CN101792534B - Method for manufacturing bionic micro-nano structure surface material with marine anti-pollution function - Google Patents
Method for manufacturing bionic micro-nano structure surface material with marine anti-pollution function Download PDFInfo
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- CN101792534B CN101792534B CN 201010010082 CN201010010082A CN101792534B CN 101792534 B CN101792534 B CN 101792534B CN 201010010082 CN201010010082 CN 201010010082 CN 201010010082 A CN201010010082 A CN 201010010082A CN 101792534 B CN101792534 B CN 101792534B
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Abstract
The invention discloses a method for manufacturing a bionic micro-nano structure surface material with a marine anti-pollution function, which comprises the following steps of: manufacturing a polymer material negative direction structural template by adopting a wet method replication technique, namely ultrasonic cleaning the surface of an organism with the anti-pollution function in the ocean, pouring aqueous solution of PVA on the surface of the organism, and after the water content in the solution is evaporated, removing a PVA film to form the negative direction template, wherein the concentration of the aqueous solution of the PVA is 20 to 40 percent; preparing a PDMS monomer, uniformly mixing the PDMS monomer with a crosslinking agent in a ratio of the PDMS monomer to the crosslinking agent of 10-20:1, and exhausting the air mixed in the mixture; and pouring a preformed polymer on the manufactured negative direction template, and when the preformed polymer is completely cured, separating the preformed polymer from the negative direction template so as to form the bionic micro-nano structure surface material with the marine anti-pollution function. The bionic micro-nano structure surface material can also be formed by pouring TPU solution of PU solution on the negative direction template. The method has the advantages of simplicity, good operation, easy control and low cost; and materials of the template have low prices and are prepared by a simple process.
Description
Technical field
The present invention relates to a kind of making method with bionic micro-nano structure surface material of marine anti-pollution function.
Background technology
In warm seawater, only need a few weeks longer just can grow 1 decimeter fouling organism, halobiontic adhering to boats and ships and maritime facilities brings great harm.The current material that utilizes the bionics techniques preparation to have anti-pollution function enjoys the investigator to pay close attention to, and is subject in the world increasing investigator's attention.Compare with synthetic material, the surface tissue of natural biological presents the micro-nano hierarchy structure with some specific function of some natures, for example, the resistance when moving about not only can be effectively reduced on the placoid scale surface that shark has a rib-like, and can prevent the growth of fouling organism; The papillary structure of lotus leaf surface makes lotus leaf have good ultra-hydrophobicity and automatically cleaning ability etc.These micro nano surface structures are that biological optimal development is come by long-term genetic evolution, and being nature obtains by eliminating many times screening in reaching the evolutionary process in 500,000,000 years, is the elite that nature is left the mankind for.Therefore, effectively utilize bionics techniques, copy the surfacing with marine anti-pollution function, can greatly shorten the design cycle of antifouling micro-nano structure, raising is designed to power, produces the material with wide spectrum anti-pollution function.
But, because marine organisms all are to live in the seawater, what compare its surface and Surface Contact with terrestrial organism all is seawater, and common bionics techniques can't be applicable to marine organisms fully, and therefore how using reasonably effectively, bionics techniques is a major issue.
Summary of the invention
Making method with bionic micro-nano structure surface material of marine anti-pollution function of the present invention is comprised of following steps:
A, employing wet method replica technique are made macromolecular material negative sense stay in place form, the organism surface that has antifouling ability in the ocean is carried out ultrasonic cleaning, the aqueous solution of PVA is poured into its surface, after the moisture evaporation in solution, the PVA film that forms is taken off from organism surface, formed the negative sense template with organism surface microstructure of macromolecular material; Wherein the concentration of the PVA aqueous solution is 20%~40%;
B, configuration PDMS performed polymer or TPU solution or PU solution are mixed evenly by PDMS monomer and linking agent, and its quality proportioning is the PDMS monomer: linking agent=10~20: 1, and leave standstill and discharged the air of sneaking in 10-20 minute; Or TPU is dissolved in butanone or dimethyl formamide or the tetrahydrofuran (THF), be mixed with 2-20% solution; Or PU is dissolved in dimethyl formamide or N,N-DIMETHYLACETAMIDE or the N-Methyl pyrrolidone, be mixed with 2-20% solution;
C, PDMS performed polymer or TPU solution or PU solution are watered on the negative sense template of making, until performed polymer solidify fully or solvent evaporates after separate with the negative sense template, form the bionic micro-nano structure surface material with marine anti-pollution function.
