Unprecedented Ultra‐High Expansion Ratio Foam for Innovative Architecture
Abstract Global climate warming has dramatically increased the demand for space cooling. Materials that integrate superior thermal insulation with passive daytime radiative cooling properties hold significant promise for reducing energy consumption for space cooling during hot summers. In this study...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-05-01
|
| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202501188 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849715251068534784 |
|---|---|
| author | Wenyu Zhong Yichong Chen Dongdong Hu Jiayang Sun Xingyu Jia Ling Zhao |
| author_facet | Wenyu Zhong Yichong Chen Dongdong Hu Jiayang Sun Xingyu Jia Ling Zhao |
| author_sort | Wenyu Zhong |
| collection | DOAJ |
| description | Abstract Global climate warming has dramatically increased the demand for space cooling. Materials that integrate superior thermal insulation with passive daytime radiative cooling properties hold significant promise for reducing energy consumption for space cooling during hot summers. In this study, conduction‐microwave heating assisted CO2 foaming process is used to optimize cell size and expansion ratios, producing PMMA/PVDF foam with an ultra‐high expansion ratio of 120 times and small, uniform cells. The foam is hydrophobic, chemically resistant, and recyclable, with a negative Poisson's ratio structure that gives it outstanding compression strength, elasticity, and flexibility, making it suitable for both everyday use and extreme weather conditions. The inherent properties of the material and its cell structure confer low thermal conductivity (26.69 mW m−1 K−1), high solar reflectance (96.37%), and high infrared emissivity (97.34%). This means that indoor cooling of buildings can be achieved in hot weather (15 °C difference in test results before and after use), meeting the cooling needs of buildings in most countries around the world. The ultra‐high expansion ratio PMMA/PVDF foam demonstrates significant potential in energy conservation, reducing carbon footprints, and promoting sustainability, providing a solution for the development of next‐generation buildings. |
| format | Article |
| id | doaj-art-69d3416e48984192b3dc6e582acdd7cb |
| institution | DOAJ |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-69d3416e48984192b3dc6e582acdd7cb2025-08-20T03:13:27ZengWileyAdvanced Science2198-38442025-05-011219n/an/a10.1002/advs.202501188Unprecedented Ultra‐High Expansion Ratio Foam for Innovative ArchitectureWenyu Zhong0Yichong Chen1Dongdong Hu2Jiayang Sun3Xingyu Jia4Ling Zhao5State Key Laboratory of Chemical Engineering Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. ChinaState Key Laboratory of Chemical Engineering Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. ChinaState Key Laboratory of Chemical Engineering Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. ChinaState Key Laboratory of Chemical Engineering Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. ChinaState Key Laboratory of Chemical Engineering Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. ChinaState Key Laboratory of Chemical Engineering Shanghai Key Laboratory of Multiphase Materials Chemical Engineering School of Chemical Engineering East China University of Science and Technology Shanghai 200237 P. R. ChinaAbstract Global climate warming has dramatically increased the demand for space cooling. Materials that integrate superior thermal insulation with passive daytime radiative cooling properties hold significant promise for reducing energy consumption for space cooling during hot summers. In this study, conduction‐microwave heating assisted CO2 foaming process is used to optimize cell size and expansion ratios, producing PMMA/PVDF foam with an ultra‐high expansion ratio of 120 times and small, uniform cells. The foam is hydrophobic, chemically resistant, and recyclable, with a negative Poisson's ratio structure that gives it outstanding compression strength, elasticity, and flexibility, making it suitable for both everyday use and extreme weather conditions. The inherent properties of the material and its cell structure confer low thermal conductivity (26.69 mW m−1 K−1), high solar reflectance (96.37%), and high infrared emissivity (97.34%). This means that indoor cooling of buildings can be achieved in hot weather (15 °C difference in test results before and after use), meeting the cooling needs of buildings in most countries around the world. The ultra‐high expansion ratio PMMA/PVDF foam demonstrates significant potential in energy conservation, reducing carbon footprints, and promoting sustainability, providing a solution for the development of next‐generation buildings.https://doi.org/10.1002/advs.202501188conduction‐microwave heating assisted CO2 foamingnegative Poisson's ratiopassive daytime radiant cooling (PDRC) materialsPMMA/PVDFultra‐high expansion ratio foam |
| spellingShingle | Wenyu Zhong Yichong Chen Dongdong Hu Jiayang Sun Xingyu Jia Ling Zhao Unprecedented Ultra‐High Expansion Ratio Foam for Innovative Architecture Advanced Science conduction‐microwave heating assisted CO2 foaming negative Poisson's ratio passive daytime radiant cooling (PDRC) materials PMMA/PVDF ultra‐high expansion ratio foam |
| title | Unprecedented Ultra‐High Expansion Ratio Foam for Innovative Architecture |
| title_full | Unprecedented Ultra‐High Expansion Ratio Foam for Innovative Architecture |
| title_fullStr | Unprecedented Ultra‐High Expansion Ratio Foam for Innovative Architecture |
| title_full_unstemmed | Unprecedented Ultra‐High Expansion Ratio Foam for Innovative Architecture |
| title_short | Unprecedented Ultra‐High Expansion Ratio Foam for Innovative Architecture |
| title_sort | unprecedented ultra high expansion ratio foam for innovative architecture |
| topic | conduction‐microwave heating assisted CO2 foaming negative Poisson's ratio passive daytime radiant cooling (PDRC) materials PMMA/PVDF ultra‐high expansion ratio foam |
| url | https://doi.org/10.1002/advs.202501188 |
| work_keys_str_mv | AT wenyuzhong unprecedentedultrahighexpansionratiofoamforinnovativearchitecture AT yichongchen unprecedentedultrahighexpansionratiofoamforinnovativearchitecture AT dongdonghu unprecedentedultrahighexpansionratiofoamforinnovativearchitecture AT jiayangsun unprecedentedultrahighexpansionratiofoamforinnovativearchitecture AT xingyujia unprecedentedultrahighexpansionratiofoamforinnovativearchitecture AT lingzhao unprecedentedultrahighexpansionratiofoamforinnovativearchitecture |