Synthesis and characterization of the n-butyl palmitate as an organic phase change material

  • Liyun Ma
  • Chuigen Guo
  • Rongxian Ou
  • Qingwen WangEmail author
  • Liping LiEmail author


In this research, the n-butyl palmitate was synthesized using the esterification reaction of the PA with n-butanol. The 1H nuclear magnetic resonance and Fourier transform infrared illustrated that the hydroxyl group and carboxyl group disappeared, and the ester bond appeared after the reaction, explaining that n-butyl palmitate was successfully fabricated. The differential scanning calorimetry indicated that the phase-transition temperature and latent heat are 12.6 °C and 127.1 J g−1, which was suited to use in low-temperature fields such as food, pharmaceutical, and biomedical. The thermogravimetric analysis suggested that it had great thermal stability during the phase change process. In addition, the thermal conductivity of the n-butyl palmitate was slightly higher than other fatty acid ester, and the 500 thermal cycles test results indicated that it had excellent thermal reliability. Therefore, the n-butyl palmitate is deduced to share great thermal energy storage ability in terms of latent heat thermal energy system applications.


Palmitic acid ester Phase change material Esterification Thermal energy storage 



This work was financially supported by the National Natural Science Foundation of China (31570572, 31670516 and 31600459).


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  1. 1.College of Materials and EnergySouth China Agricultural UniversityGuangzhouPeople’s Republic of China

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