Biologically-bactericidal acrylic resin and novel marine antifouling paint composition prepared from resin

An acrylic resin, bactericidal technology, used in antifouling/underwater coatings, rosin coatings, and biocide-containing paints, etc., can solve problems such as slow accumulation and marine biological hazards, improve adhesion, and simplify the process. Reliable, antifouling effect

Active Publication Date: 2016-09-21
ZHEJIANG MARINE DEV RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, more and more studies have shown that even though copper ions are less toxic, they will

Method used

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  • Biologically-bactericidal acrylic resin and novel marine antifouling paint composition prepared from resin
  • Biologically-bactericidal acrylic resin and novel marine antifouling paint composition prepared from resin
  • Biologically-bactericidal acrylic resin and novel marine antifouling paint composition prepared from resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The synthesis of embodiment 1 biocidal type acrylic resin (PAA)

[0025] The formula of biocidal type acrylic resin is shown in Table 1, in the four-necked flask that stirrer, reflux condenser, constant pressure dropping funnel are equipped with, add 0.2g azobisisobutyronitrile (AIBN), 2.0g dodecanethiol , 200g butyl acetate, mix and heat up to 100°C, then weigh 12g hydroxyethyl acrylate, 37g trichlorophenyl acrylate, 100g butyl acrylate, 51g isobornyl acrylate, 1.7g azobisisobutyronitrile and 1.7g of azobisisovaleronitrile mixed solution was added dropwise at a constant speed for 3 hours with a constant pressure dropping funnel, then 0.1g of azobisisovaleronitrile was added, and the constant temperature reaction was continued for 0.5 hours, then the temperature was raised to 110°C. After continuing to react for 2.5 hours, it was cooled to room temperature to complete the reaction. The reaction scheme is shown in the following formula:

[0026]

[0027] Detected by...

Embodiment 2-3

[0031] The synthesis of embodiment 2-3 biocidal type acrylic resin (PAA)

[0032] The formula of biocidal type acrylic resin is shown in Table 1, and the specific method is the same as in Example 1, wherein the raw material azobisisovaleronitrile is put into two times, and the first addition of azobisisovaleronitrile is 90%- 95%, add the remainder of azobisisovaleronitrile for the second time.

Embodiment 4

[0034] A novel marine antifouling paint composition, the composition of which is shown in Table 2. A new type of marine antifouling paint is prepared by mixing the raw materials. According to different formula systems, it can be divided into short-term, medium-term and long-term antifouling antifouling coatings.

[0035] Table 2 (unit: kg)

[0036]

[0037] Note: The short-term anti-pollution period is 1 year, the medium-term is 2 years, and the long-term is 3-5 years.

[0038] After testing, the novel antifouling paint quality index detection result of the present invention is as shown in table 3:

[0039] table 3

[0040] Test items

results of testing

Testing method

Adhesion / level

≤2

GB / T1720-79

Impact resistance / (kg·cm)

≥45

GB / T1732-93

Flexibility / mm

≤2

GB / T1731-79

Oil resistance (normal temperature, 30d)

No change in coating

GB / T1734-93

[0041] After 2 cycles (2 years) tests of real...

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Abstract

The invention relates to an antifouling paint, particularly a biologically-bactericidal acrylic resin and a novel marine antifouling paint composition prepared from the resin. The biologically-bactericidal acrylic resin is prepared from the following raw materials in percentage by mass: 0.35-0.45% of azodiisobutyronitrile, 0.38-0.48% of azodiisovaleronitrile, 0.49-1.2% of dodecamercaptan, 47-50% of butyl acetate, 2.3-3.6% of 2-hydroxyethyl acrylate, 9-10% of trichlorophenyl acrylate, 24-28% of butyl acrylate and 10-13% of isoborneol acrylate. The formula system is free of copper or tin, and thus, is a novel environment-friendly biologically-bactericidal antifouling paint.

Description

technical field [0001] The invention relates to an antifouling paint, in particular to a biocidal acrylic resin and a novel marine antifouling paint composition prepared by using it. Background technique [0002] In the development of marine economy and shipping industry, the problem of marine fouling and adhesion continues to plague people. Marine fouling will not only increase the resistance of ships sailing and fuel consumption, accelerate the corrosion and degradation of hull materials, but also destroy the ecological balance of waters. British International Paint Company once carried out statistics on the increase of ship's bottom fouling and fuel consumption: if the ship's bottom is fouled by 5%, the fuel consumption will increase by 10%; if the ship's bottom is fouled more than 50%, the fuel consumption will increase by more than 40%. Since the "special weapon" organotin antifouling paint was completely banned on January 1, 2008, a compound paint system with cuprous ...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/28C08F220/22C09D193/04C09D133/08C09D145/00C09D109/06C09D5/14C09D5/16C09D7/12
CPCC08F220/18C08F220/1804C08L2205/035C09D5/14C09D5/1668C09D5/1687C09D133/08C09D193/04C08L33/08C08L45/00C08L9/06C08L77/00C08K13/02C08K2003/2296C08K5/39C08K2003/2272C08K2003/387C08L93/04C08F220/281C08F220/22
Inventor 陆阿定宋伟胡建坤李娟
Owner ZHEJIANG MARINE DEV RES INST
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