Title:
SUPER-HYDROPHOBIC HEMISPHERICAL ARRAY CAPABLE OF REALIZING DROPLET PANCAKE BOUNCE FUNCTION
Document Type and Number:
WIPO Patent Application WO/2020/223887
Kind Code:
A1
Abstract:
Disclosed is a super-hydrophobic hemispherical array capable of realizing a droplet pancake bounce function. The super-hydrophobic hemispherical array is of an arc shape with a narrow upper portion and a wide lower portion, wherein an included angle from a base-air interface through external air to a base-hemisphere interface is α, the diameter of a contact surface between a hemispherical structure and a base is d, a distance between adjacent hemispheres is s, the vertical height between the top of a hemisphere and a bottom surface of the base is h, and 70° ≤ α ≤ 90°, 900 μm ≤ d ≤ 1700 μm, s ≤ 550 μm and 600 μm ≤ h ≤ 1100 μm are respectively met; and a contact angle of the super-hydrophobic hemisphere array with a droplet is greater than or equal to 150°, and a rolling angle thereof is less than or equal to 10°. The super-hydrophobic hemisphere array can not only present a droplet pancake bounce phenomenon, but also has a better mechanical strength than existing columnar arrays capable of realizing a droplet pancake bounce function.
Inventors:
SONG JINLONG (CN)
HUANG LIU (CN)
LIU XIN (CN)
WANG XUYUE (CN)
SUN YUWEN (CN)
HUANG LIU (CN)
LIU XIN (CN)
WANG XUYUE (CN)
SUN YUWEN (CN)
Application Number:
PCT/CN2019/085758
Publication Date:
November 12, 2020
Filing Date:
May 07, 2019
Export Citation:
Assignee:
UNIV DALIAN TECH (CN)
International Classes:
C25F3/04; C08J7/12
Foreign References:
| US20190118232A1 | 2019-04-25 | |||
| CN106807608A | 2017-06-09 | |||
| CN107573531A | 2018-01-12 | |||
| CN109679127A | 2019-04-26 | |||
| US20190127856A1 | 2019-05-02 |
Other References:
GAO, MINGQIAN: "Research on super hydrophobic columnar array structures capable of droplet pancake bouncing", CHINESE MASTER’S THESES FULL-TEXT DATABASE, ENGINEERING SCIENCE AND TECHNOLOGY I, no. 04, 15 April 2018 (2018-04-15), DOI: 20200117110414Y
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