High-temperature-resistant corrosion-resistant coating for aluminum plate

A technology for anti-corrosion coatings and high temperature resistance, applied in anti-corrosion coatings, polyether coatings, epoxy resin coatings, etc., can solve problems such as poor high temperature resistance, low adhesion, poor acid and alkali resistance, etc., achieve good anti-corrosion performance, improve adhesion Concentration, the effect of stable performance

Inactive Publication Date: 2014-09-03
HEFEI TAITONG REFRIGERATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the performance of the anti-corrosion coating on the aluminum plate after treatment is unstable, low adhesion, poor high temperature resistance, poor acid and alkali resistance, and poor anti-corrosion performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A high-temperature-resistant anti-corrosion coating for aluminum plates, which consists of the following raw materials in parts by weight: 20-50 parts of epoxy resin, 15 parts of furan resin, 8 parts of flame-retardant polyether polyol, 3 parts of nano-calcium carbonate, tetramethyl 5 parts of silane, 5 parts of barium sulfate, 10 parts of butyl acetate, 10 parts of propylene glycol, 10 parts of modified zeolite powder, 1 part of dibutyltin dilaurate, 5 parts of silane coupling agent, 3 parts of chlorinated paraffin, 8 parts of chlorinated olefin 5 parts, 5 parts of modified straw ashes.

[0017] The modified zeolite powder is prepared by the following method: soak the zeolite with 8% sodium hydroxide for 35 hours, wash it, then calcinate it at 600°C for 5 hours, after cooling, soak it with 8% hydrogen peroxide solution for 3 hours, wash it, dry it, add Relative to its weight of 3% vinyltriethoxysilane, 1% sodium silicate, 2% powdered activated carbon and 1% Pyrex, stir...

Embodiment 2

[0024] A high-temperature-resistant anti-corrosion coating for aluminum plates, which consists of the following raw materials in parts by weight: 20-10 parts of epoxy resin, 18 parts of furan resin, 10 parts of flame-retardant polyether polyol, 4 parts of nano-calcium carbonate, tetramethyl 5 parts of silane, 7 parts of barium sulfate, 10 parts of butyl acetate, 10 parts of propylene glycol, 13 parts of modified zeolite powder, 2 parts of dibutyltin dilaurate, 6 parts of silane coupling agent, 4 parts of chlorinated paraffin, 10 parts of chlorinated olefin 6 parts, 6 parts of modified straw ashes.

[0025] The modified zeolite powder is prepared by the following method: first soak the zeolite with 10% sodium hydroxide for 4 hours, wash it, then calcinate it at 700°C for 4 hours, after cooling, soak it with 10% hydrogen peroxide solution for 4 hours, wash it, dry it, and Add 3% vinyltriethoxysilane relative to its weight, 2% sodium silicate, 3% powdered activated carbon, and 2%...

Embodiment 3

[0032] A high-temperature-resistant anti-corrosion coating for aluminum plates, which consists of the following raw materials in parts by weight: 20-50 parts of epoxy resin, 20 parts of furan resin, 10 parts of flame-retardant polyether polyol, 5 parts of nano-calcium carbonate, tetramethyl 5 parts of silane, 8 parts of barium sulfate, 10 parts of butyl acetate, 12 parts of propylene glycol, 15 parts of modified zeolite powder, 3 parts of dibutyltin dilaurate, 7 parts of silane coupling agent, 5 parts of chlorinated paraffin, 12 parts of chlorinated olefin 8 parts, modified straw ashes.

[0033] The modified zeolite powder is prepared by the following method: first soak the zeolite with 12% sodium hydroxide for 3 hours, wash it, then calcinate it at 800°C for 3 hours, after cooling, soak it with 12% hydrogen peroxide solution for 3 hours, wash it, dry it, and Add 3% vinyltriethoxysilane relative to its weight, 3% sodium silicate, 3% powdered activated carbon and 3% Pingpingjia...

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PUM

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Abstract

The invention discloses a high-temperature-resistant corrosion-resistant coating for an aluminum plate. The coating is prepared from the following raw materials in parts by weight: 30-50 parts of epoxy resin E20, 15-20 parts of furan resin, 8-10 parts of flame retardant polyether polyol, 3-5 parts of nano calcium carbonate, 3-5 parts of tetramethylsilane, 5-8 parts of barium sulfate, 8-10 parts of n-butyl acetate, 10-12 parts of propylene glycol, 10-15 parts of modified zeolite powder, 1-3 parts of di-n-butyltin dilaurate, 5-7 parts of silane coupling agent, 3-5 parts of chlorinated paraffin, 8-12 parts of chlorinated olefins and 5-8 parts of modified straw ash. According to the high-temperature-resistant corrosion-resistant coating for an aluminum plate disclosed by the invention, the modified zeolite powder is added into the formula, so that the adhesive force, the high temperature resistance and resistance to acid and base of the corrosion-resistant coating are greatly improved, and the formula is reasonable. In the aluminum plate preparing process, the aluminum plate is treated, and the corrosion-resistant coating formed on the surface of the aluminum plate is stable in performance, good in adhesive force, high-temperature-resistant, acid-resistant, base-resistant and good in corrosion resistance.

Description

technical field [0001] The invention relates to the technical field of refrigeration processing, in particular to a high-temperature-resistant and anti-corrosion coating for aluminum plates. Background technique [0002] Aluminum sheets are widely used in industries such as the inner lining of the refrigerator refrigeration system, the reflector of the water tank of the solar water heater, etc. After the aluminum plate is cast, it needs to carry out anti-corrosion treatment on its surface. In the field of refrigeration processing technology, the anti-corrosion treatment of the aluminum plate is an important processing step, which directly affects the quality of the aluminum plate. At present, the performance of anti-corrosion coating on aluminum plate after treatment is unstable, low adhesion, poor high temperature resistance, poor acid and alkali resistance, and poor anti-corrosion performance. Contents of the invention [0003] The purpose of the present invention is to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D161/00C09D171/00C09D5/08C09D7/12
Inventor 马功权田四光李多春
Owner HEFEI TAITONG REFRIGERATION TECH CO LTD
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