Preparation and application of a copper-zinc acrylate composite self-polishing antifouling resin

A technology of antifouling resin and copper acrylate, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problems of difficult formation of high relative molecular weight, unsatisfactory antifouling effect, slow hydrolysis rate, etc. problem, to achieve excellent antifouling effect, complete dehydration and complete reaction

Active Publication Date: 2016-08-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that there are also side reactions, and it is difficult to form zinc acrylic acid resin with high relative molecular weight, because zinc (copper) has played a certain polymerization inhibitory effect on the polymerization of acrylic acid, and only low zinc (copper) content can be obtained. Acrylic acid zinc (copper) resin, its hydrolysis rate is relatively slow, and the antifouling effect is not ideal

Method used

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  • Preparation and application of a copper-zinc acrylate composite self-polishing antifouling resin
  • Preparation and application of a copper-zinc acrylate composite self-polishing antifouling resin
  • Preparation and application of a copper-zinc acrylate composite self-polishing antifouling resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Synthesis of No. 1 Copper-Zinc Polyacrylate Resin

[0035] raw material

[0036] Acrylic acid prepolymer 50g, acrylic acid content is 5% (weight part), mass ratio is the mixed solution 20g of dimethylbenzene and n-butanol of 4:1, basic copper zinc benzoate compound (basic zinc benzoate and Basic copper benzoate is mixed according to the molar ratio of 1:1). Adopt the mode of basic copper-zinc benzoate compound feeding three times, according to equimolar charging ratio (acrylic acid and basic copper-zinc benzoate compound equimolar reaction), add basic copper-zinc benzoate total mass for the first time 1 / 2, react at 80°C for half an hour, add 1 / 4 of the total mass for the second time, react at 80°C for 1 hour, add 1 / 4 of the total mass for the third time, react at 90°C for 1 hour, heat up to 125°C for dehydration, A light blue transparent acrylic copper zinc resin was obtained.

Embodiment 2

[0038] Synthesis of No. 2 Copper-Zinc Polyacrylate Resin

[0039] raw material

[0040] Acrylic acid prepolymer 50g, acrylic acid content is 7% (weight part), mass ratio is the mixed solution 25g of xylene and butyl acetate of 4:1, basic copper zinc benzoate compound (basic zinc benzoate and Basic copper benzoate is mixed according to the molar ratio of 1:1). Adopt the mode of basic copper-zinc benzoate compound feeding three times, according to equimolar charging ratio (acrylic acid and basic copper-zinc benzoate compound equimolar reaction), add basic copper-zinc benzoate total mass for the first time 1 / 2, react at 80°C for half an hour, add 1 / 4 of the total mass for the second time, react at 80°C for 1 hour, add 1 / 4 of the total mass for the third time, react at 90°C for 1 hour, heat up to 125°C for dehydration, A light blue transparent acrylic copper zinc resin was obtained.

Embodiment 3

[0042] raw material

[0043] Acrylic acid prepolymer 50g, acrylic acid content is 5% (weight part), mass ratio is the mixed solution 20g of dimethylbenzene and n-butanol of 4:1, basic copper zinc benzoate compound (basic zinc benzoate and Basic copper benzoate is mixed according to the molar ratio of 1:2), adopts the mode of feeding three times of basic copper-zinc benzoate complex, according to equimolar feed ratio (acrylic acid and basic benzoic acid copper-zinc complex equimolar reaction), the first Add 1 / 2 of the total mass of the basic copper-zinc benzoate complex once, react at 80 degrees for half an hour, add 1 / 4 of the total mass for the second time, react at 80 degrees for 1 hour, and add 1 / 4 of the total mass for the third time 4. React at 90°C for 1 hour, heat up to 125°C for dehydration, and obtain light blue transparent acrylic copper-zinc resin.

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Abstract

The invention discloses copper and zinc acrylate compound self-polishing anti-pollution resin, the number-average molecular weight of which is 10000-25000 and the molecular weight distribution of which is 1.1-2.5. The resin has a synergistic effect and is free of cracks and hard to peel off, and the matrix resin as an anti-pollution coating has a good self-polishing performance and storage stability. The anti-pollution coating prepared from the resin has the advantages of being long in anti-pollution period, excellent in anti-pollution performance, excellent drag reduction performance, marine environmental-friendly, easy to construct and the like and can satisfy the requirement of underwater facilities on the anti-pollution coating. The invention further discloses a method for preparing the resin and a coating comprising the resin.

Description

technical field [0001] The invention relates to the field of antifouling coatings. More specifically, it relates to a copper-zinc acrylate composite self-polishing antifouling resin and its preparation and application. Background technique [0002] Marine biofouling will increase the weight of the hull, increase navigation resistance, reduce speed, increase fuel consumption, and even cause surface corrosion, which will significantly increase the maintenance workload and bring huge economic losses. Since ancient times, humans have taken various measures to prevent marine organisms from adhering. After continuous attempts, the application of marine antifouling coatings has become the most effective, convenient, economical and feasible method to solve marine biofouling. [0003] Self-polishing technology emerged in the mid-1970s. In the past few decades, antifouling coatings containing organotins have been widely used, but the released organotin poisons have caused teratogeni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/14C08F220/46C08F212/08C08F218/08C08F220/06C08F8/42C09D5/16C09D133/08C09D133/12C09D133/10C09D133/20C09D125/14C09D131/04C09D7/12
Inventor 王凤奇杨辉李樾
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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