Title of article :
Magnetic nanoparticle-embedded PCM nanocapsules based on paraffin core and polyurea shell
Author/Authors :
Park، نويسنده , , Sangphil and Lee، نويسنده , , Yeongmin and Kim، نويسنده , , Yong Seok and Lee، نويسنده , , Hyang Moo and Kim، نويسنده , , Jung Hyun and Cheong، نويسنده , , In Woo and Koh، نويسنده , , Won-Gun، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Pages :
6
From page :
46
To page :
51
Abstract :
We described the synthesis and characterization of magnetic Fe3O4 nanoparticle (NP)-embedded phase change material (PCM) nanocapsules (Mag-PCM) based on a paraffin core and polyurea shell (paraffin@polyurea). The Mag-PCM nanocapsules were synthesized via interfacial polycondensation between tolylene diisocyanate (TDI) and ethylene diamine (EDA) with various concentrations (0, 2.2, 3.7, and 4.6 wt%) of Fe3O4 nanoparticles. FTIR and TGA analyses confirmed the successful preparation of Mag-PCM nanocapsules. TEM and SEM images revealed that most of the Fe3O4 NPs were localized in the polyurea shell layer due to the Pickering effect. Laser flash (LFA) and DSC analyses demonstrated that the embedment of Fe3O4 NPs could increase the thermal conductivity of PCM nanocapsules and reduce the supercooling of the paraffin between bulk and nano-size confinement conditions.
Keywords :
thermal conductivity , heat storage , Phase change materials , nanocapsule , magnetic nanoparticles , polyurea , Paraffin
Journal title :
Colloids and Surfaces A Physicochemical and Engineering Aspects
Serial Year :
2014
Journal title :
Colloids and Surfaces A Physicochemical and Engineering Aspects
Record number :
1946050
Link To Document :
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