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Non-toxic long-acting low-surface-energy antifouling resin and preparation method and application thereof

An antifouling resin and low surface energy technology, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the difficulty of uniform dispersion of nanoparticles, insufficient adhesion between silicone resin and primer paint, Problems such as poor dispersion stability, to achieve good stability, easy to break the effect of hydrolysis

Active Publication Date: 2014-12-24
山东中科纳米科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a non-toxic long-acting low surface energy anti-fouling resin and its preparation method and application, to solve the problem of insufficient adhesion between the organic silicon resin and the bottom paint in the prior art, and the difficulty of evenly dispersing the original ecological nanoparticles. Moreover, the stability of the dispersion is not good and other problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. Pretreatment of Nanoparticles

[0036] In terms of parts by mass, pour 10 parts of nano-silica and 60 parts of ethanol into the reaction kettle, and after stirring evenly, start to add 30 parts of dimethyldiethoxysilane dropwise, and the dropping time is controlled at 20-30 minutes , to form a mixed solution with nanoparticles as the core and organosilicon coupling agent as the shell, then pour it into a sand mill and add zirconium beads or glass beads for grinding, and finally form nanoparticles coated with organosilicon coupling agent Nanopulp.

[0037] 2. Preparation of Nanoparticle Silicone Oligomers

[0038] Add the above solution into the reaction kettle and start stirring. And add dropwise a mixed liquid consisting of 3 parts of deionized water and 0.4 parts of hydrochloric acid (concentration 37wt%) into the reactor, and the dropping time is controlled at 20-30 minutes. After the dropping is completed, continue to stir for 20 minutes, and then heat up to ref...

Embodiment 2

[0042] 1. Pretreatment of Nanoparticles

[0043] In terms of parts by mass, pour 30 parts of nano-silica and 50 parts of ethanol into the reaction kettle, after stirring evenly, start to add 30 parts of dimethyldiethoxysilane dropwise, and the dropping time is controlled at 20-30 minutes , to form a mixed solution with nanoparticles as the core and organosilicon coupling agent as the shell, then pour it into a sand mill and add zirconium beads or glass beads for grinding, and finally form nanoparticles coated with organosilicon coupling agent Nanopulp.

[0044] 2. Preparation of Nanoparticle Silicone Oligomers

[0045] Add the above solution into the reaction kettle and start stirring. And add dropwise a mixed liquid consisting of 3 parts of deionized water and 0.4 parts of hydrochloric acid (concentration 37wt%) into the reactor, and the dropping time is controlled at 20-30 minutes. After the dropping is completed, continue to stir for 20 minutes, and then heat up to reflu...

Embodiment 3

[0049] 1. Pretreatment of Nanoparticles

[0050] In terms of parts by mass, pour 10 parts of nano-silica and 60 parts of ethanol into the reaction kettle, and after stirring evenly, start to add 30 parts of dimethyldiethoxysilane dropwise, and the dropping time is controlled at 20-30 minutes , to form a mixed solution with nanoparticles as the core and organosilicon coupling agent as the shell, then pour it into a sand mill and add zirconium beads or glass beads for grinding, and finally form nanoparticles coated with organosilicon coupling agent Nanopulp.

[0051] 2. Preparation of Nanoparticle Silicone Oligomers

[0052] Add the above solution into the reaction kettle and start stirring. Add dropwise a mixed liquid consisting of 6 parts of deionized water and 0.8 parts of hydrochloric acid (concentration 37wt%) into the reactor, and the dropping time is controlled at 20-30 minutes. After the dropping is completed, continue to stir for 20 minutes, and then heat up to reflu...

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Abstract

The invention relates to the field of antifouling paint, in particular relates to a non-toxic long-acting low-surface-energy antifouling resin and a preparation method and application thereof, and in particular relates to a nano particle organic modified acrylic resin which is mainly used for antifouling of ships. The resin is non-hazardous to marine organisms, and integrates properties of self-cleaning, low surface energy, hydrolysis pollution prevention and the like. The resin comprises the following ingredients in parts by mass: 10-30 parts of nano particles, 50-100 parts of ethanol, 10-50 parts of organic silicon coupling agents, 2-9 parts of water, 0.1-1.0 part of hydrochloric acid, 30-60 parts of acrylic acid monomer, 0.01-1.0 part of initiator, and 20-100 parts of organic solvent. Through the hydrolysis of the organic silicon coupling agent, the nano particles are solidly combined with the acrylic acid monomer so as to form a structure that the nano particles are used as a nuclear and the organic silicon modified acrylic resin is used as a shell. The antifouling resin has the properties of no toxicity, low surface energy and good bottom paint adhesion force, and is provided with hydrolysis groups.

Description

technical field [0001] The invention relates to the field of antifouling coatings, in particular to a novel non-toxic, long-acting, low-surface-energy antifouling resin and its preparation method and application, in particular to nanoparticle organosilicon-modified acrylic resin, which is mainly used for antifouling of ships. The resin is non-toxic to marine life and combines self-cleaning, low surface energy and hydrolytic anti-fouling properties. Background technique [0002] Traditional anti-fouling coatings use organic tin, mercuric oxide, DDT and other poisonous materials, which are highly toxic and seriously pollute marine organisms and the ecological environment. They directly affect human health through the food chain, are banned from use, and have been basically withdrawn. Antifouling Coatings Market. [0003] At present, tin-free self-polishing coatings are successfully applied, which are made of hydrophilic acrylic polymer self-dissolving resin, combined with low...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F292/00C09D175/04C09D5/16
Inventor 邱再明武琳琳张善志钟广义于涛郝庆辉王恩冰
Owner 山东中科纳米科技有限公司
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