Applications of Polymer, Composite, and Coating Materials
- Shaozhe Shi
Shaozhe Shi
College of Polymer Science and Engineering, National Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu, Sichuan 610065, China
More by Shaozhe Shi
- Xiaohan Wang
Xiaohan Wang
College of Polymer Science and Engineering, National Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu, Sichuan 610065, China
More by Xiaohan Wang
- Bo Wang
Bo Wang
College of Polymer Science and Engineering, National Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu, Sichuan 610065, China
More by Bo Wang
- Yishen Zhao
Yishen Zhao
College of Polymer Science and Engineering, National Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu, Sichuan 610065, China
More by Yishen Zhao
- Guangxian Li
Guangxian Li
College of Polymer Science and Engineering, National Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu, Sichuan 610065, China
More by Guangxian Li
- Xia Liao*
Xia Liao
College of Polymer Science and Engineering, National Key Laboratory of Advanced Polymer Materials, Sichuan University, Chengdu, Sichuan 610065, China
*Email: [emailprotected]
More by Xia Liao
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ACS Applied Materials & Interfaces
Cite this: ACS Appl. Mater. Interfaces 2025, XXXX, XXX, XXX-XXX
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https://pubs.acs.org/doi/10.1021/acsami.5c03611
Published April 24, 2025
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The controllable design and optimization of porous structures can endow the foam with unique functionalities and expand its application domains. In this work, we propose a dual-stage supercritical carbon dioxide foaming technology that leverages the synergistic effects of the pressure difference inside and outside the cells and the surface tension between the polymer matrix and gas, enabling direct conversion from engineering plastic polymer with a rigid molecular chain to the closed-cell reentrant foam. Using polycarbonate siloxane copolymer (Si-PC) resin as a matrix, we successfully prepared the reentrant concave angle Si-PC foam (R-PCF) with various transformation degrees by adjusting key process parameters in both first and second stages. R-PCF features a unique reversible thermal-induced structural transformation, excellent thermal insulation performance (the final temperature is 68 °C lower than the hot table and 17 °C lower than the Si-PC foam under stable heat source conditions), and chemical resistance. Additionally, the introduction of the reentrant concave angle structure effectively optimizes energy transfer pathways, making the R-PCF have superior energy absorption properties, improving the competitiveness of R-PCF for potential applications in thermal switches, intelligent thermal-drive devices, and protective and thermal management fields.
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- Chemical structure
- Energy
- Foaming
- Foams
- Porosity
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ACS Applied Materials & Interfaces
Cite this: ACS Appl. Mater. Interfaces 2025, XXXX, XXX, XXX-XXX
Click to copy citationCitation copied!
Published April 24, 2025
Publication History
Received
Accepted
Revised
Published
online
© 2025 American Chemical Society
Request reuse permissions
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