相變化材料微膠囊披覆奈米銀層之研究

The Research of Microencapsulated Phase Change Materials Coated by Silver Nano-Particled Shell

盧政漢(Cheng-Han Lu)

指導教授 ： 段葉芳

國立臺北科技大學/工程學院/化學工程研究所/碩士(2010年)

https://doi.org/10.6841/NTUT.2010.00613

摘要

研究主要利用三聚氰胺-甲醛包埋相變化材料（Phase Change Material，PCM），有正18烷、正19烷、正20烷等石蠟材料，製得相變化微膠囊（Microencapsulated Phase Change Materials，McPCMs），為了使McPCMs能夠具有溫度調節及抗菌的功能，我們在McPCMs的殼材外部利用化學鍍法添加奈米銀層，使其具有抗菌的功效，因此本論文分成兩部份。第一部分，是藉以調整一些實驗變因，改善McPCMs的粒徑、包覆完整性及產率。在第二部分是使用化學鍍法，是將第一部分的McPCMs經過化學鍍法鍍覆奈米銀，是利用Sn2+與銀胺絡合物Ag(TEA)2+所進行氧化還原反應，能夠在McPCMs殼材表面產生奈米銀的堆積。
第一部份所製得之McPCMs，當乳化轉速達到11000rpm時， McPCMs粒徑為5um以下，殼材與核材的質量比為25.59：74.41。而第二部分，找到在McPCMs表面較理想的奈米銀累積附著效果，經分析及計算得知所鍍覆的奈米銀約占McPCMs之總質量比為11.56%。

關鍵字

相變化材料 ； 三聚氰胺 ； 甲醛 ； 銀 ； 奈米 ； 化學鍍

並列摘要

The study is mainly focused on using melamine-formaldehyde to plate on phase change material（PCM）such as the wax material of octadecane、nonadecane and eicosane to get microencapsulated phase change materials (McPCMs). In order make McPCMs to have the function of antiseptic and modulate temperature, we added a nanometer silver film outside the McPCMs by using plating to increase the efficacy of antiseptic. Therefore, the main research is divided into two parts. In the first part, we adjusted varies of experience to improve the sizse of the microcapsule, the cover completeness, and the yield. In the second part, we used chemical plating on McPCMs, which was made from the first part. We also used Sn2+ and Ag(TEA)2+ to proceed redox reaction and produced accumulation of nanometer silver on surface of particle.

When the McPCMs, which we got from the first part, passed through the high-speed emulsification machine to 11000rpm, the microcapsule size of McPCMs went down below 5um. The mass ratio of the shell and the cell was 25.59:74.41. However, in the second part, we found an ideal result that accumulated quantities of nanometer silver getting attached to the surface of McPCMs. By analyzing and calculating, we know the plating nanometer silver has about 11.56% in the total mass ratio of McPCMs.

並列關鍵字

phase change material ； PCM ； Melamine ； Formaldehyde ； Silver ； Nanoparticles ； Chemical plating

參考文獻

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