期刊文献+

界面聚合法包覆石蜡制备微胶囊复合相变材料 被引量:25

Preparation of Micro-capsule Phase Change Composite Material by Coating Paraffin with Interfacial Polymerization
下载PDF
导出
摘要 石蜡作为相变材料在储能领域已成为研究热点,其中一个重要问题就是石蜡的封装。以微胶囊包覆的方式对石蜡进行封装,通过界面聚合,以甲基丙烯酸甲酯聚合包覆石蜡微乳液,得到聚甲基丙烯酸甲酯包覆石蜡的核壳结构。研究了复合相变材料的包覆过程中转速、乳化剂的添加量、引发剂的添加量及包覆温度对微胶囊颗粒大小及性能的影响,并提出了微胶囊包覆过程中的"尺寸含量关系",预测了实验平衡点。当转速为2000r/min、乳化剂添加量为4%、引发剂添加量为1%、聚合温度为70℃时,得到粒径为1μm左右的微胶囊,材料的相变储能约为110J/g,石蜡的包覆率为50%。 Paraffin phase change material has become a research focus in the energy storage field. The encapsulation of paraffin is one of the key techniques for the application purpose. The paraffin is encapsulated through interfacial polymerization, using methyl methacrylate (MMA) as the coating material. The core-shell structured micro-capsule is prepared with poly-methylmethacrylate coating the paraffin. The parameters affecting the coating process is investigated, including the mechanical rotation speed, addition amounts of the emulsifier and initiator and coating temperature. The size-content relation of coating process is given, which is used to forecast the experimental balance point. When the rotation speed is 2000r/min, the addition amounts of emulsifier and initiator are 4%, and 1% respectively, with the coating temperature at 70℃, the optimized result is obtained. The diameter of the micro-capsule prepared under the above conditions is about 1μm. Its phase change enthalpy is about 110J/g and the coating rate of the paraffin reaches 50%.
出处 《材料导报》 EI CAS CSCD 北大核心 2009年第22期62-64,79,共4页 Materials Reports
基金 深港创新圈2006年资助项目
关键词 界面聚合 微胶囊 复合相变材料 interfacial polymerization, micro-capsule, phase change composite material
  • 相关文献

参考文献9

二级参考文献31

  • 1王锦成,陈月辉,王海宏,沈言道.微胶囊技术在阻燃材料中的应用进展[J].上海工程技术大学学报,2004,18(3):264-268. 被引量:12
  • 2Pasupathy. Phase change material - based building architecture for thermal management in residential and commercial establishments[J]. Renewable and Sustainable Energy Reviews, 2008, 12:39-64.
  • 3Cemil Alkan. Enthalpy of melting and solidification of sulfonated paraffins as phase change materials for thermal energy storage[J]. Thermochimica Acta,2006, 451:126-130.
  • 4Feldman D,et al. Development and application of organic phase change mixtures in thermal storage gypsum wallboard[J]. Solar Energy Materials and Solar Cells, 1995, 36: 147-157.
  • 5Hasan A. Thermal energy storage system with stearic acid as phase change material [J]. Energy Conversionand Management, 1994,35:843-56.
  • 6Atul Sharma. Accelerated thermal cycle test of acetamide, stearic acid and paraffin wax for solar thermal latent heat storage applications[J]. Energy Conversion and Management, 2002,43 : 1923 1930.
  • 7Dong Zhang, Zongjin I.i. Development of thermal energy storage concretc[J]. Cement and Concrete Research, 2004,34:927- 934.
  • 8Xavier P YSylvain Mauran . Paraffin / porous graphite matrix composite as a high and constant power thermal storage material[J]. International Joumal of Heat and Mass Transfer, 2001, 44:2727-2737.
  • 9Walter E Voisinet , Colden , Deall Daymon . Encapsulated PCM Aggregate[P]. US4747240,1988.
  • 10Kedl R,Stovall T. Activities in Support of the Wax impregnated Wallboard Concept : Thermal Energy Storage Researches Activity Review[D]. US Department of Energy. New Orleans. Louisisna, USA, 1989.

共引文献70

同被引文献352

引证文献25

二级引证文献185

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部