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Fluoroalkyl modified acrylate-containing low-surface energy, drag reduction and fouling prevention coating and preparation method thereof

An acrylate and low surface energy technology, which is applied in the field of acrylate low surface energy drag-reducing anti-fouling coatings and its preparation, can solve the problems of poor adhesion of anti-fouling coatings, rapid failure of anti-fouling effects, and large underwater frictional resistance. , to achieve the effect of smooth surface, convenient construction and improved bonding ability

Inactive Publication Date: 2016-05-04
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the existing low surface energy antifouling paint has poor adhesion, short antifouling cycle, fast antifouling effect failure, and large underwater frictional resistance.

Method used

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  • Fluoroalkyl modified acrylate-containing low-surface energy, drag reduction and fouling prevention coating and preparation method thereof
  • Fluoroalkyl modified acrylate-containing low-surface energy, drag reduction and fouling prevention coating and preparation method thereof
  • Fluoroalkyl modified acrylate-containing low-surface energy, drag reduction and fouling prevention coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Add the above-mentioned fluoroalkyl-modified acrylic low surface energy resin I, rosin, and organic solvent into the dispersion tank, fully disperse for 10 minutes, add additives, composite antifouling agents, pigments and fillers in turn, stir and disperse for 10 minutes, and then ball mill for 6 hours , After checking the viscosity and fineness, the A-type component is obtained.

[0052] Class A group distribution ratio is as follows:

[0053] Fluoroalkyl modified acrylic resin I: 40 grams;

[0054] Rosin: 5 grams;

[0055] Composite antifouling agent: 20 grams of cuprous oxide, 2 grams of copper pyrithione;

[0056] Pigments and fillers: 6 grams of iron oxide red, 4.5 grams of zinc oxide, 1.5 grams of precipitated barium sulfate;

[0057] Coating additives: BYK1630.8g, BYK0520.4g, BYK3000.4g, organic bentonite 1.6g;

[0058] Mixed solvent: 8 grams of xylene, 8 grams of butyl acetate.

[0059] After the A-type component and Bayer N75 curing agent are fully mixed ...

Embodiment 2

[0061] The antifouling paint preparation process of this example is the same as that of Example 1.

[0062] Class A group distribution ratio is as follows:

[0063] Fluoroalkyl modified acrylic resin II: 40 grams;

[0064] Rosin: 5 grams;

[0065] Composite antifouling agent: 20 grams of cuprous oxide, 2 grams of copper pyrithione;

[0066] Pigments and fillers: 6 grams of iron oxide red, 4.5 grams of zinc oxide, 1.5 grams of precipitated barium sulfate;

[0067] Coating additives: BYK1630.8g, BYK0520.4g, BYK3000.4g, organic bentonite 1.6g;

[0068] Mixed solvent: 8 grams of xylene, 8 grams of butyl acetate.

Embodiment 3

[0070] The antifouling paint preparation process of this example is the same as that of Example 1.

[0071] Class A group distribution ratio is as follows:

[0072] Fluoroalkyl modified acrylic resin III: 40 grams;

[0073] Rosin: 5 grams;

[0074] Composite antifouling agent: 20 grams of cuprous oxide, 2 grams of copper pyrithione;

[0075] Pigments and fillers: 6 grams of iron oxide red, 4.5 grams of zinc oxide, 1.5 grams of precipitated barium sulfate;

[0076] Coating additives: BYK1630.8g, BYK0520.4g, BYK3000.4g, organic bentonite 1.6g;

[0077] Mixed solvent: 8 grams of xylene, 8 grams of butyl acetate.

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Abstract

The invention discloses a fluoroalkyl modified acrylate-containing low-surface energy, drag reduction and fouling prevention coating. The coating comprises a component A and a component B, wherein the component A comprises, by mass, 20-50% of fluoroalkyl modified acrylic resin, 2-15% of rosin, 15-25% of a composite antifouling agent, 5-15% of a pigment and filler, 1-5% of an assistant and 10-20% of an organic solvent; the component B is an N75 curing agent produced in the Bayer Company in Germany, and a mass ratio of the component A to the component B is 5:1-10:1; the structural formula of the fluoroalkyl modified acrylic resin is shown in the description; and in the structural formula, R1 is H or CH3, R2 represents a C1-4 alkyl group, and x, m, n and p are integers in a range of 1-9 respectively. The invention also discloses a preparation method of the coating. A film formed by using the coating has good bonding ability with a substrate, keeps lasting brightness, and also has the characteristics of excellent static / dynamic fouling prevention, low surface energy and drag reduction.

Description

technical field [0001] The invention belongs to the field of marine anti-fouling and drag-reducing coatings, and relates to a fluorine-containing alkyl-modified acrylate low-surface-energy drag-reducing anti-fouling coating and a preparation method thereof. The coating obtained from the coating has good bonding ability with a substrate, Excellent static and dynamic antifouling and hydrophobic drag reduction properties. Background technique [0002] When the ship is moving, the resistance caused by surface friction accounts for about 70-80% of the total resistance. When the ship moves at high speed, the friction resistance accounts for about 40% of the total resistance. Under the same dynamic conditions, the resistance of the underwater vehicle is reduced by 10%, and its speed and range can be increased by 3.57%. Therefore, reducing underwater surface resistance can greatly increase the operating speed and range of the aircraft. On the other hand, solid surfaces soaked in s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D193/04C09D5/16C09D7/12C09D7/00C08F220/14C08F220/18C08F212/08C08F220/28C08F220/36
Inventor 周峰吴杨裴小维胡海媛刘玉鹏杨武芳
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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