Preparation of artificial super-wetting lotus-leaf-shaped Janus film

A lotus leaf and artificial technology, which is applied in the field of preparation of artificial super-wetting lotus leaf-shaped Janus films, can solve the problems of cumbersome steps, high cost, and complicated development process
CN111791402AInactive Publication Date: 2020-10-20SOUTHWEST FORESTRY UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTHWEST FORESTRY UNIVERSITY
Publication Date
2020-10-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to preparation of an artificial super-wetting lotus leaf-shaped Janus film, in particular to a bionic lotus leaf surface microstructure super-wetting film with a super-wetting surface. The method comprises the following steps: carrying out bionic fine modification on the surface of a cured PDMS elastomer by adopting a soft printing technology and carrying out replication andtranscription twice, so as to prepare the super-wetting Janus film similar to a lotus leaf micro-nano structure. The super-wetting surface is constructed on the surface of the PDMS elastomer in a bionic manner, the super-wetting characteristic of the artificial lotus leaf-shaped surface is simulated, and the prepared Janus film has a nano lotus leaf-shaped super-hydrophilic surface and dodecanol modified super-hydrophobicity. The water contact angles of the super-hydrophobic side and the super-hydrophilic side of the Janus film are respectively greater than 150 degrees and 5 degrees, which indicates that the Janus wettability is prepared on one PDMS elastomer.
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Description

technical field

[0001] The invention belongs to the technical field of superwetting interface, and in particular relates to the preparation of an artificial superwetting lotus-leaf Janus film. Background technique

[0002] Wood is the most precious wealth that nature bestows on human beings. There are many types of wood with different functions. Due to the natural characteristics of wood, its use is very wide. Wood is mainly used in two major fields of engineering and industry, including construction, military industry, vehicles and ships, textiles, wood-based panels, industrial and agricultural tools, furniture, musical instruments, sports equipment, wood products, sleepers, bridges, docks and embankment piles, etc. Wood is a porous and anisotropic natural organic polymer compound, which is easy to decay and insects. When it is used as a coastal building material or a wooden ship, it is often attacked by marine borers. Wood is easy to burn, causing many inevitable fires, e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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