Copper-free and environment-friendly self-polishing ocean antifouling paint

A self-polishing, matrix resin technology, applied in anti-fouling/underwater coatings, anti-corrosion coatings, coatings, etc., can solve problems such as entering the food chain, destroying marine ecological balance, and marine environmental hazards, so as to reduce emissions and save heavy metals resources, and the effect of prolonging the antifouling period

Active Publication Date: 2017-05-17
MARINE CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to achieve a good antifouling effect, traditional antifouling coatings have added a large amount of organic tin, DDT, cuprous oxide and other substances harmful to the marine environment, causing serious harm to the marine environment.
For example, organotin will accumulate in fish and shellfish and cause genetic variation, and may enter the food chain; DDT is extremely difficult to degrade in the marine environment, and can accumulate in organisms and penetrate into all links in the food chain, causing genetic mutations; Cuprous oxide will accumulate in large quantities in the harbor, causing a large number of plankton and algae to die, seriously disrupting the ecological balance of the ocean

Method used

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  • Copper-free and environment-friendly self-polishing ocean antifouling paint
  • Copper-free and environment-friendly self-polishing ocean antifouling paint
  • Copper-free and environment-friendly self-polishing ocean antifouling paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1a. Preparation of Acrylic Prepolymer

[0037] Add 25 parts of propylene glycol methyl ether, 65 parts of xylene and 5 parts of ethyl acrylate into a four-necked flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, and stir and heat to 105°C. A mixed liquid consisting of 30 parts of methyl methacrylate, 25 parts of ethyl acrylate, 10 parts of butyl acrylate, 30 parts of acrylic acid, and 2.5 parts of azobisisobutyronitrile was added dropwise from the dropping funnel for 3 hours. After the dropwise addition, keep warm for 0.5 hour, add 0.5 parts of azobisisobutyronitrile and 10 parts of xylene, keep warm for another 2 hours, cool down and discharge to prepare acrylic acid prepolymer.

[0038] 1b. Preparation of matrix resin A-1 with self-polishing properties

[0039] In a three-neck flask equipped with a stirring device, a condenser, and a thermometer, add 300 parts of the acrylic acid prepolymer prepared in the above step 1a, 50.8 p...

Embodiment 2

[0041] 2a. Preparation of methacrylic acid prepolymer

[0042] Add 25 parts of n-butanol, 65 parts of xylene and 5 parts of ethyl acrylate into a four-necked flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, and stir and heat to 105°C. A mixed liquid consisting of 25 parts of methyl methacrylate, 20 parts of ethyl acrylate, 20 parts of butyl acrylate, 30 parts of methacrylic acid, and 2.5 parts of azobisisobutyronitrile was added dropwise from the dropping funnel for 3 hours. After the dropwise addition, keep warm for 0.5 hours, add 0.5 parts of azobisisobutyronitrile and 10 parts of xylene, keep warm for another 2 hours, cool down and discharge to prepare methacrylic acid prepolymer.

[0043] 2b. Preparation of matrix resin A-2 with self-polishing properties

[0044] In a there-necked flask equipped with a stirring device, a condenser, and a thermometer, add 300 parts of methacrylic acid prepolymers prepared in the above-mentioned step...

Embodiment 3

[0046] 3a. Preparation of Acrylic Prepolymer

[0047] In a four-neck flask equipped with a stirring device, a condenser, a dropping funnel, and a thermometer, add 25 parts of propylene glycol methyl ether, 60 parts of xylene and 5 parts of cyclohexyl methacrylate under stirring, and heat to 105°C. From the dropping funnel, add dropwise a mixed liquid consisting of 30 parts of isooctyl acrylate, 25 parts of cyclohexyl methacrylate, 20 parts of methoxyethyl acrylate, 20 parts of acrylic acid, and 2.5 parts of azobisisobutyronitrile. Hours. After the dropwise addition, keep warm for 0.5 hours, add 0.5 parts of azobisisobutyronitrile and 10 parts of xylene, keep warm for another 2 hours, cool down and discharge to prepare acrylic acid prepolymer.

[0048] 3b. Preparation of matrix resin A-3 with self-polishing properties

[0049] In a three-necked flask equipped with a stirring device, a condenser, and a thermometer, add 300 parts of the acrylic acid prepolymer prepared in the a...

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PUM

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Abstract

The invention provides copper-free and environment-friendly self-polishing ocean antifouling paint. The copper-free environment-friendly and self-polishing ocean antifouling paint is prepared from matrix resin A with self-polishing property, an organic antifouling agent B without any copper type antifouling agent, pigment filling C, an auxiliary agent D and a solvent E. The matrix resin A is characterized in that a preparation process comprises two steps: step 1: carrying out free radical copolymerization on acrylic acid or methacrylic acid and an ethenyl unsaturated monomer a1 without metal in a certain amount of solvent at certain temperature under the action of an initiator, so as to prepare an acrylic acid or methacrylic acid pre-polymer; step 2: carrying out refluxing reaction on the pre-polymer prepared by the step 1, saturated organic acid and oxide or hydroxide of zinc or a zinc salt at certain temperature; stopping the reaction until obtained effluent reaches a pre-set value, so as to obtain the matrix resin A.

Description

technical field [0001] The invention relates to a copper-free environmental protection self-polishing marine antifouling coating. The antifouling coating has good self-polishing performance, does not contain any copper antifouling agent, can greatly reduce copper emissions, and save a large amount of heavy metal resources. It has no pollution to the marine environment and is of great significance in protecting the marine environment. Background technique [0002] Anti-fouling paint is a special marine paint that is applied to the bottom of the ship to prevent marine organisms from attaching and fouling, and to keep the bottom of the ship smooth and clean. Its purpose is to reduce ship navigation resistance, save fuel consumption and reduce CO 2 emissions, reduce the carbon footprint of ships, and slow down the global greenhouse effect. Therefore, the application of antifouling coatings is very consistent with the international policy guidelines for energy conservation and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/12C09D133/08C09D133/02C09D133/10C09D5/16C09D5/08C09D7/12C08F220/14C08F220/06C08F220/18C08F220/28C08F220/22C08F8/44
CPCC09D133/02C09D133/08C09D133/10C09D133/12C08F8/44C08F220/06C08F220/14C08F220/18C08K3/346C08K5/3415C08K5/36C08K9/04C08K13/06C09D5/08C09D5/1625C09D5/1668C08F220/1808C08L91/06C08K13/02C08F220/281C08F220/22C08F220/1804C08F220/1802
Inventor 于雪艳王科张华庆陈正涛从巍巍桂泰江
Owner MARINE CHEM RES INST
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