A thermochromic compound was prepared by using crystal violet lactone,bisphenol A and tetradecanol as raw materials.Through orthogonal experiments,the ratio between the three was determined to be m(crystal violet lactone)∶m(bisphenol A)∶m(tetradecanol)=1∶4∶70,and stirring temperature was 70℃ and stirring time was 2h,the thermochromic compound prepared under these conditions had the best discoloration effect.The microcapsules were prepared by the complex coacervation method using the thermochromic compound as the core material and gelatin-arabin gum as the wall material.The preparation conditions were as follows:the emulsification speed was 3500r/min,and the curing time was 3h,the spherical microcapsules with surface smooth were obtained.Prepartion of thermochromic microcapsule with good color-changing properties,heat resistance and acid-base resistance.
Mao Dongyu, Liu Hongru, Wang Xiaochun
. Preparation and property of three-composition thermochromic microcapsule[J]. New Chemical Materials, 2020
, 48(7)
: 76
-80
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.07.018
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