Novel material with hydrophobic function and preparation technology of novel material

A new material and functional technology, applied in the direction of wax coatings, film/flake adhesives, adhesive types, etc., which can solve the problem of inability to process special-shaped surfaces or large-area surfaces, inability to be suitable for outdoor operations, and equipment requirements, etc. problem, to achieve the effect of excellent hydrophobic performance, good hydrophobic function, and excellent material performance

Active Publication Date: 2016-09-21
TIANJIN HEYUE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The electrodeposition or chemical deposition method has requirements for equipment and harsh conditions. The hydrothermal method and sol-gel method can only process a small area of ​​the surface. As for the carbon nanotube method, the required conditions are more stringent, requiring high temperature or limited equipment
The electrospinning method has limitations on equipment and cannot be applied to outdoor operations
The porous alumina template required by the template me

Method used

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  • Novel material with hydrophobic function and preparation technology of novel material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The substrate is made of vapor-deposited polyethylene terephthalate film (VMPET), and the PET surface is coated. Use heat sealant polyurethane TPU resin adhesive, add a certain amount of solvent ethyl acetate to dissolve completely, add a certain amount of dispersant silicon dioxide and foaming agent sodium bicarbonate to fully mix, fully stir at room temperature and then let it stand Then get the paint. Wherein the dispersant is silicon dioxide microparticles with a particle size of 12nm. Foaming agent is sodium bicarbonate, food grade. The solvent is ethyl acetate, food grade. The weight ratio of the adhesive layer raw material, dispersant particles, foaming agent and solvent is =1:0.01:0.01:3. The viscosity of the resulting paint was 1900 cps. The resulting coating is then applied to the surface of the substrate by a roll coating process.

[0031] After passing through the coating and drying process, while drying to form a film to obtain an adhesive layer, the m...

Embodiment 2

[0034] The substrate is made of polyethylene film (LDPE), and the surface is coated. Using acrylic resin adhesive products, add a certain amount of solvent ethyl acetate to dissolve completely, add a certain amount of dispersant titanium dioxide and foaming agent azodicarbonamide to fully mix, fully stir at room temperature, and then stand still to obtain a coating . Wherein the dispersant is titanium dioxide microparticles with a particle size of 10 microns. Foaming agent is azodicarbonamide, food grade. The solvent is ethyl acetate, food grade. The weight ratio of the adhesive layer raw material, dispersant particles, foaming agent and solvent is =1:0.4:0.1:4. The viscosity of the resulting paint was 1500 cps. The resulting coating is then coated on the surface of the substrate by a gravure coating process.

[0035] After passing through the coating and drying process, while drying to form a film to obtain an adhesive layer, the microporous foaming of the adhesive layer...

Embodiment 3

[0038] The base material adopts polystyrene sheet (PS). Adopt heat-sealing varnish adhesive product (160 parts by weight of polyester resin + 10 parts by weight of acrylic resin), add a certain amount of mixed solvent of toluene and butanone, after the dissolution is complete, add a certain amount of dispersant titanium dioxide and foaming agent The 4,4'-oxidized bisbenzenesulfonyl hydrazide was thoroughly mixed, fully stirred at room temperature and left to stand to obtain a coating. The dispersant is titanium dioxide microparticles with a particle size of 1 nm. Foaming agent is 4,4'-oxidized bisbenzenesulfonyl hydrazide, food grade. The weight ratio of the adhesive layer raw material, dispersant particles, foaming agent and solvent is =1:0.04:0.03:5. The resulting dope had a viscosity of 1000 cps. The resulting coating is then applied to the surface of the substrate by a spraying process.

[0039] After passing through the coating and drying process, while drying to form a...

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Abstract

The invention discloses a novel material with a hydrophobic function and a preparation technology of the novel material. The surface of the novel material is of a bionic structure of a lotus leaf. The novel material comprises a substrate layer, a microcellular foamed modified adhesive layer and a wax-containing layer from bottom to top, wherein the microcellular foamed modified adhesive layer is coated with the wax-containing layer in a dispersion manner. The preparation method comprises the following steps: firstly, while the adhesive layer is prepared, sufficiently mixing raw materials of the adhesive layer with a dispersing agent and a foaming agent, coating the surface of a substrate, implementing a coating foaming process so as to obtain a modified substrate, and finally coating the outer surface of the modified substrate with wax in the dispersing manner, thereby obtaining the novel material. The rough structure on the surface of the novel material disclosed by the invention is generally similar to mastoid process of a micro-nano structure on the rough surface of the lotus leaf and the structure of a hydrophobic wax material on the surface, and a lotus leaf bionic structure is achieved, so that a good hydrophobic function can be achieved.

Description

technical field [0001] The invention relates to a new material and its preparation process, in particular, a new material with hydrophobic function and its preparation process. Background technique [0002] In recent years, the phenomenon of superhydrophobicity (contact angle greater than 150°, rolling angle less than 10°) and self-cleaning phenomenon in nature has aroused people's research interest. The artificially prepared superhydrophobic surface can be used for the antifouling of automobile windows, glass windows of buildings and glass exterior walls. It can be used for radar and antenna surfaces to prevent signal attenuation caused by adhesion of snow and rain. The superhydrophobic surface of the material can inhibit The adhesion of microorganisms on the surface of objects can inhibit the coagulation phenomenon on the surface of polymers, and it can be used to reduce fluid resistance in the inner pipe wall of water and oil transportation. The research on superhydropho...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J7/04C09J175/04C09J133/00C09J167/00C09J103/02C09D191/06C09D123/06
Inventor 张治国雷加元岳广磊
Owner TIANJIN HEYUE NEW MATERIAL CO LTD
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