基双壳微纳米相变胶囊复合材料。对其进行吸放湿试验测试分析、储放热试验测试分析和耐久性测试分析。利用电子扫描显微镜和差示扫描量热仪研究其表观形貌、热性能。结果表明:双壳微纳米相变胶囊已经达到微纳米共存的效果,可以有效填充在石膏基材料的细小孔隙中。当双壳微纳米相变胶囊掺量为30%时,石膏基双壳微纳米相变胶囊复合材料具有显著的吸放湿效果和储放热效果。石膏基双壳微纳米相变胶囊复合材料具有良好的耐久性。
Preparation of double-shell micro-nano phase-change capsules by miniemulsion interfacial polymerization. The gypsum-based double-shell micro-nano phase-change capsule composite material was prepared by using gypsum as the matrix material and incorporating the double-shell micro-nano phase-change capsule into the gypsum matrix material. Absorbed and released moisture test test analysis, storage and heat test test analysis and durability test analysis. The morphology and thermal properties were studied by scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). The results show that the double-shell micro-nano phase-change capsules have achieved the effect of micro-nano co-existence and can be effectively filled in the fine pores of the gypsum-based material. The gypsum-based double-shell micro-nano phase-change capsule composite has significant moisture absorption and dissipation and heat storage and dissipation effects when the amount of double-shell micro-nano phase-change capsules is 30%. Gypsum-based double-shell micro-nano phase-change capsule composite has good durability.