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Fireproof powder paint

A powder coating and epoxy resin technology, applied in powder coatings, fire-resistant coatings, anti-corrosion coatings, etc., can solve the problems of powder coating peeling and charge leakage, and achieve high surface resistance, difficult charge leakage, and excellent chemical resistance. Effect

Inactive Publication Date: 2015-02-18
李永志
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the surface resistance of the powder coating is too low, it is easy to cause the leakage of charges at the corners of the substrate, which will cause the powder coating on the substrate to fall off

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The preparation method of fireproof powder coating, comprises the following steps,

[0015] (1) In parts by weight, 10 parts of bisphenol F epoxy resin, 30 parts of aliphatic glycidyl ether epoxy resin, 15 parts of poly(meth)acrylic resin with free carboxyl groups, 15 parts of FEVE fluorocarbon resin , 4 parts of ammonium polyphosphate, 1 part of magnesium carbonate, 4 parts of rubber powder, 8 parts of carbon black, 3 parts of aluminum powder, 3 parts of iron oxide red, 5 parts of curing agent, 1 part of stabilizer and 1 part of leveling agent and mix well .

[0016] (2) Use a twin-screw extruder to extrude the mixed material at the front end at 70°C-80°C, raise the temperature of the extruder to 120°C-130°C in the middle section, and then extrude to form, and obtain powder coating after crushing.

Embodiment 2

[0018] The preparation method of fireproof powder coating, comprises the following steps,

[0019] (1) In parts by weight, 20 parts of bisphenol F epoxy resin, 45 parts of aliphatic glycidyl ether epoxy resin, 18 parts of poly(meth)acrylic resin with free carboxyl groups, 20 parts of FEVE fluorocarbon resin , 8 parts of ammonium polyphosphate, 2 parts of magnesium carbonate, 8 parts of rubber powder, 12 parts of carbon black, 5 parts of aluminum powder, 5 parts of iron oxide red, 8 parts of curing agent, 2 parts of stabilizer and 2 parts of leveling agent and mix well .

[0020] (2) Use a twin-screw extruder to extrude the mixed material at the front end at 70°C-80°C, raise the temperature of the extruder to 120°C-130°C in the middle section, and then extrude to form, and obtain powder coating after crushing.

Embodiment 3

[0022] The preparation method of fireproof powder coating, comprises the following steps,

[0023] (1) In parts by weight, 15 parts of bisphenol F epoxy resin, 37 parts of aliphatic glycidyl ether epoxy resin, 16 parts of poly(meth)acrylic resin with free carboxyl groups, 18 parts of FEVE fluorocarbon resin , 6 parts of ammonium polyphosphate, 1.3 parts of magnesium carbonate, 5 parts of rubber powder, 10 parts of carbon black, 4 parts of aluminum powder, 4 parts of red iron oxide, 7 parts of curing agent, 1.2 parts of stabilizer and 1.5 parts of leveling agent are mixed evenly .

[0024] (2) Use a twin-screw extruder to extrude the mixed material at the front end at 70°C-80°C, raise the temperature of the extruder to 120°C-130°C in the middle section, and then extrude to form, and obtain powder coating after crushing.

[0025] Adopt raw material of the present invention when preparing powder coating, owing to have included aliphatic glycidyl ether epoxy resin, poly(meth)acry...

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PUM

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Abstract

The invention discloses a fireproof powder paint which is composed of the following components in parts by weight: 10-20 parts of bisphenol F epoxy resin, 30-45 parts of aliphatic glycidol ether epoxy resin, 15-18 parts of poly(methyl) acrylic resin with free carboxyl group, 15-20 parts of FEVE fluorocarbon resin, 4-8 parts of ammonium polyphosphate, 1-2 parts of magnesium carbonate, 4-8 parts of rubber powder, 8-12 parts of carbon black, 3-5 parts of aluminum powder, 3-5 parts of iron oxide red, 5-8 parts of curing agent, 1-2 parts of stabilizer and 1-2 parts of leveling agent. The powder paint has the advantages of moderate volume resistance, high surface resistance and favorable fire resistance.

Description

technical field [0001] This invention relates to powder coatings. Background technique [0002] At present, with the rapid development of global industry, the environmental problems caused are becoming increasingly prominent. How to carry out environmental protection work has become an important subject to be studied urgently. Some western countries with strong environmental awareness have developed and researched automotive coatings with low volatile organic compounds, and put them into production and use in large quantities. With the continuous development of the automobile industry, in order to beautify the appearance of the automobile coating film and reduce the environmental pollution caused by it, it is particularly important to improve the automobile spraying technology. [0003] For automotive powder coatings, if the volume resistance of the powder coating is too high, the powder will not be easily adsorbed on the substrate, and if the volume resistance is too...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D133/00C09D127/12C09D5/18C09D5/03C09D5/08C09D7/12
CPCC09D163/00C08L2205/025C08L2205/035C09D5/03C09D5/103C09D5/18C09D7/61
Inventor 李永志
Owner 李永志
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