聚苯乙烯包覆硫酸鈉相轉移材料膠囊之製備與其熱性質之探討

Preparation and Thermal Properties of Polystyrene Capsules Encapsulated Phase Change Material

李力行(L. H. Lee) ； 張志鵬(C. P. Chang)

《華岡紡織期刊》 12卷2期 (2005/06) Pp. 179-184

https://doi.org/10.29984/JHGT.200506.0010

摘要

本實驗以乳化添加非溶劑法製備相變化材料微膠囊。結果顯示，經由光學顯微鏡驗証此包覆法可完整包覆相變化材料，凝膠4小時可獲得最佳殼材；而使用Tween20可得殼／芯比率較高之微膠囊。傅立葉轉換紅外線光譜儀(FTIR)鑑定結果，可以推斷出微膠囊的組成為殼材聚苯乙烯及芯材相變化材料Na2SO4•10H2O，粒徑分析儀測定微膠囊粒徑大小跟攪拌轉速有很大的關聯。差分掃描熱卡計(DSC)測試結果，相轉移材其本質並無改變，並顯示包覆效果良好。

關鍵字

相轉移材料 ； 膠囊 ； 熱性質

並列摘要

Phase Chang Material Microcapsules were prepared by a simple coacervation method, and were observed the surface of manufacturing process on microcapsules by optical microscope. The experimental result shows that the wall/core ratio 26.1% was obtained after 4hr coacervation better than others. The various dispersants could be affected the wall/core ratio of microcapsule. It was able to determined that microcapsules made from polystyrene and Na2SO4•10H2O each wall and core by FTIR. Diameter of microcapsules were tested by MasterSizer(MAL30007S MALVERN UK) and found diameter of microcapsules had larger relation with stirring speed. Thermal properties of Phase Change Material was examined by DSC and still had great thermal effective though this produce process.

並列關鍵字

Phase Chang Material ； Capsules ； Thermal Properties