| 原位聚合制备三聚氰胺脲醛树脂石蜡微胶囊及性能 |
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| 引用本文： | 刘星,汪树军,刘红研. 原位聚合制备三聚氰胺脲醛树脂石蜡微胶囊及性能[J]. 化工学报, 2006, 57(12): 2991-2996 |
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| 作者姓名： | 刘星 汪树军 刘红研 |
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| 作者单位： | 中国石油大学(北京)重质油加工国家重点实验室;化工学院,北京,102249 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) , 北京市教委共建项目 |
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| 摘 要： | 利用廉价的三聚氰胺脲醛树脂为壳材料，低熔点石蜡为芯材，用原位聚合的方法成功制备了三聚氰胺脲醛树脂石蜡微胶囊.通过正交实验优化，微胶囊石蜡质量含量达到61.78%，包裹率达到94.15%.用差示扫描量热仪(DSC)考察了微胶囊相变材料的热性能，其相变温度和焓值分别为12.53℃、137.16 J·g-1.以Washburn方程为理论根据考察了微胶囊相变材料的亲水性质，其亲水性随石蜡含量增加而降低.
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| 关 键 词： | 潜热储能 正交实验 微胶囊 石蜡 相变材料 |
| 文章编号： | 0438-1157（2006）12-2991-06 |
| 收稿时间： | 2005-06-23 |
| 修稿时间： | 2005-06-232006-04-18 |
Preparation and characteristics of paraffin microencapsulated in melamine-urea-formaldehyde by in-situ polymerization |
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| LIU Xing,WANG Shujun,LIU Hongyan. Preparation and characteristics of paraffin microencapsulated in melamine-urea-formaldehyde by in-situ polymerization[J]. Journal of Chemical Industry and Engineering(China), 2006, 57(12): 2991-2996 |
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| Authors: | LIU Xing WANG Shujun LIU Hongyan |
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| Abstract: | A microencapsulated phase change material(PCM)was prepared by the in-situ polymerization method using low melting point paraffin and melamine-urea-formaldehyde prepolymer as core material and shell material respectively.Through optimization by orthogonal test, 94.15% paraffin was encapsulated and the microcapsule containing 61.78% paraffin was prepared successfully.Differential scanning calorimeter(DSC) was used to study the thermal properties of the microencapsulated PCM, and the results showed that the melt point and enthalpy were 12.53℃ and 137.16 J·g-1, respectively.In addition,the hydrophilic-lipophilic properties of the microencapsulated phase change material was also investigated with the Washburn equation, and the result showed that the hydrophilicity of the PCM reduced with increasing content of paraffin in the PCM. |
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| Keywords: | latent heat storage orthogonal test microcapsule paraffin phase-change material |
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