Environment-friendly fluorine/silicon-containing heavy anticorrosive epoxy resin paint and preparation method thereof

An epoxy resin coating, an environment-friendly technology, applied in epoxy resin coatings, anti-corrosion coatings, coatings, etc., can solve the problems of lack of adsorption force and easy shedding of coatings, and achieve good resistance to chloride ion penetration, not easy The effect of shedding and improving amphiphobicity

Active Publication Date: 2013-12-18
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of coating has good weather resistance, but the coating also lacks adsorption and is easy to fall off

Method used

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  • Environment-friendly fluorine/silicon-containing heavy anticorrosive epoxy resin paint and preparation method thereof
  • Environment-friendly fluorine/silicon-containing heavy anticorrosive epoxy resin paint and preparation method thereof
  • Environment-friendly fluorine/silicon-containing heavy anticorrosive epoxy resin paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of fluorine-containing epoxy resin:

[0032] (1) Add 35g of 1,1-bis(4-hydroxyphenyl)-1-(3-trifluoromethylphenyl)-2,2,2-trifluoroethane and 26g of epichlorohydrin with Stir the solution in a three-necked flask with a stirring rod and a temperature control device, and raise the temperature to 65°C.

[0033] (2) Take 7g of NaOH and 15ml of deionized water to make lye, add it to the reaction vessel within 1.5 hours, and keep the temperature at 65°C.

[0034] (3) After adding the lye dropwise, the reactant was refluxed at 70°C for 1.5 hours, and the system turned milky yellow.

[0035] (4) Add 27ml of deionized water and 54ml of toluene, stir evenly, let stand to separate the liquid, remove the water layer, repeat several operations to remove the water layer to separate the organic phase, and distill off the solvent toluene and unreacted epoxy under reduced pressure Chloropropane, a light yellow viscous resin.

[0036] Preparation of fluorine-containing silicon ...

Embodiment 2

[0039] (1) Add 30g of 1,1-bis(4-hydroxyphenyl)-1-phenyl-2,2,2-trifluoroethane and 28g of epichlorohydrin into the three-port with stirring bar and temperature control device In the flask, the solution was stirred and the temperature was raised to 65°C.

[0040] (2) Take 6g NaOH and 17ml deionized water to make lye, add it into the reaction vessel within 1.5 hours, and keep the temperature at 65°C.

[0041] (3) After adding the lye dropwise, the reactant was refluxed at 70°C for 1.5 hours, and the system turned milky yellow.

[0042] (4) Add 27ml of deionized water and 54ml of toluene, stir evenly, let stand to separate the liquid, remove the water layer, repeat several operations to remove the water layer to separate the organic phase, and distill off the solvent toluene and unreacted epoxy under reduced pressure Chloropropane, a light yellow viscous resin.

[0043] Preparation of fluorosilicone heavy-duty epoxy resin coating:

[0044] 4,4'-methylene bis(2,6-diethylaniline)...

Embodiment 3

[0046] (1) Add 30g (3-trifluoromethylbenzene) hydroquinone and 32g epichlorohydrin into a three-necked flask equipped with a stirring rod and a temperature control device, stir the solution, and raise the temperature to 65°C.

[0047] (2) Take 8g of NaOH and 17ml of deionized water to make lye, add it to the reaction vessel within 1.5 hours, and keep the temperature at 65°C.

[0048] (3) After adding the lye dropwise, the reactant was refluxed at 70°C for 1.5 hours, and the system turned milky yellow.

[0049] (4) Add 27ml of deionized water and 54ml of toluene, stir evenly, let stand to separate the liquid, remove the water layer, repeat several operations to remove the water layer to separate the organic phase, and distill off the solvent toluene and unreacted epoxy under reduced pressure Chloropropane, a light yellow viscous resin.

[0050] Preparation of fluorosilicone heavy-duty epoxy resin coating:

[0051] 35g of 4,4'-methylenebis(2,6-diethylaniline), 2g of POSS, 1g o...

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Abstract

The invention relates to an anticorrosive paint and a preparation method thereof, particularly an environment-friendly fluorine/silicon-containing heavy anticorrosive epoxy resin paint and a preparation method thereof. The paint is composed of 30-70g of fluorine-containing epoxy resin, 10-40g of curing agent, 0.1-5g of POSS (polyhedral oligomeric silsesquioxane), 0.5-5g of silane coupling agent, 10-30g of reactive diluent, 0.5-3g of dispersant and 0.1-3g of photostabilizer. The paint provided by the invention has the advantages of high fluorine content, favorable adhesion to the substrate, simple construction technique, excellent corrosion resistance and excellent weather resistance, and is especially suitable for an anticorrosive coating under harsh conditions. The paint uses the reactive diluent capable of participating in curing reaction as the solvent instead of the organic volatile solvent component, and thus, has an environment-friendly function, thereby having great popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion coatings, and relates to a fluorine-containing silicon epoxy resin coating and a preparation method thereof, in particular to an environment-friendly fluorine-containing silicon heavy-duty anti-corrosion epoxy resin coating and a preparation method thereof. technical background [0002] With the development of modern industry, a number of emerging industrial fields have emerged and many modern projects have been constructed, such as the rapid development of my country's offshore oil industry, and there are more and more fixed steel structures at sea. At present, my country has nearly 100 oil platforms distributed in the Bohai Sea, East China Sea and South China Sea. It is predicted that my country's offshore oil resources account for about 1 / 4 of the country's total oil reserves, and it can be expected that more offshore oil platforms will be built in the next few years. Most of these plat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/06C09D4/02C09D163/00C09D7/12C09D5/08C08G59/06C08G59/04C09D7/45C09D7/48
CPCC09D4/06C08G59/04C09D163/00C09D5/082C09D7/48C09D7/45C08L83/04
Inventor 戴李宗毛杰陈凌南曾碧榕许一婷常迎程玲罗伟昂高辉林康斌
Owner XIAMEN UNIV
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