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ISSN : 1225-0112(Print)
ISSN : 2288-4505(Online)
Applied Chemistry for Engineering Vol.35 No.6 pp.593-600
DOI : https://doi.org/10.14478/ace.2024.1052

Reversible Smart Freezing Visualization Materials for Black Ice Indicator

Eui Jin, Seung Wook Jee*,†
Fire & Disaster Prevention Research Center, Kangwon National University, Samcheok 25913, Republic of Korea
*Department of Fire Protection Engineering, Kangwon National University, Samcheok 24549, Republic of Korea

Abstract

Thermochromic and hydrochromic (H) materials were selected to develop a self-sensitive mixture that visually illustrates black ice formation. A 200 μm thick film was prepared to evaluate the thermochromic performance. The freezing visualization materials showed a rapid discoloration response time of 10 s. R0H (정확히 무엇인지 알기 어려워서, full name 작성 부탁드립 니다)(1:8) mixed with the moisture-sensitive material showed an excellent rating response of 19 s. As exposure to moisture increased, the color recovery rate was a maximum of 4.8 times slower than under dry freezing conditions. The color difference performance of the freezing visualization material was up to 31.18 with R0H (1:8) when dry freezing conditions were changed to moisture freezing conditions. When combined with moisture, and the moisture-freezing conditions were formed, the color of the frozen area was darker than the surrounding color and had high visibility. The samples had excellent temperature sensing performance and showed clear color conversion in response to moisture.

초록

 

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