以硬脂酸丁酯为芯材,蜜胺树脂为壁材,采用原位聚合法制备相变微胶囊.采用IR,ESEM及DSC对相变微胶囊进行了结构、形貌以及热性能表征,并讨论了乳化剂种类以及预聚体滴加速率对相变微胶囊形貌的影响.结果表明:微胶囊呈球形,平均粒径小于10μm.乳化剂采用TA与司班-80复配,复配质量比为5∶1,预聚体的滴加速率为0.8～1 2mL/min时微胶囊形貌最好.微胶囊相变潜热可达68.36J/g,并且相变微胶囊经反复发生相变过程,质量损失小,相变储热效果明显.
参考文献
| [1] | NIHAL SAILER;EMEL ONDER .The manufacture of microencapsu1ated phase change materials suitable for the design of thermally enhanced fabrics[J].Thermoehimiea Acta,2007,452(02):149-160. |
| [2] | 任晓亮,王立新,任丽,苏峻峰.原位聚合法制备相变储热微胶囊[J].功能材料,2005(11):1722-1724,1727. |
| [3] | 庄秋虹,张正国,方晓明.微/纳米胶囊相变材料的制备及应用进展[J].化工进展,2006(04):388-391,396. |
| [4] | 李建立,薛平,韩晋民,孙国林,张苗.微胶囊化相变材料的制备与评价方法[J].精细化工,2007(09):843-847. |
| [5] | 叶四化,郭元强,吕社辉,陈鸣才.微胶囊相变材料及其应用[J].高分子材料科学与工程,2004(05):6-9. |
| [6] | CHOI J;KLEE J;KIN J H .Preparation of microcapsules containing phase change materials as heat transfer media by in-situ polymerization[J].Journal of Industrial and Engineering Chemistry,2001,7(06):358-362. |
| [7] | Onder E;Sarier N;Cimen E .Encapsulation of phase change materials by complex coacervation to improve thermal performances of woven fabrics[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2008(1/2):63-72. |
| [8] | Zhaoguo Jin;Yande Wang;Jiguang Liu .Synthesis and properties of paraffin capsules as phase change materials[J].Polymer: The International Journal for the Science and Technology of Polymers,2008(12):2903-2910. |
| [9] | Sarier N;Onder E .The manufacture of microencapsulated phase change materials suitable for the design of thermally enhanced fabrics[J].Thermochimica Acta: An International Journal Concerned with the Broader Aspects of Thermochemistry and Its Applications to Chemical Problems,2007(2):149-160. |
| [10] | You, M;Zhang, XX;Li, W;Wang, XC .Effects of MicroPCMs on the fabrication of MicroPCMs/polyurethane composite foams[J].Thermochimica Acta,2008(1/2):20-24. |
| [11] | LI W;ZHANG X X;WANG X C et al.Preparation and characterization of microcapsulated phase change material with low remnant formaldehyde content[J].Materials Chemistry and Physics,2007,106:437-442. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%