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High-Contrast and Fast Photorheological Switching of a Twist-Bend Nematic Liquid Crystal
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Recent Research Progress on Polyurethane Solid-Solid Phase Change Materials
Ziqiang Wang1, Jingjing Xiao1, Tengkun Yao1
1School of Civil Engineering, Chang'an University, Xi'an 710064, China.
Polymers
|July 30, 2025
Summary
Polyurethane solid-solid phase change materials (PUSSPCMs) offer stable thermal energy storage. This review details their preparation, performance enhancement via dynamic covalent bonds and nanofillers, and diverse applications, guiding future high-performance material development.
Area of Science:
- Materials Science
- Chemical Engineering
- Energy Storage
Background:
- Global energy transitions necessitate advanced thermal energy storage solutions.
- Engineering materials face challenges with temperature fluctuations.
- Polyurethane solid-solid phase change materials (PUSSPCMs) are promising due to their unique properties.
Purpose of the Study:
- To systematically review recent research progress on PUSSPCMs.
- To elucidate PUSSPCM preparation and performance enhancement strategies.
- To summarize applications and propose future research directions.
Main Methods:
- Review of material systems and core preparation processes for PUSSPCMs.
- Summary of performance studies, focusing on dynamic covalent bonds and nanofiller composites.
- Analysis of innovative applications and thermomodulation advantages.
Main Results:
- PUSSPCMs exhibit designable molecular structures, no leakage risk, and high bulk stability.
- Dynamic covalent bonds and nanofiller composites significantly enhance thermophysical properties.
- PUSSPCMs demonstrate innovative applications and thermomodulation benefits across various fields.
Conclusions:
- PUSSPCMs are highly effective for thermal energy storage and temperature regulation.
- Future research should focus on multifunctionalization, scale-up preparation, and green material exploration.
- Multi-scale simulations are crucial for balancing performance requirements in PUSSPCM development.
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