Outer layer anti-fouling paint for ship and preparation method thereof

A technology for antifouling coatings and ships, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., to achieve high bactericidal activity, excellent high and low temperature resistance, and improve smoothness

Inactive Publication Date: 2018-09-28
南京中森挤出机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the focus of the antifouling coatings in the prior art is how to improve the bactericidal performance of the coatings. The above-mentioned coatings use the synergistic cooperation of adding broad-spectrum antifouling agents and auxiliary antifouling agents, so as to sterilize a wide range of bacteria, and relatively Little research on how to reduce marine biofouling related paints

Method used

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  • Outer layer anti-fouling paint for ship and preparation method thereof
  • Outer layer anti-fouling paint for ship and preparation method thereof
  • Outer layer anti-fouling paint for ship and preparation method thereof

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preparation example Construction

[0043] The preparation method of pine wax resin is as follows:

[0044] (1) First, heat the water to a near-boiling state, put in 40-50 parts by weight of paraffin and stir to dissolve the paraffin, wherein the mass ratio of water to paraffin is 1-2:1;

[0045] (2) Then add 50-60 parts of rosin resin, and carry out saponification reaction under stirring at 200-300r / min; (3) Add 1-5 parts of a mixture of turpentine oil and oxalic acid, and increase the speed to 400-500r / min Continue stirring to obtain a uniform mixture;

[0046] (4) The mixed liquid is heated and evaporated, and the heating time is 45-60 minutes.

Embodiment 1

[0048] Prepare polymer composite antifouling masterbatch, the specific steps are: (1) Take 100g of ethylenediamine and 190g of guanidine carbonate, add them into a 500ml three-neck bottle, stir and raise the temperature to 100°C under the protection of nitrogen, and react for 1 hour; (2) Then the temperature was raised to 190° C. for 8 hours; (3) 15 g of maleic anhydride was added, and the reaction was terminated after 15 minutes, and the average number average molecular weight was 2800.

Embodiment 2

[0050] To prepare polymer composite antifouling masterbatch, the specific steps are: (1) Take 100g of hexamethylenediamine and 110g of guanidine nitrate, add them into a 500ml three-neck bottle, stir and raise the temperature to 140°C under the protection of nitrogen, and react for 2 hours; (2) Then, the temperature was raised to 210° C. for 6 hours; (3) 10 g of acrylic acid was added, and the reaction was terminated after 15 minutes, and the average number average molecular weight was 2900.

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Abstract

The invention discloses an outer layer anti-fouling paint for a ship and a preparation method thereof. The method is applied to the field of anti-fouling paints, and solves the technical problem of easily adhering of marine creatures on the surface of the ship in the prior art. The anti-fouling paint is characterized by comprising, by weight, 30-50 parts of acrylic ester, 10-18 parts of rosin waxresin, 5-8 parts of polymer composite anti-fouling masterbatch, 1-5 parts of white carbon black, 10-20 parts of organic modified bentonite, 5-10 parts of pigment, 1-4 parts of defoamer and 15-25 partsof composite solvent, wherein the polymer composite anti-fouling masterbatch is the polymer material synthesized by polyamine and guanidine salt; according to the anti-fouling paint, the smoothness of the surface of the paint is improved, permanent communities of the marine creatures cannot be formed on the surface of the paint, the fouling and sedimentation of the marine creatures can be effectively avoided, and replacement products with excellent anti-fouling performance can be prepared.

Description

technical field [0001] The invention relates to an antifouling coating, in particular to an antifouling coating for an outer layer of a ship and a preparation method thereof. Background technique [0002] There are more than 18,000 species of appendages and 600 species of appendages in the sea areas of the world. When marine organisms adhere to the bottom of the ship, the resistance increases, the speed decreases, the fuel consumption increases, and the mechanical wear increases; the adhesion of marine organisms also destroys the paint film and accelerates the corrosion of the steel plate, which not only increases the number and time of ship maintenance, Moreover, the sailing rate of the ship is reduced; for the ship, sea creatures greatly affect the speed of the ship. If the sea creatures are attached to the field cover, the detection performance of the interference sound will weaken the combat effectiveness of the warship. [0003] So far, coating ships with antifouling c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02C09D4/06C09D5/16C09D7/62
CPCC09D4/06C09D5/1625C09D5/1687
Inventor 王德文
Owner 南京中森挤出机械有限公司
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