| 纳米胶囊相变材料的制备 |
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| 引用本文： | 方玉堂,匡胜严,张正国,高学农. 纳米胶囊相变材料的制备[J]. 化工学报, 2007, 58(3): 771-775 |
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| 作者姓名： | 方玉堂 匡胜严 张正国 高学农 |
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| 作者单位： | 华南理工大学传热强化与过程节能教育部重点实验室,广东,广州,510640;华南理工大学传热强化与过程节能教育部重点实验室,广东,广州,510640;华南理工大学传热强化与过程节能教育部重点实验室,广东,广州,510640;华南理工大学传热强化与过程节能教育部重点实验室,广东,广州,510640 |
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| 基金项目： | 广东省自然科学基金 , 广东省广州科技计划 |
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| 摘 要： | 采用超声波工艺及细乳液原位聚合方法，研制了以聚苯乙烯为囊壁、正十八烷为囊芯的纳米胶囊相变材料；系统探讨了聚合反应各因素对乳胶粒子的形态、胶囊材料热性能的影响。适宜的反应条件为：引发剂AIBN 0.5%（油相质量分数，下同）；链转移剂DDT 0.4%；正十八烷与苯乙烯比为1∶1以及复合乳化剂（SDS和OP-10）总量2%，配比为1∶1。实验结果表明胶囊Z均直径124 nm，相变焓可达124.4 kJ·kg-1。
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| 关 键 词： | 相变材料 纳米胶囊 原位聚合 细乳液 超声波工艺 |
| 文章编号： | 0438-1157（2007）03-0771-05 |
| 收稿时间： | 2006-08-11 |
| 修稿时间： | 2006-08-112006-11-06 |
Preparation of nano-encapsulated phase change materials |
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| FANG Yutang,KUANG Shengyan,ZHANG Zhengguo,GAO Xuenong. Preparation of nano-encapsulated phase change materials[J]. Journal of Chemical Industry and Engineering(China), 2007, 58(3): 771-775 |
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| Authors: | FANG Yutang KUANG Shengyan ZHANG Zhengguo GAO Xuenong |
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| Abstract: | The nano-encapsulated phase change materials (NEPCMs) with polystyrene as shell and n-octadecane as core were synthesized by ultrasonic technique and miniemulsion in-situ polymerization.The influence of various polymerization factors on the morphology and thermal properties of nanocapsules was investigated systematically.The optimal reaction condition was 0.5% AIBN initiator (mass percent of oil phase,the same in the following), 0.4% DDT chain transfer agent, 1∶1 n-octadecane /styrene, and 2% total amount of composite surfactants consisting of 1∶1 SDS and OP-10.The results showed that the Z average diameter of capsules was 124 nm and its phase change latent heat was 124.4 kJ·kg-1. |
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| Keywords: | phase change material nanocapsules in-situ polymerization miniemulsion ultrasonic technique |
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