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Antifouling biological adhesive agent and antifouling biological adhesive coating

A bio-fouling and anti-fouling technology, applied in anti-fouling/underwater coatings, anti-corrosion coatings, paints containing biocides, etc., can solve marine concrete structure fouling, economic loss, marine concrete structure safety and durability hazards and other problems, to achieve good biocompatibility, enhance antibacterial and antifouling, and improve antibacterial and anti-biological fouling performance.

Active Publication Date: 2015-11-18
广西经正科技开发有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to long-term immersion, the attachment of various organisms in the ocean, such as seaweed, shellfish, molluscs, etc., causes deep damage from surface damage, resulting in serious fouling of marine concrete structures, which not only causes economic losses, but also damages marine concrete. Severe hazards to structural safety and durability

Method used

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  • Antifouling biological adhesive agent and antifouling biological adhesive coating
  • Antifouling biological adhesive agent and antifouling biological adhesive coating
  • Antifouling biological adhesive agent and antifouling biological adhesive coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Step1. Preparation of polyaspartic acid ester, code PAE-a

[0054] The amino-terminated polyether JeffamineD-2000 and diethyl maleate are in the ratio n(—NH 2 ): n(—C=C—)=1:1 metering. Add JeffamineD-2000 into the reaction kettle equipped with agitator and heating temperature control device, pass nitrogen gas and raise the temperature to 40°C, add diethyl maleate dropwise at a rate of one drop every two seconds, after the addition is completed, nitrogen protection Stir and heat to 80°C, keep warm for 24 hours, cool down and discharge to obtain polyaspartic acid ester.

[0055] Step2. Preparation of component A of polyaspartic ester coating

[0056] The amount of 2,4'-diphenylmethane diisocyanate MDI-50 and polyoxypropylene diol PPG2000 is measured according to NCO%=15% in the prepolymer produced. Add 2,4'-diphenylmethane diisocyanate MDI-50 into a reaction kettle equipped with a stirrer and a heating temperature control device, blow nitrogen gas and raise the tempera...

Embodiment 2

[0076] Step1. Preparation of polyaspartic acid ester, code PAE-b

[0077] The amino-terminated polyether JeffamineT-5000 and diethyl maleate are in the ratio n(—NH 2 ): n(—C=C—)=1:1 metering. Add JeffamineT-5000 into a reaction kettle equipped with a stirrer and a heating temperature control device, pass nitrogen gas and raise the temperature to 40°C, add diethyl maleate dropwise at a rate of one drop every two seconds, after the addition is completed, nitrogen protection Stir and heat to 80°C, keep warm for 24 hours, cool down and discharge to obtain polyaspartic acid ester.

[0078] Step2. Preparation of component A of polyaspartic ester coating

[0079]The amount of 2,4'-diphenylmethane diisocyanate MDI-50 and polyoxypropylene diol PPG2000 is measured according to NCO%=15% in the prepolymer produced. Add 2,4'-diphenylmethane diisocyanate MDI-50 into a reaction kettle equipped with a stirrer and a heating temperature control device, blow nitrogen and raise the temperature...

Embodiment 3

[0099] Step1. Preparation of polyaspartic acid ester, code PAE-c

[0100] The amino-terminated polyether JeffamineT-403 and diethyl maleate are in the ratio n(—NH 2 ): n(—C=C—)=1:1 metering. Add JeffamineT-403 into a reaction kettle equipped with a stirrer and a heating temperature control device, blow nitrogen and raise the temperature to 40°C, add diethyl maleate dropwise at a rate of one drop every two seconds, after the addition is completed, nitrogen protection Stir and heat to 80°C, keep warm for 24 hours, cool down and discharge to obtain polyaspartic acid ester.

[0101] Step2. Preparation of component A of polyaspartic ester coating

[0102] The amount of 2,4'-diphenylmethane diisocyanate MDI-50 and polyoxypropylene diol PPG2000 is measured according to NCO%=15% in the prepolymer produced. Add 2,4'-diphenylmethane diisocyanate MDI-50 into a reaction kettle equipped with a stirrer and a heating temperature control device, blow nitrogen and raise the temperature to 4...

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Abstract

The invention provides an antifouling biological adhesive agent and an antifouling biological adhesive coating. The antifouling biological adhesive agent is organosilicon quaternary ammonium salt surface-modified antibacterial-agent-carried zinc oxide / silicon dioxide hollow microspheres. The adhesive agent comprises organosilicon quaternary ammonium salt, an antibacterial agent and zinc oxide / silicon dioxide hollow microspheres, wherein the mass ratio of the organosilicon quaternary ammonium salt to the antibacterial agent to the zinc oxide / silicon dioxide hollow microspheres is (1-3): (6-50): 5, and the mass ratio of zinc oxide to silicon dioxide in the zinc oxide / silicon dioxide hollow microspheres is 5: (0.1-3). By using a technical scheme in the invention, through organic-inorganic compound synergistic effects, more efficient and more long-term antibacterial and anti-biological adhesive performances are realized, and good biocompatibility, environmental compatibility and use safety are obtained.

Description

technical field [0001] The invention belongs to the technical field of antifouling coatings, in particular to an antifouling biological adhesion agent and an antifouling biological adhesion coating. Background technique [0002] With the acceleration of the utilization of marine space, marine concrete structure projects, such as piers, breakwaters, sea airports, sea lighthouses, submarine tunnels and sea-crossing bridges, are more and more widely used. Due to long-term immersion, the attachment of various organisms in the ocean, such as seaweed, shellfish, molluscs, etc., causes deep damage from surface damage, resulting in serious fouling of marine concrete structures, which not only causes economic losses, but also damages marine concrete. Structural safety and durability pose serious hazards. [0003] Coating technology is the most commonly used effective protection technology. At present, the commonly used protective coatings such as polyurethane coating series, acrylat...

Claims

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Application Information

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IPC IPC(8): C09D5/16C09D175/08C09D175/02C09D5/08C09D7/12
Inventor 黄映恒韦菲覃筱燕李燕廖森
Owner 广西经正科技开发有限责任公司
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