Preparation of low temperature thermochromatic and energy-storage composite materials

This paper synthesized a low temperature thermochromatic and energy-storage material from higher fatty alcohol(CR-2) with crystal violet lactone as chromophore and bisphenol as developer.By contrast of the performances of different ratios of chromophore / developer /solvent,the optimal mixing ratio was determined.According to Schroeder′s theory,the binary energy-storage materials(CR-2 and CR-3)was blended and the same proportion of the blended material was taken to replace CR-2 as the medium of thermochromatic material,thus widening the temperature range of reversible low temperature thermochromatic materials.Experimental results showed that the optimal mass mixing ratio of chromophore / developer/solvent was 1∶2.5∶40,and DSC analysis showed that composite thermochromatic material was also a kind of fine energy-storage material.