采用原位聚合法合成了以正十八烷为囊芯、三聚氰胺-甲醛树脂为囊壁的相变材料微胶囊,并通过密度法对微胶囊样品进行了提纯.通过扫描电子显微镜、差示扫描量热仪对纯化前后胶囊分析发现,微胶囊形貌明显变好,热效率也显著提高.
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