Thermoresponsive Polymer Induced Sweating Surfaces as an Efficient Way to Passively Cool Buildings

Buildings can be effectively cooled by a bioinspired sweating‐like action based on thermoresponsive hydrogels (PNIPAM), which press out their stored water when exceeding the lower critical solution temperature. The surface temperature is reduced by 15 °C compared to that of a conventional hydrogel (...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2012-10, Vol.24 (39), p.5352-5356
Main Authors: Rotzetter, A. C. C., Schumacher, C. M., Bubenhofer, S. B., Grass, R. N., Gerber, L. C., Zeltner, M., Stark, W. J.
Format: Article
Language:English
Subjects:
Acrylic Resins - chemistry
bioinspired materials
Buildings
Construction Materials
energy efficient
Mechanical Phenomena
PNIPAM
smart
Surface Properties
sustainable
Temperature
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Summary:Buildings can be effectively cooled by a bioinspired sweating‐like action based on thermoresponsive hydrogels (PNIPAM), which press out their stored water when exceeding the lower critical solution temperature. The surface temperature is reduced by 15 °C compared to that of a conventional hydrogel (pHEMA) and by 25 °C compared to the bare ground.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201202574