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Anti-corrosion industrial coating and preparation method thereof

A coating and industrial technology, applied in the field of anti-corrosion industrial coatings and their preparation, can solve the problems of decreased mechanical properties of coatings, high viscosity, affecting corrosion resistance and adhesion, etc.

Pending Publication Date: 2022-05-03
GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, pure epoxy resin has a high viscosity and a three-dimensional network structure after curing, resulting in many gaps in it, which will affect its corrosion resistance and adhesion. In the prior art, carbon nitride or nano-titanium dioxide will be added to improve the epoxy resin. Corrosion resistance, but the addition of carbon nitride or nano-titanium dioxide often causes the coating to warp, resulting in a decrease in the mechanical properties of the coating

Method used

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  • Anti-corrosion industrial coating and preparation method thereof
  • Anti-corrosion industrial coating and preparation method thereof
  • Anti-corrosion industrial coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: the preparation of hyperbranched polyethylene-g-polymethyl methacrylate copolymer.

[0036] S1.N 2 Under protection, add 30mL of dichloromethane, pyridine (16mmol), 2-hydroxyethyl acrylate (16mmol), stir evenly, under ice-water bath, add dropwise 2-bromoisobutyryl bromide (2mmol) solution, react at room temperature After 2 hours, filter, spin evaporate, wash with water, dry over anhydrous magnesium sulfate, and decolorize with activated carbon to obtain an oily product;

[0037] S2. Feed ethylene in reaction flask, the pressure of ethylene keeps 1atm, add 25mL methylene dichloride and step S1 and make oily product (10mmol), stir reaction at room temperature, add diimide palladium catalyst (1mmol), stir reaction at room temperature 24 hour, a colorless and transparent product was obtained;

[0038] S3. Methyl methacrylate (1000mmol), colorless and transparent product (1mmol) that step S2 makes, pentamethyldiethylenetriamine (3mmol), 20mL methylene chlorid...

Embodiment 2

[0041] Embodiment 2: the preparation of hyperbranched polyethylene-g-polymethyl methacrylate copolymer.

[0042] S1.N 2 Under protection, add 30mL of dichloromethane, pyridine (20mmol), 2-hydroxyethyl acrylate (20mmol), stir evenly, under ice-water bath, add dropwise 2-bromoisobutyryl bromide (2mmol) solution, react at room temperature After 2 hours, filter, spin evaporate, wash with water, dry over anhydrous magnesium sulfate, and decolorize with activated carbon to obtain an oily product;

[0043] S2. feed ethylene in reaction flask, the pressure of ethylene keeps 1atm, add 25mL methylene dichloride and step S1 and make oily product (15mmol), stir reaction at room temperature, add diimide palladium catalyst (1mmol), stir reaction at room temperature 24 hours, a colorless and transparent product was obtained;

[0044] S3. Methyl methacrylate (1000mmol), colorless and transparent product (1mmol) that step S2 makes, pentamethyldiethylenetriamine (3mmol), 20mL methylene chlori...

Embodiment 3

[0047] Embodiment 3: the preparation of hyperbranched polyethylene-g-polymethyl methacrylate copolymer.

[0048] S1.N 2 Under protection, add 30mL of dichloromethane, pyridine (18mmol), 2-hydroxyethyl acrylate (18mmol), stir evenly, under ice-water bath, add dropwise 2-bromoisobutyryl bromide (2mmol) solution, react at room temperature After 2 hours, filter, spin evaporate, wash with water, dry over anhydrous magnesium sulfate, and decolorize with activated carbon to obtain an oily product;

[0049] S2. Feed ethylene in reaction flask, the pressure of ethylene keeps 1atm, add 25mL methylene dichloride and step S1 and make oily product (12mmol), stir reaction at room temperature, add diimide palladium catalyst (1mmol), stir reaction at room temperature 24 hour, a colorless and transparent product was obtained;

[0050] S3. Methyl methacrylate (1000mmol), colorless and transparent product (1mmol) that step S2 makes, pentamethyldiethylenetriamine (3mmol), 20mL methylene chloride ...

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Abstract

The invention discloses an anti-corrosion industrial coating and a preparation method thereof. The anti-corrosion industrial coating is prepared from the following raw materials in parts by weight: 25 to 40 parts of epoxy resin, 10 to 20 parts of hyperbranched polyethylene-g-polymethyl methacrylate copolymer, 2.5 to 4 parts of carbon nitride and 3 to 5 parts of nano titanium dioxide. The hyperbranched polyethylene-g-polymethyl methacrylate copolymer, the carbon nitride and the nano titanium dioxide are added into the impact high-temperature-resistant extremely-cold industrial coating, so that the corrosion resistance and the adhesive force of the coating are improved, and the influence of addition of the carbon nitride and the nano titanium dioxide on warping and mechanical properties of the coating is reduced.

Description

technical field [0001] The invention belongs to the field of industrial coatings, in particular to an anti-corrosion industrial coating and a preparation method thereof. Background technique [0002] Epoxy resin refers to the general term for a class of polymers containing more than two epoxy groups in the molecule. Due to the chemical activity of the epoxy group, a variety of compounds containing active hydrogen can be used to open the ring, cure and cross-link to form a network structure, so it is a thermosetting resin. Epoxy resin has the advantages of good heat resistance, electrical insulation, physical properties, excellent stability, good viscosity, and low cost. It has become one of the most commonly used basic resins in polymer materials and has been widely used in various fields. [0003] However, pure epoxy resin has a high viscosity and a three-dimensional network structure after curing, resulting in many gaps in it, which will affect its corrosion resistance a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D151/06C09D7/61C09D5/08
CPCC09D163/00C09D7/61C09D5/08C08K2201/011C08K2003/2241C08L51/06C08K3/28C08K3/22
Inventor 周伟建符传杰戴海雄黄理荣周波张旭林蛟
Owner GUANGDONG MAYDOS BUILDING MATERIALS LTD CO
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