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Phase diagram of palmitic acid-tetradecanol mixtures obtained by DSC experiments

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Abstract

A series of PA-TD mixtures were prepared and their thermal properties were studied by DSC and thermal conductivity measurement. The phase diagram of the binary system was constructed, which showed an eutectic behavior for the solid-liquid equilibrium line. The eutectic composition of the binary system was at the mass fraction of TD near 0.7 with an eutectic temperature of about 29°C. At TD side, PA was partially miscible in the TD solid matrix and the solid phase transition of TD had an effect on the solidus line. The eutectic composition mixture could be viewed as a new phase change material with large thermal energy storage capacity.

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Authors and Affiliations

  1. School of Chemistry and Environmental Engineering, Changsha University of Science and Technology, Changsha, 410076, P. R. China

    J. L. Zeng, Z. Cao, D. W. Yang, L. Zhang & X. F. Zhang

  2. Materials and Thermochemistry Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China

    J. L. Zeng, F. Xu & L. X. Sun

Authors
  1. J. L. Zeng
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  2. Z. Cao
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  3. D. W. Yang
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  4. F. Xu
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  5. L. X. Sun
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  6. L. Zhang
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  7. X. F. Zhang
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Correspondence to J. L. Zeng or L. X. Sun.

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Zeng, J.L., Cao, Z., Yang, D.W. et al. Phase diagram of palmitic acid-tetradecanol mixtures obtained by DSC experiments. J Therm Anal Calorim 95, 501–505 (2009). https://doi.org/10.1007/s10973-008-9274-x

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  • DOI: https://doi.org/10.1007/s10973-008-9274-x

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