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为了研制一种具有蓄热调温功能的织物,采用原位聚合法制备了以正十八烷为芯材,以三聚氰胺-甲醛-尿素树脂为壁材的相变材料微胶囊。利用扫描电子显微镜(SEM)和差示扫描量热仪(DSC)研究微胶囊的表面形态和储热性能。采用干法涂层工艺将不同质量分数的相变微胶囊整理到丙纶SMS复合织物上,并对其进行外貌、热性能及蓄热调温性能测试。研究结果表明:相变微胶囊表面光滑平整,熔融热焓为228.1J/g。整理后的复合织物表面附着有微胶囊,织物的熔融热焓值随着整理液中微胶囊含量的增加而增大,且降温速率明显减缓,具有良好的蓄热调温功效。
In order to develop a kind of fabric with thermal storage and thermoregulation function, a phase change material microcapsule with n-octadecane as core material and melamine-formaldehyde-urea resin as wall material was prepared by in-situ polymerization. The surface morphology and heat storage performance of microcapsules were investigated by scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). The dry coating process was used to make phase change microcapsules with different mass fraction on the polypropylene SMS composite fabric, and its appearance, thermal performance and thermal storage temperature control performance were tested. The results show that the surface of the phase change microcapsule is smooth and the enthalpy of fusion is 228.1J / g. After finishing, the microcapsules are attached to the surface of the composite fabric, the enthalpy of fusion of the fabric increases with the increase of the microcapsule content in the finishing liquid, and the cooling rate is obviously slowed down, and the thermal storage and tempering effect is good.