相变石蜡微胶囊的制备  

Research of Phase Change Paraffin Encapsulated

作　　者：黄玮[1] 丛玉凤[2] 柳伟[3] 王晓蕾[2] 荆鹏[2] 刘峰[2] 

机构地区：[1]辽宁石油化工大学环境与生物工程学院,辽宁抚顺113001 [2]辽宁石油化工大学化学与材料科学学院,辽宁抚顺113001 [3]海洋石油工程(青岛)有限公司,山东青岛266555

出　　处：《石油化工高等学校学报》2011年第3期52-54,共3页Journal of Petrochemical Universities

基　　金：辽宁省教育厅资助项目(2009A438)

摘　　要：以脲醛树脂为壁材包覆石蜡制备微胶囊,对石蜡作为相变材料的相容性问题进行了研究。实验考察了复合乳化剂硬脂酸与三乙醇胺的质量比、乳化剂用量和乳化转速对制备的微胶囊的粒径及其稳定性的影响,最后讨论了制备过程中不同酸化时间对微胶囊微观形貌的影响。结果表明,硬脂酸和三乙醇胺质量比为5∶2的复合乳化剂,其质量分数为7%、乳化转速为1 000 r/min,酸化时间为90 min时,制备的微胶囊呈现粒径均一、表面光滑、密封良好的球状,平均粒径为29.8μm。The paraffin wrapt to microcapsule with urea-formaldehyde resin to resolve the compatibility issues for phase change materials was studied. The parameters affecting the coating process were investigated, including emulsifier kind, emulsifier dosage and the mechanical rotation speed. The morphology of the microcapsules varying with the acidification time was observed. Experimental results show that, when the complex emulsifier is composed of 71% octadecanoic acid and 29% triethanolamine, the microcapsules made from 7% complex emulsifier at the rotation speed of 1 000 r/rain and the acidification time for mierocapsule synthesis is 90 min are of uniform particle size, smooth and wellsealed, and an average particle size of 29.8μm.

关 键 词：石蜡 微胶囊 储能材料 性能 

分 类 号：TQ645.93[化学工程—精细化工]