Polyurea microcapsules with different phase change material for thermochromic smart displays

Sangki Park, Yujang Cho, Sanghyun Park, Min Sun Oh, Daeeun Kim, Gyuntaek Lim, Jong Jin Park

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Thermochromic microcapsules with two kinds of phase change materials that can change color with gradient under 70 °C were prepared. To induce gradient color change in the thermochromic microcapsules, two phase change materials containing polyurea microcapsules in the core were prepared by simply mixing two different melting points and dye. The color change displayed a gradient from dark to light blue due to the difference in melting point in the two phase transition materials. The microcapsules prepared in this study were made from a display that showed characters by coloring and decoloring two colors by inculcating a substance that is melts at 21 °C and 53 °C. In addition, the thermochromic microcapsules designed in this study showed potential future application for color convertible smart windows.

Original languageEnglish
Pages (from-to)1343-1346
Number of pages4
JournalChemistry Letters
Issue number11
Publication statusPublished - 2019

Bibliographical note

Funding Information:
This research was financially supported by a Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2018R1A2B6005220) and the Energy Efficiency & Resources Core Technology Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) granted resources from the Ministry of Trade, Industry & Energy, Republic of Korea (No. 2015010103210) and additional support was pro- vided by the Ministry of Trade, Industry & Energy (MOTIE, Korea) under the Industrial Technology Innovation Program 10067151, smart device connected and textile-based smart function mounted outdoor garment for smart life with ergonomic design.

Publisher Copyright:
© 2019 The Chemical Society of Japan | 1343

All Science Journal Classification (ASJC) codes

  • Chemistry(all)


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