Research of Preparation Process of Amorphous Composite Phase Change Material by Orthogonal Test Method

Abstract:

To prepare shape-stabilized phase change material applicable in digester insulation, firstly to prepare composite phase change material by sol-gel method. Shape material was obtained by sol-gel with TEOS, in which phase change material was lauric acid/cetyl alcohol binary eutectic phase change materials. T he result s showed that the descending order of the influencing factors: ester-PCM ratio, ester -water ratio, pH, the react ion temperature, aging temperature. The best technology is: the ester -water ratio1:8, ester-PCM ratio1:2.3, pH3, aging temperature 85°C, the react ion temperature 60°C. When composite phase change material was prepared with the best technology, phase transition temperature of composite phase change material is 34°C, phase change enthalpy can reach 122.4J/g when the mass fraction of phase change material is 64%.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 309-312
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.309
• Online since: July 2012
• Authors: Feng Lan Wei, Xiang Zhao, E Liu, Chun Long Li, Zhe Mao
• Keywords: 16 Alcohols, Lauric Acid, Phase Change Materials (PCM), Sol-Gel (SG)

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