Synthesis and thermal properties of a novel nanoencapsulated phase change material with PMMA and SiO2 as hybrid shell materials | |
Jian Shi; Xiaolin Wu; Xianzhu Fu; Rong Sun | |
刊名 | THERMOCHIMICA ACTA
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2015 | |
英文摘要 | A novel composite PCMs nanocapsules (nanoPCMs) with PMMA and SiO2 as hybrid shell material and paraffin as core were successfully synthesized by concerted reaction of interfacial polymerization, sol gel and self-assembly methods. SEM images showed that the structure of nanocapsules was affected by the mass ratio of TEOS and MMA. When the mass ratios of TEOS/MMA were 1:3.5 and 1:5.75, the nanocapsules were spherical and homogeneous with the diameter around 120 nm. However, the nanocapsules were inhomogeneous and irregular when the mass ratio of TEOS/MMA was 1:12.5. Based on the results of DSC, moderate mass ratio of TEOS/MMA can improve thermal properties of nanocapsules. When the mass ratio ofTEOS/MMA was 1:3.5, the thermal properties of paraffin@PMMA-SiO2 nanocapsules was improved with the average enthalpy about 71 J/g and encapsulated efficiency of paraffin was 57.4%, which was higher than paraffin@PMMA nanocapsules. Besides paraffin which was encapsulated in nanocapsules has a better thermal stability than that of unencapsulated, and the nanocapsules prepared with different mass ratio of MMA/TEOS can provide almost the same thermal stability. |
收录类别 | SCI |
原文出处 | http://www.sciencedirect.com/science/article/pii/S0040603115003366 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.siat.ac.cn:8080/handle/172644/6659] ![]() |
专题 | 深圳先进技术研究院_集成所 |
作者单位 | THERMOCHIMICA ACTA |
推荐引用方式 GB/T 7714 | Jian Shi,Xiaolin Wu,Xianzhu Fu,et al. Synthesis and thermal properties of a novel nanoencapsulated phase change material with PMMA and SiO2 as hybrid shell materials[J]. THERMOCHIMICA ACTA,2015. |
APA | Jian Shi,Xiaolin Wu,Xianzhu Fu,&Rong Sun.(2015).Synthesis and thermal properties of a novel nanoencapsulated phase change material with PMMA and SiO2 as hybrid shell materials.THERMOCHIMICA ACTA. |
MLA | Jian Shi,et al."Synthesis and thermal properties of a novel nanoencapsulated phase change material with PMMA and SiO2 as hybrid shell materials".THERMOCHIMICA ACTA (2015). |
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