Effect of Preparation Ways on Structure and Properties of Steraric Acid/Na⁺-Montmorillonite Phase-Change Composite Materials

Abstract:

Two different methods, heat fusion process and solution infusion process had been used to synthesize a kind of phase change material (PCM) for latent heat thermal energy storage (LHTES). The composite was composed by steraric acid (SA) and montmorillonite (MMT). The morphology of the SA/MMT was characterized by scanning electron microscope (SEM) and FT-IR. The thermal performance and stability of the composite was characterized by differential thermal scanners (DSC) and heating store/release experiment. The FT-IR results demonstrated the PCMs and MMT combined by only physical bonds, SEM results showed that SA was intercalated in to MMT, and heat fusion process was contribute to the combination better than the other. The heating store/release experiment indicated that the stability of M-SA/MMT is better than S-SA/MMT.

• Periodical: Key Engineering Materials (Volume 501)
• Pages: 589-592
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.501.589
• Online since: January 2012
• Authors: Hui Xia Feng, Han Zheng, Yi Wang
• Keywords: Heat Fusion Process, Na⁺-Montmorillonite, Phase Change Materials (PCM), Solution Infusion Process, Steraric Acid

References

[1] B. Zalba., J. M. Marin., L.F. Cabeza et, al, Review on thermal energy storage with phase change: materials, heat transfer analysis and applications, J. Applied Thermal Engineering. 23(2003) 251-283.

DOI: 10.1016/s1359-4311(02)00192-8

[2] X. Wang, Y. P. Zhang, Review on thermal performance of phase change energy storage building envelope, J. Chinese Science Bulletin 54 (2009), 920-928.

DOI: 10.1007/s11434-009-0120-8

[3] Q. Qi., S.M. Deng., Y.Q. Jiang, A simulation study on a solar heat pump heating system with seasonal latent heat storage, J. Solar Energy 82 (2008) 669-675.

DOI: 10.1016/j.solener.2008.02.017

[4] A. Sari, A. Karaipekli, Preparation, thermal properties and thermal reliability of palmitic acid/expanded graphite composite as form-stable PCM for thermal energy storage, J. Solar Energy Materials & Solar Cells 93 (2009), 571-576.

DOI: 10.1016/j.solmat.2008.11.057

[5] A. Karaipekli, Capric–myristic acid/vermiculite composite as form-stable phase change material for thermal energy storage, J. Solar Energy. 83 (2009), 323-332.

DOI: 10.1016/j.solener.2008.08.012

[6] X.M. Fang, Z. G. Zhang, Z.H. Chen, Study on preparation of montmorillonite-based composite phase change materials and their applications in thermal storage building materials, J. Energy Conversion and Management 49 (2008) 718-723.

DOI: 10.1016/j.enconman.2007.07.031