Preparation and Characterization of a Form-Stable Phase Change Materials Composed by UF, Paraffin and Expanded Perlite

Abstract:

A kind of form stable phase change material (PCM) based on expanded perlite, paraffin, urea formaldehyde hybrids is prepared by using vacuum-impregnation process. This kind of form stable PCM is made of paraffin as a dispersed phase change material and expanded perlite as a supporting material, and urea-formaldehyde resins as membrane materials to be applied to the porous surface of expanded perlite(EP). The structure of urea-formaldehyde resins(UF) being prepared is characterized by Fourier Transform Infrared Spectrophotometer(FT-IR). Hybrids’ thermal stability, latentheat and morphology are characterized by the thermogravimetry analysis(TGA), differential scanning calorimeter(DSC) Method and scanning electronic microscope(SEM), respectively. The FT-IR and SEM curves show that urea-formaldehyde resins have already been formed. The TGA analysis indicates that the form-stable phase change material has very good thermostability under working atmosphere. The application of DSC not only studies the appropriate curing time of UF，but also indicates that the form-stable PCM that has been prepared has more stable thermal energy storage performance than the traditional one.

• Periodical: Advanced Materials Research (Volumes 347-353)
• Pages: 4109-4113
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.347-353.4109
• Online since: October 2011
• Authors: Kun Xu, Shi Rong Liu, Zhong Bin Ni, Ming Qing Chen, Ming Fu Mao
• Keywords: Curing Time, Expanded Perlite, Paraffin, Prepolymer, Urea-Formaldehyde Resin

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