Water-absorbing porous structure with superhydrophilic nature
- Water-absorbing porous structure with superhydrophilic nature
- 김성진; 문명운; 이광렬; 김호영
- Micro&Nano-structure; Hydrophilic; Wicking; Superhydrophilic; Non-woven fabric; Capillarity
- Issue Date
- International Symposium on Nature Inspired Technology(ISNIT2010)
- Supply of water is inevitable for the survival of animals and plants. It makes water transportation to
desired part inside creature as crucial problem. Capillary action is one of main ways to control water inside or
on the surface of creature. For example, plant roots can pull water up among soil by capillary wicking and lower
plants like mosses, liverworts and lichens with no roots and no vascular system can distribute water uniformly
on their own body by superhydrophilic surface. In industry, there are also many requirements for good water
transportation system like micro- and nano-channels, ink-jet printing, painting, and HVAC (heating, ventilation
and air-conditioning). Especially, maintaining uniformly thin flows on wide surface for liquid desiccant
dehumidifier among HVAC is a crucial problem to enhance efficiency by increasing heat/mass transfer area.
Here, we introduce a superhydrophilic porous surface using PET(polyethylene terephthalate) non-woven
fabric to provide great water absorbing performance by enhanced capillary action. Our superhydrophilic fabric
can absorb water up like the root of the plant and spread water quickly and uniformly like the surface of lower
plants. Moreover, great capillary performance of our superhydrophilic fabric makes flows not affected by
gravitational direction even on the vertically placed surface.
- Appears in Collections:
- KIST Publication > Conference Paper
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