A novel montmorillonite-based composite phase change material and its applications in thermal storage building materials

• Published in: Energy and buildings Vol. 38; no. 4; pp. 377 - 380
• Main Authors: Fang, Xiaoming, Zhang, Zhengguo
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-04-2006; Elsevier
• Subjects: Applied sciences; Buildings. Public works; Exact sciences and technology; Gypsum board; Materials; Miscellaneous (including polymer concrete, repair and maintenance products, etc.); Montmorillonite; Phase change material (PCM); Thermal energy storage; Phase change material (PCM); Thermal energy storage; Gypsum board; Montmorillonite; Gypsum plate; Construction materials; Product development; PCM material; Experimental study; Application; Thermal energy; Composite material
• ISSN: 0378-7788
• DOI: 10.1016/j.enbuild.2005.07.005

A novel composite phase change material (PCM) was prepared by blending an organic PCM with an organic-modified montmorillonite. The thermal characteristics of the composite PCM were close to those of the pure PCM, and 1500 times heating–cooling cycles test showed that the composite PCM had good performance stability. Compared with the pure PCM, the composite PCM exhibited higher heat transfer rate owing to the combination with montmorillonite. The composite PCM had a good compatibility with gypsum powders, and the composite gypsum boards prepared had a function of cutting down energy consumption by decreasing the frequency of internal air temperature swings.