Preparation method of mosquito compound eye-imitating hydrophobic surface material
A technology of surface material and hydrophobic material, which is applied in the field of preparation of a mosquito-like compound eye hydrophobic surface material, can solve problems such as complicated operation process, and achieve the effects of simple and easy operation, excellent performance and reduced production cost in the preparation process.
Inactive Publication Date: 2015-11-11
CHANGZHOU YAHUAN ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology
[0005] The technical problem mainly solved by the present invention: Aiming at the disadvantages of the current production and preparation of hydrophobic materials, mainly through modifying the surface of synthetic materials, the operation process is complicated, etc., a preparation method of bionic hydrophobic surface materials is provided. Engraving technology is used to pattern the colloidal crystals on the surface of the polydimethylsiloxane template. The hemispherical protrusions on the template surface are collapsed when the pressure is applied, and form a close contact with the colloidal surface. When the pressure is removed, the template has a good elastic properties and return to the original shape, thus obtaining a hydrophobic surface material imitating the compound eyes of mosquitoes
Method used
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Experimental program
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Effect test
Embodiment Construction
[0017] Mix acetic acid and water at a ratio of 1:10 and put it into a watering can, spray evenly on the glass surface of 10×10cm, then rinse with deionized water for 1 to 2 minutes to clean the glass; Spin-coat the photoresist on the clean glass surface, set the speed of the homogenizer to 1000-2000r / min, then move it into the oven, and dry it at 105-110°C for 10-20min, take it out and spin-coat the photoresist again, the speed remains the same It is 1000-2000r / min, and then moved into an oven, heated at 105-110°C for 20-40min to obtain a photoresist template with a thickness of 15-20μm; expose the above-mentioned photoresist template under a 900-1000W ultraviolet lamp, Then put it into a sodium hydroxide solution with a concentration of 0.3-0.5mol / L for development, then rinse it with secondary deionized water, and dry it in a high-frequency dryer. The frequency of the dryer is 10-15MHz, and the power is 2-3kW to obtain a cylindrical photoresist plate; heat the photoresist pl...
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The invention relates to a preparation method of a mosquito compound eye-imitating hydrophobic surface material, and belongs to the field of preparation of hydrophobic materials. According to the method, colloidal crystal patterning is carried out on the surface of a polydimethylsiloxane template by soft lithography; hemispheric bumps on the surface of the template are collapsed when pressurized and tightly contact the colloidal surface; when the pressure is removed, the template restores into the original shape due to good elasticity, so that the mosquito compound eye-imitating hydrophobic surface material is obtained. The preparation process of the material is simple and easy to operate; the prepared template can be repeatedly utilized, so that the production cost is reduced; the material prepared by the bionic technology can relatively well adapt to various different natural conditions; and the performance of the product is relatively excellent.
Description
technical field [0001] The invention relates to a preparation method of a hydrophobic surface material imitating mosquito compound eyes, belonging to the field of preparation of hydrophobic materials. Background technique [0002] A large number of biological surfaces in nature have formed a natural and reasonable hydrophobic structure after hundreds of millions of years of natural selection and evolution. The microstructure of natural biological surfaces such as lotus leaves and reeds is very fine, and its hydrophobic performance is far superior to that of ordinary material surfaces. The papillae-like microstructure on the surface of the lotus leaf makes it more hydrophobic than other surfaces, which is the famous "lotus leaf effect". [0003] Hydrophobicity refers to the ability of the surface of an object to repel water, and a superhydrophobic surface generally refers to a surface whose contact angle with water is greater than 150°. The excellent functions of many plant...
Claims
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Inventor 雷思宇林大伟
Owner CHANGZHOU YAHUAN ENVIRONMENTAL PROTECTION TECH