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High-temperature-resistant black sand grain powder paint

A powder coating, high temperature resistant technology, applied in powder coatings, polyester coatings, epoxy resin coatings, etc., can solve the problems of high cost, promotion and use, etc.

Active Publication Date: 2013-09-25
ZHEJIANG HUACAI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is more environmentally friendly than oil-based coatings, its popularization is limited due to its high cost and the need for high-temperature curing (the minimum curing condition is 230°C×20 minutes).

Method used

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  • High-temperature-resistant black sand grain powder paint
  • High-temperature-resistant black sand grain powder paint
  • High-temperature-resistant black sand grain powder paint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Accurately weigh the material according to the formula composition shown in Table 1, put it in a high-speed mixer and mix it for 6-8 minutes; extrude the material with an extruder at a temperature of 90-100°C after mixing; cool and crush the extruded material with a pulverizer Crushed into powder particles with an average particle size of 30-33 microns; then sieved with a 180-mesh sieve, and finally packaged into a finished product.

[0026] Table 1 Low-cost black sand grain powder coating formula (weight percent) cured at room temperature and resistant to high temperature (600°C)

[0027] materials % Silicone resin 25 epoxy resin 13 polyester resin 13 Low melting point glass powder 20 Manganese black 8 Mica powder 19 Sanding agent 0.3 hardening agent 0.7 leveling agent 1

[0028] The powder coating obtained according to the above examples adopts the following spraying and testing process: the finished ...

Embodiment 2

[0032] Accurately weigh the material according to the formula composition shown in Table 3, place it in a high-speed mixer and mix it for 6-8 minutes; extrude the material with an extruder at a temperature of 90-100°C after mixing; cool and crush the extruded material with a pulverizer Crushed into powder particles with an average particle size of 30-33 microns; then sieved with a 180-mesh sieve, and finally packaged into a finished product.

[0033] Table 3 Low-cost black sand texture powder coating formula (weight percentage)

[0034] materials % Silicone resin 25 epoxy resin 10 polyester resin 15 Low melting point glass powder 20 Manganese black 8 Mica powder 20 Sanding agent 0.3 hardening agent 0.7 leveling agent 1

[0035] The powder coating obtained according to the above examples adopts the following spraying and testing process: the finished product is sprayed on a 0.6 mm iron plate for testing with an...

Embodiment 3

[0039] Accurately weigh the material according to the formula composition shown in Table 5, place it in a high-speed mixer and mix it for 6-8 minutes; extrude the material with an extruder at a temperature of 90-100°C after mixing; cool and crush the extruded material with a pulverizer Crushed into powder particles with an average particle size of 30-33 microns; then sieved with a 180-mesh sieve, and finally packaged into a finished product.

[0040] Table 5 Low-cost black sand grain powder coating formula (weight percent) cured at room temperature and resistant to high temperature (600°C)

[0041] materials % Silicone resin 30 epoxy resin 10 polyester resin 10 Low melting point glass powder 20

[0042] Manganese black 8 Mica powder 15 Sanding agent 0.3 hardening agent 0.7 leveling agent 1

[0043] The powder coating obtained according to the above examples adopts the following spraying and testing p...

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Abstract

The invention relates to powder paint, and especially relates to high-temperature-resistant black sand grain powder paint. The paint is prepared from the materials of, by weight, 20-50% of silicone resin, 5-20% of epoxy resin, 5-20% of polyester resin , 10-30% of low-melting-point glass powder, 1-20% of mica powder, 1-10% of high-temperature-resistant black pigment, 0.1-0.5% of a sand grain agent, and 0.1-2% of other additives. According to the technical scheme provided by the invention, silicone resin and normal-temperature-cured conventional resin are blended, such that the entire system can be cured and crosslinked into a film under normal temperature, and has excellent physical performances. The silicone resin can resist temperature of at least 500 DEG C. Before the low-melting-point glass powder is formed into a film, a coating is prevented from cracking and falling.

Description

technical field [0001] The invention relates to a powder coating, in particular to a high-temperature-resistant black sand grain powder coating. technical background [0002] High-temperature-resistant powder coatings can be widely used in electrical appliances, metallurgy, petroleum, aviation, chemical industry, medicine, food and other industries and various high-temperature-resistant equipment (such as: barbecue ovens, heaters, high-power lighting, heating pipes, automobiles and motorcycles. appliances, high temperature furnaces, chimneys, etc.). Although it is more environmentally friendly than oil-based coatings, its popularization is limited due to its high cost and the need for high-temperature curing (the minimum curing condition is 230°C × 20 minutes). The development of low-cost room temperature curing high-temperature resistant powder coatings can make environmentally friendly powder coatings replace paints and be applied to the above-mentioned various high-tempe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/00C09D163/02C09D167/00C09D7/12C09D5/03
Inventor 孙华强
Owner ZHEJIANG HUACAI NEW MATERIAL CO LTD
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