悬浮聚合法制备相变材料微/纳胶囊  

Fabrication of Microencapsulated/Nanoencapsulated Phase Change Materials Using Suspension Polymerization

作　　者：李伟[1] 张兴祥[1] 由明[1] 

机构地区：[1]天津工业大学功能纤维研究所,改性与功能纤维天津市重点实验室,天津300160

出　　处：《高分子材料科学与工程》2010年第2期36-39,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(50073015);高校博士学科点专项科研基金(20050058004)联合资助项目

摘　　要：采用悬浮聚合法合成了以正十八烷为囊芯、苯乙烯-新戊二醇二丙烯酸酯共聚物为囊壁的相变材料微/纳胶囊,并通过扫描电子显微镜(SEM)、傅里叶变换红外光谱仪(FT-IR)、差示扫描量热仪(DSC)、热重分析仪(TGA)等对其形貌、结构、热性能、热稳定性等进行了分析。结果表明,相变材料微/纳胶囊形貌完整、分散性好;相变材料微胶囊热稳定良好,其失重起始温度较囊芯材料提高了近40℃;相变材料微/纳胶囊在降温过程中有不同程度的过冷结晶现象。Microencapsulated/nanoencapsulated phase change materials （Micro/NanoPCMs） were synthesized through suspension polymerization using styrene-neopentyl glycol diacrylate copolymer （SNGD） as shell and noctadecane as core, and then the morphology, structure, thermal storage and stability of microcapsules and nanocapsules were investigated by scanning electron microscope （SEM）, Fourier transform infrared spectroscopic （FT-IR）, differential scanning calorimetry （DSC） and thermogravimetry analysis（TGA）. The results show that the surface morphology and dispersity of Micro/NanoPCMs are perfect, the thermal stability of MicroPCMs is good, and the mass-loss starting temperature enhances nearly 40 ℃ as compared with the core, super-cooling crystallization appears in the cooling process of Micro/NanoPCMs.

关 键 词：悬浮聚合法 微胶囊 纳胶囊 相变材料 制备 

分 类 号：TQ316.335[化学工程—高聚物工业]