High-temperature-resistant anticorrosive paint and preparation method thereof

An anti-corrosion coating and high temperature resistance technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings and other directions, can solve the problems of poor secondary film forming performance, poor high temperature resistance, affecting product quality, etc., and achieve good weather resistance, Good interoperability and improved scratch resistance

Inactive Publication Date: 2012-10-10
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] First of all, the existing anti-corrosion coating products have poor high temperature resistance
In general, the anti-corrosion coating on the existing cold-rolled carbon steel sheet (SPCC) base material is limited to a temperature of 550°C, and interlayer explosion will occur if the temperature exceeds 550°C; and the existing coating on the cold-rolled carbon steel sheet is in The anti-corrosion performance in the temperature range of 350°C-450°C is also very poor
Second, the existing high-temperature anti-corrosion paint has poor secondary film-forming performance. After the secondary film-formin

Method used

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  • High-temperature-resistant anticorrosive paint and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A preparation method of high temperature resistant anticorrosion coating, comprising the steps of:

[0032] Preparation of topcoat: Take 20g polyester modified silicone resin (Guangzhou Liuping Chemical Co., Ltd., model 8810A), 1g additive dimethyl siloxane, 25g xylene, 15g butyl ester, 10g propylene glycol methyl ether acetate Ester, 8.05g of glass powder, 11.6g of talc powder, 4.35g of mica powder, and 5g of carbon black were put into operation kettle A, and dispersed at 500RPM for 70min. According to the mass percentage of raw materials in the diluent, xylene is 50%, butyl ester is 30%, and propylene glycol methyl ether acetate is 20%. According to the mass percentage of raw materials, 20% of polyester modified silicone resin, 29% of filler, 50% of diluent, and 1% of auxiliary agent.

[0033] Preparation of primer: Take 15g epoxy modified silicone resin (produced by Hubei Sihai Chemical Co., Ltd., model SH-023), 10g phenolic resin (phenolic resin 2130), 1g additive ...

Embodiment 2

[0044] The preparation steps of the high temperature resistant anti-corrosion paint of this embodiment are as embodiment 1, wherein the raw material formula of topcoat and primer is as follows:

[0045] Topcoat: Primer:

[0046] Polyester modified silicone resin: 20g Epoxy modified silicone resin: 13g

[0047] Polymethylphenylsiloxane: 1g Phenolic resin: 12g

[0048] Xylene: 5g Polymethylphenylsiloxane: 0.8g

[0049] Butyl ester: 25g Xylene: 3.42g

[0050] Propylene glycol methyl ether acetate: 20g Butyl ester: 14.78g

[0051] Glass powder: 8.7g Propylene glycol methyl ether acetate: 16g

[0052] Talc powder: 8.7g Glass powder: 12g

[0053] Mica powder: 8.7g Talc powder: 12g

[0054] Carbon black: 2.9g Mica powder: 12g

[0055] Aluminum tripolyphosphate: 4g

[0056] During the preparation, in the preparation of the topcoat, after adding the raw materials into the operation kettle A, disperse at 1000RPM for 40min. In the configura...

Embodiment 3

[0067] The preparation steps of the high temperature resistant anti-corrosion paint of this embodiment are as embodiment 1, wherein the raw material formula of topcoat and primer is as follows:

[0068] Topcoat: Primer:

[0069] Polyester modified silicone resin: 20g Epoxy modified silicone resin: 10g

[0070] Polymethylphenylsiloxane: 1g Phenolic resin: 15g

[0071] Xylene: 5g Polymethylphenylsiloxane: 0.5g

[0072] Butyl ester: 15g Xylene: 17.25g

[0073] Propylene glycol methyl ether acetate: 30g Butyl ester: 10.35g

[0074] Glass powder: 2.9g Propylene glycol methyl ether acetate: 6.9g

[0075] Talc powder: 11.6g Glass powder: 11g

[0076] Mica powder: 8.7g Talc powder: 16g

[0077] Carbon black: 5.8g Mica powder: 6g

[0078] Aluminum tripolyphosphate: 7g

[0079] During the preparation, in the preparation of the topcoat, after adding the raw materials into the operation kettle A, disperse at 600RPM for 50min. In the configura...

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Abstract

The invention discloses high-temperature-resistant anticorrosive paint and a preparation method thereof. The paint comprises finishing paint and a primer which are matched, wherein calculated by mass percentage, the raw-material formula of the finishing paint comprises the following components: 20-30 percent of polyester modified organic silicon resin, 20-40 percent of filler, 30-50 percent of thinner and 0.5-1 percent of auxiliary agent; the filler is the mixture of glass powder, talcum powder, mica powder and carbon black; the raw-material formula of the primer comprises the following components: 10-20 percent of organic-silicon modified epoxy resin, 10-20 percent of phenolic resin, 20-40 percent of primer filler, 30-50 percent of thinner and 0.5-1 percent of auxiliary agent; and the primer filler is the mixture of iron red, mica powder, talcum powder and glass powder. The fillers adopted by the invention have the performances of acid resistance, alkali resistance, heat resistance, fire resistance, insulation and the like, and the obtained paint has the advantages of good weather resistance, high-temperature resistance, small color difference, good anticorrosive performance, good bonding force and low preparation cost.

Description

technical field [0001] The invention relates to an anti-corrosion coating, in particular to a high-temperature-resistant anti-corrosion coating and a preparation method thereof. The coating is mainly used in the preparation of high-temperature-resistant steel. Background technique [0002] High-temperature resistant anti-corrosion coatings are widely used in high-temperature places such as steel chimneys, high-temperature pipes, high-temperature furnaces, petroleum cracking devices, and military equipment to delay thermal oxidation corrosion of metal equipment such as steel at high temperatures and ensure long-term use of equipment. [0003] First of all, the existing anti-corrosion coating products have poor high temperature resistance. In general, the anti-corrosion coating on the existing cold-rolled carbon steel sheet (SPCC) base material is limited to a temperature of 550°C, and interlayer explosion will occur if the temperature exceeds 550°C; and the existing coating o...

Claims

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Application Information

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IPC IPC(8): C09D183/00C09D163/00C09D161/06C09D7/12C09D5/08
Inventor 李静李琼梁剧姚泽民
Owner SOUTH CHINA UNIV OF TECH
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