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Silicone-acrylate low surface energy ocean anti-fouling paint and preparation method thereof

A low surface energy, marine antifouling technology, applied in the direction of antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve the problems that the service time is difficult to meet industrial requirements, low surface energy, etc., and achieve antifouling Stable effect, high flexibility, long service life effect

Inactive Publication Date: 2008-08-27
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of coating base material contains both silicon and fluorine in its element composition, has very low surface energy, and has good antifouling effect, but the service time is still difficult to meet the industrial requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1) Mix 0.3 part of methyl silicone oil and 0.6 part of di-n-octyl phthalate at 25°C to prepare a coating additive;

[0022] 2) Mix 10 parts of ternary silicon acrylic block copolymer and 2 parts of benzidine yellow at 25°C to prepare a coating additive; mix 10 parts of ternary silicon acrylic block copolymer with 2 parts of benzidine yellow at °C and mix uniformly to prepare a mixture of base material and pigment;

[0023] 3) Add the coating additive obtained in step 1) dropwise to the mixture of coating base material and pigment obtained in step 2) and mix and stir for 1 hour. During the mixing process, the temperature of the mixture is kept at 25° C., and the stirring speed is controlled at 600 rpm / min. The mixture is ready for use;

[0024] 4) The mixture obtained in step 3) was dissolved in 4 parts of butyl acetate (or tetrahydrofuran) solvent to prepare a mixture, and then stirred at 25° C. for 1 hour, and the stirring speed was controlled at 600 rpm / min;

[0025...

Embodiment 2

[0027] 1) Mix 0.4 part of methyl silicone oil and 0.7 part of di-n-octyl phthalate at 27°C to prepare a coating additive;

[0028] 2) Mix 10 parts of ternary silicon acrylic block copolymer and 2.5 parts of benzidine yellow at 27°C to prepare a mixture of paint base material and pigment;

[0029] 3) Add the coating additive obtained in step 1) dropwise to the mixture of coating base material and pigment obtained in step 2) and mix and stir for 1.5 hours. The temperature during the mixing process is kept at 27°C, and the stirring speed is controlled at 500rpm / min. The mixture is ready for use;

[0030] 4) The mixture obtained in step 3) was dissolved in 5 parts of butyl acetate (or tetrahydrofuran) solvent to prepare a mixture, and then stirred at 27° C. for 1 hour, and the stirring speed was controlled at 500 rpm / min;

[0031] 5) After the mixture obtained in step 4) was allowed to stand for 5 hours, the novel marine antifouling paint involved in the present invention was obt...

Embodiment 3

[0033] 1) Mix 0.55 parts of methyl silicone oil and 0.55 parts of di-n-octyl phthalate at 29°C to prepare a coating additive;

[0034] 2) Mix 10 parts of ternary silicon acrylic block copolymer and 3 parts of benzidine yellow at 29°C to prepare a mixture of paint base material and pigment;

[0035] 3) Add the coating additive obtained in step 1) dropwise to the mixture of coating base material and pigment obtained in step 2) and mix and stir for 1 hour. During the mixing process, the temperature of the mixture is kept at 29° C., and the stirring speed is controlled at 600 rpm / min. The mixture is ready for use;

[0036] 4) The mixture obtained in step 3) was dissolved in 4 parts of butyl acetate (or tetrahydrofuran) solvent to prepare a mixture, and then stirred at 29° C. for 1.5 h, and the stirring speed was controlled at 500 rpm / min;

[0037] 5) After the mixture obtained in step 4) was allowed to stand for 4.5 hours, the novel marine antifouling paint involved in the presen...

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Abstract

The invention relates to a silicone-acrylic low surface energy marine anti-fouling paint and the process for preparation, which relates to a marine anti-fouling paint. The invention provides a silicone-acrylic low surface energy marine anti-fouling paint with lower surface energy which can keep environmental protection property, economy and excellent dust-proof effect, can be permanently used, and utilizes a novel multi-component silicone-acrylic block polymer to be base material and the process for preparation. The silicone-acrylic low surface energy marine anti-fouling paint is remixed by base material, pigments, additives and paint solvent, wherein the base material is dimethyl silicone polymer-b-polymethyl methacryate-b-poly butyl methacrylate ternary silicone-acrylic block copolymer, and the additive is methyl silicone oil and di-n-octyl phthalate. Methyl silicone oil and di-n-octyl phthalate are mixed to get coating auxiliary A, dimethyl silicone polymer-b-polymethyl methacryate-b-poly butyl methacrylate ternary silicone-acrylic block copolymer and pigments are mixed to get a mixture B, the coating auxiliary A is added in the mixture B to get a mixture C, and the mixture C is dissolved in solvent solvent to get a mixture D, and products are got after stewing.

Description

technical field [0001] The invention relates to a marine antifouling coating, in particular to a marine antifouling coating with a lower surface energy prepared by using a novel silicon-acrylic block polymer as a coating base material and compounding it with other components. Coatings and methods for their preparation. Background technique [0002] Ships and marine equipment will face the challenge of marine biofouling, and the losses caused by biofouling caused by numerous types and quantities of marine organisms are difficult to estimate. In order to reduce or even eliminate the biofouling of marine equipment, it is common practice to apply marine antifouling coatings on marine equipment. [0003] So far, according to whether it contains toxic agents and antifouling mechanism, the existing marine antifouling coatings can be divided into two categories: traditional marine antifouling coatings and environment-friendly marine antifouling coatings. The former releases the po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/10C09D5/16
Inventor 罗正鸿何腾云于海江
Owner XIAMEN UNIV
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