Antifouling composite coating film, antifouling substrate, and method for manufacturing antifouling substrate

A technology of anti-fouling and fouling coatings, applied in anti-fouling/underwater coatings, chemical instruments and methods, and devices for coating liquids on surfaces, etc., which can solve the problems of increased surface roughness, reduced ship speed, and increased fuel costs and other problems, to achieve the effect of excellent damage resistance and adhesion, excellent damage resistance and long-term adhesion, and shorten the coating process

Active Publication Date: 2018-07-20
CHUGOKU MARINE PAINTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, in the case of a ship as the base material, the surface roughness of the ship from the waterline to the bottom of the ship increases, resulting in a decrease in the speed of the ship and an increase in fuel costs
Furthermore, when the base material is seawater water supply and drainage pipes of thermal power plants, nuclear power plants, etc., the seawater (cooling water) water supply and drainage pipes are clogged, the flow rate is reduced, and the circulation system may be obstructed.

Method used

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  • Antifouling composite coating film, antifouling substrate, and method for manufacturing antifouling substrate
  • Antifouling composite coating film, antifouling substrate, and method for manufacturing antifouling substrate
  • Antifouling composite coating film, antifouling substrate, and method for manufacturing antifouling substrate

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0215] Add 53 parts by mass xylene in the reaction vessel equipped with stirrer, reflux condenser, thermometer, nitrogen inlet pipe and dropping funnel, while stirring the xylene with stirrer under nitrogen atmosphere, under normal pressure, put the xylene in the reaction vessel Xylene was heated to 85°C. While maintaining the temperature of xylene in the reaction vessel at 85° C., 60 parts by mass of TIPSMA (triisopropylsilyl methacrylate), MEMA (2-methylmethacrylate oxyethyl ester) 20 parts by mass and MMA (methyl methacrylate) 10 parts by mass, BA (butyl acrylate) 10 parts by mass and AMBN (2,2'-azobis(2-methylbutyronitrile)) 1 part by mass of the formed monomer mixture was added to the reaction vessel.

[0216] Next, 0.5 parts by mass of tert-butyl peroxyoctanoate was further added to the reaction vessel, and while the liquid temperature in the reaction vessel was kept at 85° C. under normal pressure, the liquid in the reaction vessel was continuously stirred for two hour...

manufacture example 2～5

[0218] Except using the monomer mixture having the composition shown in Table 1 instead of the monomer mixture used in Production Example 1, polymer solutions (a2), (a3), ( b1) and (b2), various physical properties were measured. The results are shown in Table 1.

[0219] [Table 1]

manufacture example 6

[0222] [Manufacture example 6] Manufacture of gum rosin copper salt

[0223] Into a 1,000ml flask equipped with a thermometer, a reflux condenser, a stirrer, and a thermometer, 400g of a xylene solution (solid content 50%) of Chinese gum rosin (WW rosin, acid value 172), 200g of cuprous oxide, 100g of methanol, and glass beads were added. (diameter 2.5-3.5mm), after stirring at 70-80 degreeC for 8 hours, it kept at the temperature of 50 degreeC for 2 days. Then, after cooling the obtained mixed solution to room temperature (25 degreeC) and filtering, the methanol component was distilled off by concentration under reduced pressure. Thereafter, xylene was added to the obtained concentrate to obtain a xylene solution of gum rosin copper salt (dark blue transparent solution, solid content about 50%). The xylene solution of the obtained gum rosin copper salt had a residual component after heating of 50.8%. This gum rosin copper salt was used in Comparative Example 3 below.

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Abstract

To provide an antifouling composite coating film having excellent long-term antifouling properties, long-term water resistance, damage resistance, and long-term adhesion. This antifouling composite coating film is obtained by laminating an epoxy resin coating film (P) and an antifouling coating film (Q) formed from a hydrolysis-type antifouling coating composition (q), wherein the hydrolysis-typeantifouling coating composition (q) contains: a hydrolyzable copolymer (A) comprising a structural unit (1) derived from triisopropyl silyl methacrylate (i), a structural unit (2) derived from 2-methoxyethyl (meth)acrylate (ii), and a structural unit (3) derived from a polymerizable monomer (iii) that has a polymerizable double bond (excluding triisopropyl silyl methacrylate and 2-methoxyethyl (meth)acrylate); and a rosin and / or a monocarboxylic acid compound (B).

Description

technical field [0001] The present invention relates to an antifouling composite coating film obtained by laminating an antifouling coating film formed of an antifouling coating film composition on an epoxy resin coating film, an antifouling substrate having the antifouling composite coating film, and an antifouling composite coating film. Method of manufacturing a soiled substrate. Background technique [0002] Animals such as oysters, mussels, and barnacles, plants such as seaweed, and various aquatic organisms such as bacteria are likely to adhere to the surface of substrates exposed to water for a long time, such as ships and underwater structures. If these aquatic organisms multiply on the surface of the substrate, various undesirable situations will occur. For example, in the case where the base material is a ship, the surface roughness of the ship from the waterline to the bottom of the ship increases, resulting in a decrease in the speed of the ship and an increase ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B05D5/00B05D7/24B63B59/04C09D5/16C09D7/61C09D143/04C09D163/00
CPCB05D5/00B05D7/24B32B27/30B63B59/04C09D143/04C09D163/00C09D5/1668B05D7/14B05D7/54C09D5/1656C09D5/1687
Inventor 田中秀幸仁井本顺治
Owner CHUGOKU MARINE PAINTS
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