Water-based epoxy anticorrosive paint for heat exchanger and preparation method of water-based epoxy anticorrosive paint

A technology of water-based epoxy and anti-corrosion coatings, applied in the field of coatings, can solve the problems of anti-corrosion, anti-scaling, poor anti-scaling ability, difficulty in meeting environmental protection requirements, etc., to improve anti-corrosion performance and mechanical properties, excellent storage stability, Environmentally friendly effect

Active Publication Date: 2021-11-19
CNOOC CHANGZHOU PAINT & COATINGS IND RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the promulgation of relevant domestic environmental protection laws and regulations, the VOCs emission requirements for coatings and coatings are becoming increasingly tight. The solvent-based heat exchanger anti-corr

Method used

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  • Water-based epoxy anticorrosive paint for heat exchanger and preparation method of water-based epoxy anticorrosive paint
  • Water-based epoxy anticorrosive paint for heat exchanger and preparation method of water-based epoxy anticorrosive paint
  • Water-based epoxy anticorrosive paint for heat exchanger and preparation method of water-based epoxy anticorrosive paint

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0028] Example 1

[0029] The water-based epoxy anti-corrosion coating for heat exchangers in this embodiment mainly includes the following raw materials in parts by mass: 240 parts of water-based epoxy emulsion CTW-6062, 12 parts of water-based silicone emulsion MPF ​​52E, 24 parts of amino resin CYMEL 303, 2.4 parts of catalyst CYCAT 4040, 195.1 parts of water-based pigment paste, 1.8 parts of defoamer BYK-019, 0.8 parts of leveling agent RM-2020, 1.2 parts of anti-flash rust agent Roybo 60, 2.4 parts of deionized water.

[0030] Among them, the water-based pigment filler slurry in this embodiment mainly includes the following raw materials in parts by mass: 45.1 parts of deionized water, 10.6 parts of dispersant EFKA-4595, 0.5 parts of wetting agent BYK-331, 9 parts of graphene slurry GRF- GAC-01, 58 parts of titanium dioxide R-902, 14.5 parts of 800-mesh graphite powder, 4.6 parts of 1000-mesh aluminum tripolyphosphate, 4.6 parts of 1000-mesh zinc phosphate, 10 parts of 20...

Example Embodiment

[0034] Example 2

[0035] The water-based epoxy anti-corrosion coating for heat exchangers in this embodiment mainly includes the following raw materials in parts by mass: 240 parts of water-based epoxy emulsion CTW-6062, 20 parts of water-based silicone emulsion MP 50E, 24 parts of amino resin CYMEL 327, 2.4 parts of catalyst CYCAT 4040, 182 parts of water-based pigment paste, 1.8 parts of defoamer BYK-022, 0.8 parts of leveling agent BYK-346, 1.2 parts of anti-flash rust agent Roybo 60, 2.4 parts of deionized water.

[0036] Among them, the water-based pigment filler slurry in this embodiment mainly includes the following raw materials in parts by mass: 45.1 parts of deionized water, 12.6 parts of dispersant BYK-190, 0.5 parts of wetting agent BYK-331, 5 parts of graphene slurry TY08W3000, 51 parts of titanium dioxide R-902, 22 parts of 800-mesh graphite powder, 4.6 parts of 1000-mesh aluminum tripolyphosphate, 2 parts of 1000-mesh zinc phosphate, 10 parts of 2000-mesh mica ...

Example Embodiment

[0040] Example 3

[0041] The water-based epoxy anti-corrosion coating for heat exchangers in this embodiment mainly includes the following raw materials in parts by mass: 240 parts of water-based epoxy emulsion CTW-6062, 12 parts of water-based silicone emulsion MPF ​​52E, 34 parts of amino resin CYMEL 350, 3.6 parts of catalyst BYK-450, 195.1 parts of water-based pigment paste, 1.8 parts of defoamer 901W, 0.8 parts of leveling agent RM-2020, 1.2 parts of anti-flash rust agent Roybo 60, 3 parts of deionized water.

[0042] Among them, the water-based pigment filler slurry in this embodiment mainly includes the following raw materials in parts by mass: 45.1 parts of deionized water, 10.6 parts of dispersant EFKA-4595, 0.5 parts of wetting agent BYK-331, 60 parts of titanium dioxide R-960, 14.5 parts of 800-mesh graphite powder, 4 parts of graphene slurry TY08W3000, 4.6 parts of 1000-mesh aluminum tripolyphosphate, 4.6 parts of 1000-mesh zinc phosphate, 10 parts of 2000-mesh mi...

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Abstract

The invention relates to the technical field of coatings, in particular to a water-based epoxy anticorrosive coating for a heat exchanger and a preparation method of the water-based epoxy anticorrosive coating. The water-based epoxy anticorrosive coating for the heat exchanger is mainly prepared from the following raw materials in parts by mass: 200 to 280 parts of water-based epoxy emulsion, 4 to 24 parts of water-based organic silicon emulsion, 16 to 40 parts of amino resin, 1.2 to 4 parts of catalyst, 130 to 220 parts of water-based pigment and filler slurry, 1.2 to 2.8 parts of defoaming agent, 0.4 to 2 parts of flatting agent, 1.2 to 2.8 parts of flash rust inhibitor and 0 to 12 parts of deionized water. The water-based epoxy anticorrosive coating for the heat exchanger, prepared by the invention, can obviously improve the tolerance to various chemical media in the use process, such as heat acid resistance, heat alkali resistance and the like, and meanwhile, meets the requirements of steam blowing resistance (1.0 MPa, 240 DEG C and 72 hours) of petrochemical engineering devices under extreme application conditions; the water-based epoxy anticorrosive paint for the heat exchanger belongs to a low-VOC environment-friendly product, and completely meets the environment-friendly requirement of the national compulsory standard GB 30981.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based epoxy anti-corrosion coating for heat exchangers and a preparation method thereof. Background technique [0002] A large number of heat exchangers are used in petrochemical production projects such as modern petroleum refining, chemical fertilizers, etc. However, as the quality of global crude oil becomes heavier, inferior, and high-sulfurized, the corrosion of heat exchangers will intensify on the one hand. Even material leakage occurs. On the other hand, a large amount of fouling will occur in the heat exchanger, which will affect the heat exchange efficiency and seriously affect the normal production of the enterprise. [0003] Installing an organic coating on the surface of the heat exchanger is the most effective and convenient corrosion protection measure for the heat exchanger. At present, most anti-corrosion coatings for heat exchangers use solvent-based ep...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D183/04C09D161/20C09D5/08C09D7/20C09D7/61
CPCC09D163/00C09D5/084C09D7/20C09D7/61C08L2205/03C08L2201/08C08K2003/2227C08K2003/327C08K2003/328C08L83/04C08L61/20C08K13/02C08K3/042C08K3/32C08K3/34C08K3/36C08K3/22Y02P20/141
Inventor 谭伟民王亚鑫史立平狄志刚雒新亮王黎何毅刘仲阳
Owner CNOOC CHANGZHOU PAINT & COATINGS IND RES INST
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