4.6 Article

Insight into color change of reversible thermochromic systems and their incorporation into textile coating

期刊

JOURNAL OF APPLIED POLYMER SCIENCE
卷 138, 期 4, 页码 -

出版社

WILEY
DOI: 10.1002/app.49724

关键词

coatings; degradation; dyes; pigments; polyurethane; textiles

资金

  1. Ministry of Education, Youth, and Sports of the Czech Republic under the project CEITEC 2020 [LQ1601]

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The study delved into the dynamic color and phase change of selected thermochromic systems, incorporating them into polyurethane textile coatings. It explored the colorimetric properties of three commercial reversible leuco dyes-based thermochromic pigments and improved color stability in polyurethane coatings through UV absorbers, offering new possibilities in the field of smart textiles.
Dynamic color and phase change of chosen thermochromic systems were deeply investigated and their incorporation into polyurethane textile coating was developed. The colorimetric properties of three commercial reversible leuco dyes-based thermochromic pigments (TPs) with activation temperature at 38, 50, and 60 degrees C were studied. Color change as a function of temperature was evaluated and colorimetric values were related to phase transition temperatures via differential scanning calorimetry (DSC) measurement. Light fastness of commercial TPs in polyurethane coating was determined by accelerated aging measurement and the color stability has been improved by using ultraviolet absorber (UVA). This research opens new possibilities for smart textiles, which is a very promising field in high-technology materials.

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