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Preparation method of self-repairing fluorocarbon coating for ships

A fluorocarbon coating and self-healing technology, applied in the preparation of microspheres, epoxy resin coatings, coatings, etc., can solve the problems of coating cracks and poor salt spray resistance of fluorocarbon coatings, achieve good fluidity and enhance siphon The effect with broad application prospects

Inactive Publication Date: 2018-06-01
常州万博金属构件厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main technical problem to be solved by the present invention is to provide a self-repairing fluorocarbon coating for ships in view of the defects that the outer surface coating of the ship is prone to scratches and cracks and the fluorocarbon coating is poor in salt spray resistance when the ship is docked at the port. Preparation method of carbon coating

Method used

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  • Preparation method of self-repairing fluorocarbon coating for ships

Examples

Experimental program
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Effect test

example 1

[0026]Add 20g of urea and 70mL of formaldehyde solution with a mass fraction of 35% into the Erlenmeyer flask, stir until the urea is completely dissolved, adjust the pH of the reaction system in the Erlenmeyer flask to 8.5 with triethanolamine, put the Erlenmeyer flask into a water bath, Heating to 70°C, keeping it warm for 40 minutes to obtain a viscous transparent liquid, after cooling to room temperature, adjusting the pH to 6.8 with 10% hydrochloric acid to obtain a urea-formaldehyde prepolymer; mix fluorocarbon resin masterbatch with E- 51 type epoxy resin masterbatches were mixed according to the mass ratio of 3:2 to obtain oil-soluble capsule cores, and 100 mL of sodium dodecylbenzenesulfonate solution with a mass fraction of 3% and 40 g of oil-soluble capsule cores were added to the four-necked flask. , 0.5mL n-butanol, start the agitator, stir at a speed of 500r / min, emulsify and disperse for 30min, and obtain an oil-in-water emulsion; add 60mL urea-formaldehyde prepo...

example 2

[0028] Add 23g of urea and 75mL of formaldehyde solution with a mass fraction of 35% into the Erlenmeyer flask, stir until the urea is completely dissolved, adjust the pH of the reaction system in the Erlenmeyer flask to 9.0 with triethanolamine, put the Erlenmeyer flask into a water bath, Heating up to 75°C, keeping it warm for 45 minutes to obtain a viscous transparent liquid, after cooling to room temperature, adjusting the pH to 6.9 with 10% hydrochloric acid to obtain a urea-formaldehyde prepolymer; mix fluorocarbon resin masterbatch with E- 51 type epoxy resin master batches are mixed according to the mass ratio of 3: 2 to obtain oil-soluble capsule cores, and 110 mL of sodium dodecylbenzenesulfonate solution with a mass fraction of 3% and 43 g of oil-soluble capsule cores are added to the four-necked flask. , 0.6mL n-butanol, start the agitator, stir with a rotating speed of 525r / min, emulsify and disperse for 33min, and obtain an oil-in-water emulsion; add 65mL urea-for...

example 3

[0030] Add 25g of urea and 80mL of formaldehyde solution with a mass fraction of 35% into the Erlenmeyer flask, stir until the urea is completely dissolved, adjust the pH of the reaction system in the Erlenmeyer flask to 9.5 with triethanolamine, put the Erlenmeyer flask into a water bath, Heating up to 80°C, keeping it warm for 50 minutes to obtain a viscous transparent liquid, after cooling to room temperature, adjusting the pH to 7.0 with 10% hydrochloric acid to obtain a urea-formaldehyde prepolymer; mixing fluorocarbon resin masterbatch with E- 51 type epoxy resin master batches were mixed according to the mass ratio of 3:2 to obtain oil-soluble capsule core, and 120mL of 3% sodium dodecylbenzenesulfonate solution and 45g oil-soluble capsule core were added to the four-necked flask. , 1.0mL n-butanol, start the agitator, stir with a rotating speed of 550r / min, emulsify and disperse for 35min, and obtain an oil-in-water emulsion; add 70mL urea-formaldehyde prepolymer to 130...

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Abstract

The invention relates to the technical field of coating preparation and in particular relates to a preparation method of self-repairing fluorocarbon coating for ships. The self-repairing fluorocarboncoating for the ships is prepared by taking a self-made oil-soluble capsule core and a sodium dodecyl benzene sulfonate solution as raw materials, emulsifying and dispersing to obtain oil-in-water emulsion, doping a self-made urea formaldehyde pre-polymer into the oil-in-water emulsion, treating to obtain a microcapsule, mixing and stirring a self-made co-solvent, PVDF (Polyvinylidene Fluoride) fluorocarbon resin and titanium white powder to obtain a pre-dispersed raw material and finally, stirring the pre-dispersed material, a self-made carbon nanotube dispersion solution and the microcapsuleat a high speed, and stirring and curing at a low speed; tourmaline powder is adsorbed on a rough surface of the microcapsule and can be used for preventing marine organisms, such as shells and alga,from being attached on ship bodies to grow; meanwhile, the salt spray resistance performance of the fluorocarbon coating is improved; carbon nanotubes are doped so that the siphon action generated bycracks can be enhanced; the capsule core in the microcapsule is slowly released so that the cracks of a coating layer are completely repaired at a relatively rapid speed and the self-repairing fluorocarbon coating has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of coating preparation, in particular to a preparation method of a self-repairing fluorocarbon coating for ships. Background technique [0002] Now our country is in a period of rapid urbanization and industrialization, with a total construction volume of about 2 billion square meters per year. With the development of real estate and architectural decoration industry, the building decoration material industry has also developed rapidly, especially the use of exterior wall paint has increased year by year, and the use of fluorocarbon paint has also increased year by year. [0003] Fluorocarbon coatings are film-forming substances based on fluorine-containing copolymer resins or fluoroolefin copolymers, which are processed, modified and ground. They are also called fluorocarbon paints, fluorine coatings, and fluororesin coatings. Among all kinds of coatings, fluororesin coatings have particularly superior pro...

Claims

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Application Information

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IPC IPC(8): C09D127/16C09D163/00C09D127/12C09D161/24C09D7/61C09D7/65B01J13/14
CPCC09D127/16B01J13/14C08K2003/2241C08K2003/387C08K2201/011C08L63/00C08L27/12C08L61/24C08K13/04C08K7/24C08K3/38C08K3/22
Inventor 谭春容何少雄张建初
Owner 常州万博金属构件厂
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