Preparation and Performance of Gypsum Matrix Phase Change Energy-Storage Material

Abstract:

Paraffin/expanded perlite composite phase change energy-storage material (PPCM) was prepared with expanded perlite as adsorption material and paraffin as phase change energy-storage material (PCM). The DSC and SEM results showed that the internal micropores of expanded perlite were filled with paraffin; the phase change temperature of PPCM was basically similar with that of paraffin and the latent heat of PPCM was corresponded with that of paraffin based on mass ratio among PPCM. PPCM was incorporated into gypsum to prepare gypsum matrix phase change energy-storage material (GPCM), and its mechanical properties, water absorption and temperature control effect were determined. The results showed that with the increase of PPCM’s content, the 2h compressive strength, flexure Strength and water absorption of GPCM continuously declined and its temperature control effect significantly enhanced.

• Periodical: Advanced Materials Research (Volumes 476-478)
• Pages: 1829-1832
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.476-478.1829
• Online since: February 2012
• Authors: Qi Jin Li, Guo Zhong Li
• Keywords: Composite Phase Change Energy-Storage Material, Expanded Perlite, Gypsum, Paraffin

References

[1] Chunhua Xiao, Zhonghua Chen and Guohui Su: New Chemical Materials. Vol. 36 (2008), pp.90-91 (In Chinese)

[2] Athienitis A K, Liu C, Hawes D, et al: Building and Environment. Vol. 32 (1997), pp.405-410

[3] Xiaoming Fang, Zhengguo Zhang, Zhonghua Chen: Energy Conversion and Management. Vol. 49 (2008), p.718–723