温度自适应双模态控温涂层用于混凝土结构热管理

doi:10.11896/cldb.24100243

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Abstract Achieving temperature self-regulation of concrete structure infrastructure without intervention is of great significance for ensuring structural safety and stability, comfortable internal environment, and reducing energy consumption. Therefore, a dual-mode temperature control coating consisting of a bottom high reflection layer and a surface thermochromic layer have been developed to achieve heat absorption and insulation of concrete structures at low temperatures and reflection cooling at high temperatures. In this work, suitable thermochromic microcapsules and coa-tings were first prepared, and then a double-layer dual-mode temperature control coating was fabricated with thermochromic coatings and high reflectivity coatings containing rutile titanium dioxide. The influence of microcapsule dosage on coating color changing ability, mechanical properties, adhesive properties, glossiness, and solar modulation ability was studied. The modal conversion stability under UV aging and temperature cycles was verified, and the temperature control performance of the coating on concrete structures under different environmental temperature was explored. The results show that a dual-mode temperature control coating with 20% microcapsule content has satisfied comprehensive performance. The coating can achieve over 80% visible light modulation and over 30% solar light modulation. After 2 000 hours of UV aging or 500 temperature cycles, there is no significant attenuation of modulation ability. The coating can effectively achieve temperature adaptive intelligent thermal ma-nagement of concrete structures in complex environmental temperatures. It demonstrates the significant potential of coating materials for intelligent thermal management applications in concrete structures and emphasizes the importance of exploring sustainable temperature adaptive solutions.

Key words： microcapsule thermal management coating thermochromic solar modulation

Published: 10 November 2025 Online: 2025-11-10

CLC number:

U214.6

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	Articles by authors
	GUAN Wenxun
	CHENG Guanzhi
	LI Wang
	WU Ruidong
	LI Dalin
	XIE Yongjiang
	LI Shaoqing

Cite this article:

GUAN Wenxun,CHENG Guanzhi,LI Wang, et al. Temperature Adaptive Dual-mode Temperature-control Coating for Thermal Management of Concrete Structures[J]. Materials Reports, 2025, 39(21): 24100243-7.

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https://www.mater-rep.com/EN/10.11896/cldb.24100243 OR https://www.mater-rep.com/EN/Y2025/V39/I21/24100243

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