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A powder porous fireproof and heat-insulating coating for aluminum alloy and its preparation method

A heat-insulating coating and aluminum alloy technology, applied in coatings, devices for coating liquid on the surface, etc., can solve problems such as unsatisfactory fire-proof and heat-insulation effects, high production costs, and non-compliance with environmental protection requirements

Active Publication Date: 2021-06-15
江西云胜新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a powder porous fire-proof and heat-insulating coating for aluminum alloys, which solves the problems of unsatisfactory fire-proof and heat-insulating effects in the prior art, does not meet environmental protection requirements, and has high production costs.

Method used

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  • A powder porous fireproof and heat-insulating coating for aluminum alloy and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Step 1. Weigh the following components according to mass percentage,

[0032] Bauxite powder 75%, EPS powder 0.3%, binder polytetrafluoroethylene 12%, binder copper phosphate 12.7%, the total is 100%;

[0033] Step 2, mixing the bauxite powder, EPS powder, polytetrafluoroethylene, and copper phosphate weighed in step 1 in proportion to obtain mixture A;

[0034] Step 3. Put the mixture A obtained in step 2 on a planetary ball mill for high-speed dispersion mixing and stirring for 10 hours to obtain powder fireproof and heat-insulating coating B;

[0035] Step 4. Use a spray gun to spray the powder fire-proof and heat-insulating coating B obtained in step 3 on the surface of the pretreated aluminum alloy, spray twice, and dry at 300°C for 40 minutes to obtain a powder porous fire-proof and heat-insulating coating, and finally Apply fire retardant coating with matching topcoat.

Embodiment 2

[0037] Step 1. Weigh the following components according to mass percentage,

[0038] Bauxite powder 82%, EPS powder 0.5%, binder polytetrafluoroethylene 8%, binder copper phosphate 9.5%, the total is 100%;

[0039] Step 2, mixing the bauxite powder, EPS powder, polytetrafluoroethylene, and copper phosphate weighed in step 1 in proportion to obtain mixture A;

[0040] Step 3. Put the mixture A obtained in step 2 on a planetary ball mill for high-speed dispersion mixing and stirring for 8 hours to obtain powder fireproof and heat-insulating coating B;

[0041] Step 4. Use a spray gun to spray the powder fire-proof and heat-insulating coating B obtained in step 3 on the surface of the pretreated aluminum alloy, spray twice, and dry at 250°C for 70 minutes to obtain a powder porous fire-proof and heat-insulating coating, and finally Apply fire retardant coating with matching topcoat.

Embodiment 3

[0043] Step 1. Weigh the following components according to mass percentage,

[0044] Bauxite powder 88%, EPS powder 0.8%, binder polytetrafluoroethylene 5%, binder copper phosphate 6.2%, the total is 100%;

[0045] Step 2, mixing the bauxite powder, EPS powder, polytetrafluoroethylene, and copper phosphate weighed in step 1 in proportion to obtain mixture A;

[0046] Step 3. Put the mixture A obtained in step 2 on a planetary ball mill for high-speed dispersion mixing and stirring for 5 hours to obtain powder fireproof and heat-insulating coating B;

[0047] Step 4. Use a spray gun to spray the powder fire-proof and heat-insulating coating B obtained in step 3 on the surface of the pretreated aluminum alloy, spray for 3 times, and dry at 200°C for 50 minutes to obtain a powder porous fire-proof and heat-insulating coating. Finally Apply fire retardant coating with matching topcoat.

[0048] The specific performance test results of the powder porous fireproof and heat-insulat...

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Abstract

The invention discloses a powder porous fire-proof and heat-insulating coating for aluminum alloy, which consists of the following components according to the mass percentage: 70%-90% of bauxite powder, 0.1%-1% of EPS powder, polytetrafluoroethylene 5% to 15%, copper phosphate 5% to 15%, the total is 100%. The invention also discloses a preparation method of the powder porous fire-proof and heat-insulating coating for aluminum alloy. The fire-proof and heat-insulating coating of the invention has simple components, excellent heat resistance, aging resistance, non-toxicity and pollution-free, strong process operability, low production cost and good social and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of fireproof and heat-insulating coatings, and relates to a powder porous fireproof and heat-insulating coating for aluminum alloys, and also relates to a preparation method of the powder porous fireproof and heat-insulating coatings for aluminum alloys. Background technique [0002] Fire retardant coatings are composed of base materials and flame retardant additives. In addition to having the decorative effect of ordinary coatings and providing physical protection for the substrate, they also need to have special functions of flame retardant and fire resistance. Therefore, fire retardant coating is a special coating that integrates decoration and fire prevention. It also has functions such as anti-corrosion, anti-rust, acid and alkali resistance, weather resistance, water resistance, and salt spray resistance. The effect can effectively prevent the spread of flames and prevent the spread of fire. It is wide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/14B05D7/24B05D7/00C04B26/08C04B111/28
CPCB05D7/14B05D7/24B05D7/544B05D2202/25C04B26/08C04B2111/00155C04B2111/00525C04B2111/28C04B2201/50C04B14/303C04B24/2676C04B22/16
Inventor 屈银虎左文婧祁志旭梅超袁建才
Owner 江西云胜新材料有限公司
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