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Temperature-resistant anti-corrosion color-changing paint and preparation method thereof

A technology of color-changing coatings and color-changing pigments, which is applied in anti-corrosion coatings, polyamide coatings, coatings, etc. Monitoring effect and other issues, to achieve the effect of bright color, strong tinting strength and sensitive color change

Inactive Publication Date: 2019-04-26
CHANGZHOU GUANLONG CHEMIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when domestic equipment is coated with early-warning coatings, the equipment is generally simply degreased and rust-removed, and then the early-warning coatings are directly painted, and the current early-warning coatings mainly consider the color change of the early-warning coatings, but few Pay attention to the temperature resistance and corrosion resistance of early warning coatings
[0004] Therefore, when the equipment is operated at high temperature for a long time, the early warning coating will often appear pulverization, cracking, falling off, etc.; when the equipment is shut down for a long time for maintenance, corrosion by water, oxygen, etc.
These phenomena will affect the monitoring effect of the existing early warning coatings, and then also affect the popularization and application of early warning coatings

Method used

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  • Temperature-resistant anti-corrosion color-changing paint and preparation method thereof
  • Temperature-resistant anti-corrosion color-changing paint and preparation method thereof

Examples

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preparation example Construction

[0057] The invention also discloses a method for preparing a temperature-resistant, anti-corrosion and color-changing coating, which includes the following steps:

[0058] (1) Add part of carboxyl-terminated hyperbranched polyamide resin, dispersant, defoamer, titanium dioxide, anti-rust pigment, hollow microspheres, color-changing pigment and active nano-calcium into deionized water in sequence, and stir evenly to make a mixed slurry ;

[0059] (2) adding the above-mentioned mixed slurry into a grinder and grinding until a uniform slurry with good fluidity is formed;

[0060] (3) Add the remaining carboxyl-terminated hyperbranched polyamide resin, graphene, anti-flash rust additive and substrate wetting agent to the slurry in turn, stir evenly, and adjust to the specified viscosity with a thickener to obtain the product Invented heat-resistant anti-corrosion discoloration paint.

[0061] In order to further optimize the above technical solution, in step (1), the stirring sp...

Embodiment 1

[0066] A temperature-resistant, anti-corrosion and color-changing paint, which is prepared by the following raw material ratio in terms of weight percentage: 57% of carboxyl-terminated hyperbranched polyamide resin, 10% of titanium dioxide, 5% of hollow microspheres, 5% of aluminum tripolyphosphate, active Nano-calcium 5%, graphene 0.1%, dispersant 2%, defoamer 0.1%, organic-inorganic compound anti-flash rust additive 1%, substrate wetting agent 0.5%, thickener 0.5%, deionization 20% of water, 3% of curing agent, 12% of phthalocyanine blue, wherein the carboxyl-terminated hyperbranched polyamide resin is prepared by reacting diamine, tribasic acid and amino-terminated silicone oil, and the curing agent is a polymer with a mass ratio of 1:2. A mixture of amide curing agent and aliphatic amine curing agent, the dispersant is a copolymer type dispersant with pigment affinity groups, the defoamer is a polyether siloxane copolymer type defoamer, the substrate is wet The agent is a ...

Embodiment 2

[0068] A temperature-resistant, anti-corrosion and color-changing paint, which is prepared by the following raw material ratio by weight percentage: 55% carboxyl-terminated hyperbranched polyamide resin, 12% titanium dioxide, 7% hollow microspheres, 8% aluminum tripolyphosphate, active Nano-calcium 7%, graphene 0.15%, dispersant 2.2%, defoamer 0.2%, organic-inorganic compound anti-flash rust additive 1.5%, substrate wetting agent 0.7%, thickener 0.8%, deionization 25% of water, 3.5% of curing agent, 12% of phthalocyanine blue, wherein the carboxyl-terminated hyperbranched polyamide resin is prepared by reacting diamine, tribasic acid and amino-terminated silicone oil, and the curing agent is a polymer with a mass ratio of 1:2. A mixture of amide curing agent and aliphatic amine curing agent, the dispersant is a copolymer type dispersant with pigment affinity groups, the defoamer is a polyether siloxane copolymer type defoamer, the substrate is wet The agent is a polyether silo...

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Abstract

The invention discloses temperature-resistant anti-corrosion color-changing paint and a preparation method thereof. The temperature-resistant anti-corrosion color-changing paint is prepared from the following raw materials in proportions: 55-60% of carboxy-terminated hyperbranched polyamide resin, 10-15% of titanium dioxide, 5-10% of hollow beads, 5-10% of anti-rust pigment, 5-10% of active nano-calcium, 0.1-0.2% of graphene, 2-2.5% of a dispersant, 0.1-0.3% of a defoamer, 1-2% of an anti-flash rust additive, 0.5-1% of a substrate wetting agent, 0.5-1% of a thickener, 20-30% of deionized water, 3-5% of a curing agent and 10-15% of color-changing pigment. The environmentally-friendly temperature-resistant anti-corrosion color-changing paint prepared with the preparation method provided by the invention is one-component water-based industrial paint. The anti-corrosion color-changing paint is not only resistant to high temperature and corrosion, but also has a wide range of applications,and is suitable for special work in the painting field.

Description

technical field [0001] The invention belongs to the technical field of industrial coatings, in particular to a temperature-resistant, anti-corrosion and discoloration coating and a preparation method thereof. Background technique [0002] In the petrochemical industry, many large-scale petroleum and chemical equipment, such as: hydrocracking furnaces in refineries, conversion reactors in methanol production units, gasifiers in fertilizer plants, gas headers for primary reformers, secondary reformers, and waste heat boilers , ammonia synthesis tower, etc., there are various chemical substances in it for various physical and chemical effects, and sometimes they are still operating under high temperature or high temperature and high pressure environment. Therefore, before putting into operation, the equipment is required to have safety measures, and the equipment's Temperature control is one of the keys to safe production. [0003] The usual temperature measuring device can on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D177/00C09D183/10C09D5/08C09D7/61C09D7/65C09D7/41
CPCC08K2003/2241C08K2003/327C08K2201/011C08L2201/08C08L2205/02C09D5/084C09D7/41C09D7/61C09D7/65C09D7/70C09D177/00C09D183/10C08L83/12C08K13/04C08K3/22C08K3/042C08K3/32
Inventor 陈红军陈锡元
Owner CHANGZHOU GUANLONG CHEMIAL
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