用DSC法对某些脂肪酸混合物相变温度和相变热进行了研究,结果表明:它们在相变期间无分层现象,体积变化小,混合物的溶点在30～70℃范围和潜热在170 J/g左右,几乎无过冷现象并有良好的化学稳定性,其二元体系位于低分予重量百分浓度40～70%的范围,显示的性质具有较好的热贮基性能。 The phase transition temperature and phase transition heat of some fatty acid mixtures were studied by DSC. The results showed that there was no delamination during the phase transition, the volume change was small, the melting point of the mixture was in the range of 30-70 ℃ and the latent heat was 170 J / g or so, almost no supercooling and good chemical stability. The binary system is located in the range of 40-70% of the low concentration to the weight percent concentration, showing the properties of good thermal storage properties.