Making method with bionic micro-nano structure surface material of marine anti-pollution function of the present invention has following advantage: 1. need not drying treatment is done on halobiontic surface, and the wet method that directly adopts water miscible macromolecular material copies the negative sense template, prevented because the source organism surface structural damage that the processing such as drying cause makes the structure of bionical making and source organism surface structure in full accord;
2. anti-fouling material is a kind of water white elastopolymer, has very strong close organic performance and hydrophobic performance, has simultaneously good elasticity, chemical stability, heat-resisting winter hardiness and erosion resistance; As the base material of micro-processing technology of research marine anti-pollution, it has shown ideal material characteristics: nontoxic pollution-free, good hydrophobicity, automatically cleaning, prevent that marine organisms from adhering to etc.;
3. method of the present invention is simple, good operation, and easy to control, cost is low; Mould material low price, proportioning process are simple;
4. but negative sense template Reusability is fit to scale operation.
Embodiment
Embodiment 1. bionical making have the anti-pollution function material of black scraper Puffer fish fish-skin surface micro-nano structure
1, makes the negative sense template of the micro-nano structure on black scraper Puffer fish fish-skin surface
Choose black scraper Puffer fish fish-skin and placed the clear water ultrasonic cleaning 10 minutes, take out stand-by;
The PVA aqueous solution of configuration 20%~40%, it is poured into black scraper Puffer fish fish-skin surface, time of repose is at least 48 hours under the natural condition, and the PVA film with formation behind moisture evaporation separates with fish-skin, thereby obtains the negative sense template of black scraper Puffer fish fish-skin surface micro-nano structure.
2, make the anti-pollution function material with black scraper Puffer fish fish-skin surface micro-nano structure
Be 10~20: 1 by PDMS monomer and linking agent quality proportioning, the configuration performed polymer leaves standstill and discharged the air of sneaking in 10~20 minutes;
The performed polymer that configures is watered on the negative sense template of making, leave standstill under the normal temperature and treated that performed polymer curing separated the negative sense template later with it in 24 hours, thereby obtain having the anti-pollution function material of black scraper Puffer fish fish-skin surface micro-nano structure.
Embodiment 2. bionical making have the anti-fouling anti-drag functional materials of shark fish-skin surface micro-structure
1, makes the negative sense template of the microstructure on shark fish-skin surface
Choose suitable big or small shark skin and remove subcutis, placed the clear water ultrasonic cleaning 10 minutes, take out stand-by;
The PVA aqueous solution of configuration 5%-20% with its surface that is poured into shark skin, is inserted in 40 ℃-70 ℃ the baking oven, and the PVA film separates with shark skin behind moisture evaporation, thereby obtains the negative sense template of shark skin surface microstructure.
2, make the anti-fouling anti-drag functional materials with shark fish-skin surface micro-structure
TPU is dissolved in the butanone (or dimethyl formamide or tetrahydrofuran (THF)), is mixed with 2-20% solution.
Water on the negative sense template of making configuring TPU solution, leave standstill under the normal temperature and treated in 24-48 hour the negative sense template to be separated with it after the solvent evaporates, thereby obtain having the anti-fouling anti-drag functional materials of shark fish-skin surface micro-structure.
