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Organic silicon modified epoxy coating with anticorrosion and transition connection functions and preparation method thereof

A technology of transition connection and epoxy coating, applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problem that the adhesion behavior of anti-corrosion primers is difficult to meet practical applications, achieve excellent interface bonding, and enhance crosslinking Density, the effect of solving poor adhesion

Active Publication Date: 2020-08-07
MARINE CHEM RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the intermediate transition layer of fouling release antifouling paint mostly adopts the same matrix resin system as antifouling paint, which can ensure good adhesion with antifouling paint, but the adhesion behavior with anticorrosive primer is difficult to meet the needs of practical applications

Method used

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  • Organic silicon modified epoxy coating with anticorrosion and transition connection functions and preparation method thereof
  • Organic silicon modified epoxy coating with anticorrosion and transition connection functions and preparation method thereof
  • Organic silicon modified epoxy coating with anticorrosion and transition connection functions and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: in the 500mL four-neck flask that stirring device, condensing device, thermometer are housed, add the mixed solvent of 60.5g xylene / n-butanol (the mass ratio of xylene and n-butanol is 1:1), Nitrogen was passed through the reaction system, the temperature was raised to 90°C, and 55g of bisphenol A epoxy vinyl ester resin, 25.5g of 3-isobutallyltrimethoxysilane and 0.7g of azobisisobutyronitrile were weighed and mixed uniformly, and placed in Evenly added dropwise to the reaction system within 2 hours, after the dropwise addition was completed, after 1 hour of heat preservation, continue to dropwise add a mixed solution of 0.1g of azobisisobutyronitrile and 4.5g of xylene within 0.5h, keep heat for 2h, cool down and discharge, and obtain Pale yellow silicone modified epoxy vinyl ester resin.

Embodiment 2

[0018] Example 2: In a 500mL four-neck flask equipped with a stirring device, a condensing device, and a thermometer, add a mixture of 50.5g xylene / methyl isobutyl ketone (the mass ratio of xylene to butyl acetate is 1:1) Solvent, blow nitrogen into the reaction system, heat up to 110°C, and weigh 65g of bisphenol F epoxy vinyl ester resin, 25.5g of vinyltrimethoxysilane and 0.8g of tert-butyl peroxy-2-ethylhexanoate Mix evenly, and evenly add dropwise to the reaction system within 2 hours. After the dropwise addition is completed, keep warm for 1 hour, continue to drop the mixed solution of 0.1g azobisisobutyronitrile and 4.5g xylene within 0.5h, keep warm for 2h, A light yellow silicone-modified epoxy vinyl ester resin was obtained.

Embodiment 3

[0019] Example 3: In a 500mL four-neck flask equipped with a stirring device, a condensing device, and a thermometer, add 50.5g xylene / methyl isobutyl ketone (the mass ratio of xylene to methyl isobutyl ketone is 1: 1) Mixed solvent, blow nitrogen to the reaction system, heat up to 90°C, weigh 55g of novolac epoxy vinyl ester resin, 24.5g of 3-propenylpropyltrimethoxysilane and 0.7g of azobisisovaleronitrile and mix evenly , and evenly added dropwise to the reaction system within 2 hours. After the dropwise addition was completed and kept warm for 1 hour, continue to add a mixed solution of 0.1g azobisisovaleronitrile and 4.5g xylene dropwise within 0.5h, keep warm for 2 hours, and obtain light Yellow silicone modified epoxy vinyl ester resin.

[0020] The preparation method of silicone modified epoxy coating is shown in Table 1.

[0021] Table 1

[0022]

[0023]

[0024] Preparation of silicone-modified epoxy coating with both anti-corrosion and transition connection...

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Abstract

The invention provides a preparation method of an organic silicon modified epoxy coating with anticorrosion and transition connection functions. The organic silicon modified epoxy coating is used as an intermediate connection layer of fouling release type antifouling paint. The organic silicon modified epoxy coating adopts organic silicon modified epoxy vinyl ester resin and epoxy resin as matrixresin, so that good compatibility with anti-corrosion primer is realized; meanwhile, an organosiloxane oligomer is compounded, wherein amino in the organosiloxane oligomer and an epoxy group in the matrix resin are subjected to a ring-opening reaction; the basic network structure of the intermediate connecting paint is constructed, and siloxy in the organic silicon modified epoxy vinyl ester resincan be subjected to condensation reaction with matrix organic silicon resin in the fouling release type antifouling paint, so that the adhesion strength of the intermediate connecting layer and the fouling release type antifouling paint is improved.

Description

technical field [0001] The invention relates to a silicone-modified epoxy coating with both anti-corrosion and transition connection functions, which can be used as an intermediate connection layer of fouling-releasing antifouling coatings, and belongs to the technical field of chemical materials. Background technique [0002] Fouling-releasing antifouling coatings are one of the development directions of environmentally friendly antifouling coatings in the future. Their mechanism of action mainly depends on the physical properties of the coating surface, and there is no problem of release and loss of toxic materials. , without any pollution to the marine ecological environment. Fouling-release antifouling coatings generally have low surface energy, which makes it difficult or weak for marine fouling organisms to adhere. Offshore engineering equipment and marine facilities are coated with fouling-releasing antifouling coatings to resist fouling organisms. At the same time, ...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D163/00C09D5/08C09D7/65C08G59/50
CPCC08G59/504C08L2205/035C08L2205/04C09D5/08C09D151/08C09D163/00C09D7/65C08L63/00C08L83/04C08K5/544
Inventor 丛巍巍桂泰江于雪艳赵乐国耀东张凯
Owner MARINE CHEM RES INST
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