Synthesis and thermal properties of a novel nanoencapsulated phase change material with PMMA and SiO2 as hybrid shell materials

	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
	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).