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Inorganic substance super-hydrophobic paint and application thereof

A technology of super-hydrophobic coatings and inorganic substances, which is applied in the direction of anti-fouling/underwater coatings, coatings, layered products, etc. Strong self-cleaning effect of waterproof and antifouling effect

Active Publication Date: 2015-06-03
天津超疏水纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide low-cost raw material preparation technology and super-hydrophobic coatings with a wide range of applications in view of the shortcomings of the current technology, such as high cost and limited use.

Method used

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  • Inorganic substance super-hydrophobic paint and application thereof
  • Inorganic substance super-hydrophobic paint and application thereof
  • Inorganic substance super-hydrophobic paint and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Preparation of superhydrophobic coatings

[0040] The silica sol was injected into the reactor equipped with 80nm polystyrene (PS) nanospheres prepared according to method three under negative pressure conditions, and the template was immersed for 2 hours, then the reactor was sealed and placed in a constant temperature box, and reacted at 60 ° C for 12 hours. 570°C temperature program removes the template to obtain a solid block micro-nano composite polyhedron, and the obtained block micro-nano composite polyhedron is fully ground to powder, and the particle size distribution range of the powder is 100nm-5000nm (Nano particle size and potential analyzer of British Malvern company Nano-ZS90 test, the following steps and implementation cases are the same); take 0.1g of micro-nano composite polyhedron powder into the reactor, then add 10.0mL (7.88g) of dispersion acetone, and add 20.6μL (0.30 g) Perfluorooctyltrimethoxysilane, the modification reaction was carried out...

Embodiment 2

[0049] (1) Preparation of superhydrophobic coatings

[0050] The silica sol was injected into the reactor equipped with 200nm polystyrene (PS) nanospheres prepared by method three under negative pressure conditions, and the template was immersed for 2 hours, then the reactor was sealed and placed in a constant temperature box, and reacted at 60°C for 12 hours. 570 ° C temperature program removed the template to obtain a solid block micro-nano composite polyhedron, the resulting block micro-nano composite polyhedron is fully ground to powder, take 0.1g of the micro-nano composite polyhedron powder into the reactor, and then add 10.0mL (7.88g ) dispersion liquid acetone, when the temperature of the system reaches 25°C, add 36.9 μL (0.57 g) of perfluorodecyltrimethoxysilane, and carry out the modification reaction for 12 hours. After the reaction, the mass fraction of the micro-nano composite polyhedron is controlled to be 2.7% by volatilization. That is, the superhydrophobic coa...

Embodiment 3

[0056] (1) Preparation of superhydrophobic coatings

[0057] The silica sol was injected into the reactor equipped with 300nm polyacrylamide (PAM) nanospheres prepared by method 1 under negative pressure conditions, and the template was immersed for 2 hours, then the reactor was sealed and placed in an incubator, and reacted at 60°C for 12 hours. Soak in water to remove the template to obtain a solid block micro-nano composite polyhedron, fully grind the obtained block micro-nano composite polyhedron to powder, take 0.1g of the micro-nano composite polyhedron powder into the reactor, and then add 10.0mL (7.88g) to disperse Liquid acetone, when the temperature of the system reaches 25°C, add 19.1 μL (0.22 g) trifluoropropane trimethoxysilane, carry out the modification reaction for 12 hours, and control the mass fraction of the micro-nano composite polyhedron to 5.0% by volatilization after the reaction is completed, which is prepared Superhydrophobic coatings;

[0058] The pr...

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Abstract

The invention relates to inorganic substance super-hydrophobic paint and application thereof. The paint is prepared in the following method: silica sol is injected into a reactor with a nano microsphere template under a negative pressure condition, the template is immersed in the silica sol for 2h, then the reactor is sealed and stored in a thermostat, the silica sol and the template react at the temperature of 60 DEG C for 12h, the template is removed by virtue of heating or water immersion, a solid blocked micro-nano composite polygon is obtained, and after the blocked micro-nano composite polygon is dried, the blocked micro-nano composite polygon is ground into powder; the powder is poured into another reactor, dispersion liquid acetone is mixed with the powder, a low-surface-energy silane coupling agent is used for modifying the powder at a temperature of 25 to 50 DEG C, the powder reacts for 10h to 15h, the micro-nano composite polygon powder accounts for 0.5 to 20 percent of the mass of the paint, and the super-hydrophobic paint is prepared. The inorganic substance super-hydrophobic paint can be smeared on the surfaces of various conventional materials, the preparation method of the paint is simple, and the obtained super-hydrophobic surface is excellent in stability.

Description

technical field [0001] The invention relates to the technical field of hydrophobic coating materials, in particular to the preparation and application of a superhydrophobic coating. Background technique [0002] Superhydrophobic performance means that the surface of the object has a water contact angle greater than 150°. The self-cleaning performance of lotus leaves without getting dirty from mud, the self-cleaning performance of moth wing surfaces, the legs of water striders walking freely on the water surface without sinking, the surface of fish bodies keeping themselves clean in oil-polluted water, etc. The phenomenon of superhydrophobicity has attracted great attention of many scholars. Barthlott et al confirmed [W.Barthlott, et al.Planta,1997,202:1.] that the superhydrophobicity of natural surfaces is a synergistic effect of their dual-scale structure (micro-nano structure) and the low surface free energy of related materials combined result. The "self-cleaning" abil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/16C08J7/06C08J7/04D06M11/79C03C17/42C04B41/50B32B33/00
Inventor 张旭杨碧微王小梅刘盘阁
Owner 天津超疏水纳米科技有限公司
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