The anti-pollution function material that embodiment 3. bionical making have fish scale microstructure and arrange
1. make the microstructure on fish scale surface and the negative sense template of arranging
Choose suitable big or small fish and remove epidermis and the scale that subcutis keeps body surface, place the rear taking-up of clear water cleaning stand-by;
The PVA aqueous solution of configuration 10%-30%, it is poured on the surface of fish, insert in 40 ℃-70 ℃ the baking oven, behind moisture evaporation, the PVA film that forms is separated with the Fish surface, thereby obtain the microstructure on fish scale surface and the negative sense template of arranging.
2. make the anti-pollution function material that has fish scale surface micro-structure and arrange
PU is dissolved in the dimethyl formamide (or N,N-DIMETHYLACETAMIDE or N-Methyl pyrrolidone), is mixed with 2-20% solution.
The PU solution that configures is watered on the negative sense template of making, leave standstill under the normal temperature and treated in 24-48 hour after the solvent evaporates negative sense template to be separated with it, thereby obtain having fish scale surface micro-structure and the anti-pollution function material of arranging.
Claims (1)
1. making method with bionic micro-nano structure surface material of marine anti-pollution function is characterized in that: be comprised of following steps:
A, employing wet method replica technique are made macromolecular material negative sense stay in place form, the organism surface that has antifouling ability in the ocean is carried out ultrasonic cleaning, the aqueous solution of PVA is poured into its surface, after the moisture evaporation in solution, the PVA film that forms is taken off from organism surface, formed the negative sense template with organism surface microstructure of macromolecular material; Wherein the concentration of the PVA aqueous solution is 20%~40%;
B, preparation PDMS performed polymer or TPU solution or PU solution are mixed evenly by PDMS monomer and linking agent, and its quality proportioning is the PDMS monomer: linking agent=10~20: 1, and leave standstill and discharged the air of sneaking in 10-20 minute; Or TPU is dissolved in butanone or dimethyl formamide or the tetrahydrofuran (THF), be mixed with 2-20% solution; Or PU is dissolved in dimethyl formamide or N,N-DIMETHYLACETAMIDE or the N-Methyl pyrrolidone, be mixed with 2-20% solution;
C, PDMS performed polymer or TPU solution or PU solution are watered on the negative sense template of making, until performed polymer solidify fully or solvent evaporates after separate with the negative sense template, form the bionic micro-nano structure surface material with marine anti-pollution function.
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Families Citing this family (6)
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CN102304233B (en) * | 2011-06-16 | 2012-11-07 | 中国船舶重工集团公司第七二五研究所 | Method for preparing antifouling material with surface of ridged microstructure |
DE102012210294A1 (en) | 2012-06-19 | 2013-12-19 | Evonik Industries Ag | Anti-fouling additives, process for their preparation and their use in coatings |
CN109337105B (en) * | 2018-06-12 | 2021-03-16 | 中国船舶重工集团公司第七二五研究所 | Method for preparing hydrophilic-hydrophobic interaction distribution microstructure surface |
CN109651818A (en) * | 2018-12-06 | 2019-04-19 | 中国科学院海洋研究所 | A method of preparing the bionical superslide surface with self-healing properties |
CN109648879B (en) * | 2019-01-21 | 2021-02-26 | 北京工业大学 | Super-hydrophobic surface based on PDMS (polydimethylsiloxane) bionic sharkskin replica and preparation method thereof |
CN112590083B (en) * | 2020-12-10 | 2022-06-10 | 南京航空航天大学 | Method for preparing bionic adhesion material based on micro-nano additive |
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Non-Patent Citations (2)
Title |
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Jinming Xi et al.《Biomimic Superhydrophobic Surface with High Adhesive Forces》.《Ind. Eng. Chem. Res.》.2008,第47卷(第17期), * |
宋巍.《聚合物表面拓扑结构对蛋白质吸附、细胞黏附的影响》.《中国优秀硕士学位论文全文数据库医药卫生科技辑》.2009,(第5期), * |
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