SiO2/β-环糊精/脲醛树脂微胶囊相变材料的制备

被引：4

作者：

于欣

黄占华

杨庆东

机构：

[1] 生物质材料科学与技术教育部重点实验室(东北林业大学)

来源：

东北林业大学学报 | 2014年 / 42卷 / 06期

关键词：

β-环糊精; 脲醛树脂; SiO2; 储能; 球形;

D O I：

10.13759/j.cnki.dlxb.20140523.029

中图分类号：

TQ320.7 [产品及检验];

学科分类号：

0805 ; 080502 ;

摘要：

以β-环糊精改性脲醛树脂为壁材,以石蜡为芯材成功制备了球形SiO2/β-环糊精/脲醛树脂微胶囊相变材料。采用FT-IR、SEM、DSC、TGA和XPS等分析手段对该球形微胶囊相变材料进行了表征,详细地讨论了不同SiO2用量对微胶囊的微观形貌、热稳定性以及相变焓的影响。实验结果表明:SiO2/β-环糊精/脲醛树脂相变微胶囊表面Si元素的原子质量分数为19.53%,相变焓值高达144.8 J·g-1,初始质量损失温度提高了约90℃。

引用

页码：108 / 110+132 +132

页数：4

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