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Humidity-sensitive intelligent betaine fluorinated antifouling paint and preparation method thereof

A humidity-sensing, anti-fouling coating technology, applied in the field of coatings, can solve the problem that the effect of underwater coatings is not very ideal

Active Publication Date: 2014-07-16
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although fluorine-containing acrylate compounds have good antifouling function as airborne coatings, they are not very effective as underwater coatings.

Method used

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  • Humidity-sensitive intelligent betaine fluorinated antifouling paint and preparation method thereof
  • Humidity-sensitive intelligent betaine fluorinated antifouling paint and preparation method thereof
  • Humidity-sensitive intelligent betaine fluorinated antifouling paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] Example 1 Add 44 parts of water (parts by weight, the same below) and 0.7 parts of tributyl phosphate as an antifoaming agent into a 500mL beaker, and stir until fully mixed. Then gradually add 100 parts of the above-mentioned betaine fluorine-containing copolymer emulsion, and mix evenly with the offset paper. Finally, add 3 parts of sodium hexametaphosphate as a dispersant and 15 parts of talcum powder as a filler, and stir at high speed for 20 to 30 minutes until homogeneous.

[0036] The betaine-based fluorine-containing paint was coated on the surface of a glass slide, and its performance was measured after drying.

[0037] After 3 weeks of testing, in the environment with the same fouling organisms, the number of fouling organisms on the surface of the betaine-based fluorine-containing coating was significantly less than that on the blank glass (the area was reduced by 95% and thinner fouling biolayer). This fully demonstrates that the betaine-based fluorine-c...

example 2

[0038] Example 2 Add 60 parts of water (parts by weight, the same below) and 0.9 parts of tributyl phosphate as an antifoaming agent into a 500 mL beaker, and stir until fully mixed. Gradually add 100 parts of betaine fluorine-containing copolymer emulsion, and mix evenly with offset paper. Finally, add 6 parts of sodium hexametaphosphate as a dispersant and 20 parts of talcum powder as a filler, and stir at high speed for 20 to 30 minutes until homogeneous.

[0039] The betaine-based fluorine-containing paint was coated on the surface of a glass slide, and its performance was measured after drying.

[0040] After 3 weeks of testing, in the environment with the same fouling organisms, the number of fouling organisms on the surface of the betaine-based fluorine-containing coating was significantly less than that on the blank glass (the area of ​​the fouling organisms was less more than 95% and the fouling biological layer is thinner). This fully demonstrates that the betaine-...

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Abstract

The invention relates to a humidity-sensing betaine-based fluorine-containing intelligent antifouling paint and a preparation method thereof. The main weight components of the coating include: betaine fluorine-containing copolymer 10%-60%; inorganic salt filler 60%-10%; water-based paint defoamer 0.1%-0.5%; dispersant 0.1%-5.0% ; Water 20%-50%. The preparation method is to firstly mix betaine fluorine-containing copolymer solution, defoamer, dispersant and water evenly, and then add inorganic salt filler under stirring to obtain humidity-sensitive betaine fluorine-containing intelligent antifouling coating. The present invention combines the antifouling characteristics of fluorine-containing groups in the air and the antifouling characteristics of betaine groups in water, and prepares a type of intelligent antifouling coating sensitive to humidity. Changes to adjust the distribution of fluorine-containing groups and betaine groups in the coating film, so as to maintain a good antifouling function.

Description

Technical field [0001] The invention involves the field of coating technology, and it specifically involves a type of humidity sensor beet -alkaline -containing intelligent anti -slimming coatings and their preparation methods. Background technique [0002] The ocean attachment is the general name of animals, plants and microorganisms that grows on the surface of all facilities in ships and the ocean for a long time, and the biological pollution damage caused by it has brought huge economic losses to ship maintenance.When marine creatures are attached to the bottom of the ship, a series of complex physical chemical changes will occur with the growth of these dirty creatures, which greatly accelerates the corrosion of the steel plate of the bottom of the ship and reduces the service life of the equipment.At the same time, dirty organisms increase the weight and voyage resistance of the ship, which increases fuel consumption and seriously affects the completion of the task of aeros...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/10C09D7/12C09D5/16C08F220/18C08F220/22C08F220/38C08F220/36
Inventor 徐守萍蒋少鸿蔡智奇文秀芳皮丕辉程江
Owner SOUTH CHINA UNIV OF TECH
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