10.1021/acs.iecr.8b06092.s001
Xiaopeng Liu
Xiaopeng
Liu
Zhang Chen
Zhang
Chen
Guang Yang
Guang
Yang
Yanfeng Gao
Yanfeng
Gao
Bioinspired Ant-Nest-Like Hierarchical Porous Material
Using CaCl<sub>2</sub> as Additive for Smart Indoor Humidity Control
American Chemical Society
2019
CaCl 2
Bioinspired Ant-Nest-Like Hierarchical Porous Material
RH
performance
water vapor
humidity control material
2019-04-02 17:46:16
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Bioinspired_Ant-Nest-Like_Hierarchical_Porous_Material_Using_CaCl_sub_2_sub_as_Additive_for_Smart_Indoor_Humidity_Control/7940336
Inspired
by the functional microstructure of the ant nest, a humidity
control material was prepared by the sintering of modified low-grade
sepiolite. A hierarchical porous structure accelerates the diffusion
of water vapor. Meanwhile, CaCl<sub>2</sub> was applied subtly to
enhance absorption/desorption of water vapor in response to the change
of air relative humidity. The water vapor adsorption–desorption
content reaches 550 g·m<sup>–2</sup> with a steady performance
after 10 cycles. The flexural strength of the specimen is excessive,
10 MPa. Furthermore, two model houses were used to evaluate the performance
of the material in a real environment. The result indicated that it
could narrow indoor humidity fluctuation by more than 10% RH spontaneously
and mainly maintained the humidity within a healthy range (RH 40–70%)
without energy consumption. This invention makes it possible for large-scale
fabrication of this material in terms of wall bricks for smart indoor
humidity control.