摘要
以石蜡为囊芯,尿素-甲醛树脂为囊壁,运用原位聚合法合成相变储能微胶囊材料.采用光学显微镜观察微胶囊形成过程,扫描电子显微镜观察微胶囊的表面形貌和壁厚,用红外光谱仪表征微胶囊的化学成分,用差示扫描量热仪研究微胶束相变储能性能.研究表明,脲醛树脂可有效包覆石蜡,形成粒径分布均匀的相变储能微胶囊,该材料具有储能效果,可用于设计储能建筑材料.
Phase change microcapsules were synthesized by in-situ polymerization using urea-formaldehyde resin （UF） as shell material and paraffin as core material. The formation of the microcapsules was observed using optical microscopy. The ssurface morphology and the wall thickness of the microcapsules were characterized using scanning electron microscopy. Chemical structures of the microcapsule composition were analyzed by Fourier-transform infrared spectroscopy. The results show that urea-formaldehyde resin can effectively capsulize an organic material of paraffin. During the phase change of the paraffin, the microeapsules can store and release energy. They can be used to design new types of energy storage materials.
出处
《深圳大学学报（理工版）》
EI
CAS
北大核心
2010年第1期65-69,共5页
Journal of Shenzhen University(Science and Engineering)
基金
广东省自然科学基金资助项目(06028569)
深圳市南山区科技计划资助项目(2009010)
关键词
高分子材料
储能建筑材料
微胶囊
尿素-甲醛树脂
石蜡
相变材料
polymer
energy storage construction material
microcapsule
urea-formaldehyde resin
paraffin
phase change material
