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Formula and preparation method of coating not easy to fade

A kind of paint, not easy technology, applied in the direction of fireproof paint, polyester paint, coating, etc., can solve the problems of paint influence, heat resistance, poor weather resistance, fading, etc.

Inactive Publication Date: 2018-09-04
CHENGDU YULONG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, molybdenum chromium red powder has the characteristics of excellent solvent resistance, heat resistance and weather resistance, but its tinting power is poor, and it is not easy to color in the use of coatings; while the relative density of red powder is small, the tinting power is strong, and the hiding power is high. The color is bright, but its heat resistance and weather resistance are poor. If it is exposed to ultraviolet light for a long time, the color will become lighter or even faded, which will have a certain impact on the use of the paint.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] First, accurately weigh 28g of red pink powder and 33g of molybdenum chrome red powder, disperse for 5 minutes through a pulverizer and disperser, mix well and put them in a small beaker for use. Then add 3.2g of bentonite and 76g of solvent into a large beaker, stir and initially mix with a glass rod, and then use a disperser to evenly disperse the bentonite in the solvent to obtain a flocculent bentonite suspension, which is used as a new solvent for coatings. Add 2.6g dispersant, 2.6g defoamer, 2.2g leveling agent, 2.2g silane coupling agent in the prepared new solvent successively, stir and mix evenly, then add 200g polyester resin, agitator stirs at high speed, wait After the dispersion is uniform, reduce the stirring speed, and add 42g sericite powder, 38g light calcium powder, 76g high calcium powder, 61g mixed red toner and 3g ultraviolet absorber while stirring at medium and low speed, and continue to stir at high speed for 15 Minutes to disperse evenly to obta...

Embodiment 2

[0027] First accurately weigh 42g bright red pink powder and 52.4g molybdenum chrome red powder, disperse for 8 minutes by pulverizer and disperser, place in beaker after mixing uniformly and stand by. Then add 4.8g of bentonite and 120g of solvent into a large beaker, stir and initially mix with a glass rod, and then use a disperser to evenly disperse the bentonite in the solvent to obtain a flocculent bentonite suspension, which is used as a new solvent for coatings. Add 3.8g dispersant, 3.6g defoamer, 3.4g leveling agent, 3.4g silane coupling agent in the prepared new solvent successively, stir and mix evenly, then add 300g polyester resin, agitator stirs at high speed, wait After the dispersion is uniform, reduce the stirring speed, and add 66g of sericite powder, 56g of light calcium powder, 116g of high calcium powder, 94.4g of mixed red toner and 4.8g of ultraviolet absorber in sequence while stirring at medium and low speed. Stir for 20 minutes to disperse evenly to ob...

Embodiment 3

[0029] First, accurately weigh 42g of red pink powder and 50g of molybdenum chrome red powder, disperse them for 8 minutes through a pulverizer and disperser, mix them evenly, and place them in a beaker for use. Then add 4.6g of bentonite and 120g of solvent into a large beaker, stir and initially mix with a glass rod, and then use a disperser to evenly disperse the bentonite in the solvent to obtain a flocculent bentonite suspension, which is used as a new solvent for coatings. Add 3.8g dispersant, 3.8g defoamer, 3.4g leveling agent, 3.4g silane coupling agent successively in the new solvent obtained, stir and mix evenly, then add 300g polyester resin, stirrer high-speed stirring, wait After the dispersion is uniform, reduce the stirring speed, and add 68g sericite powder, 60g light calcium powder, 110g high calcium powder, 92g mixed red toner and 4.8g ultraviolet absorber while stirring at medium and low speed, and continue to stir at high speed after the addition is complete...

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PUM

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Abstract

The invention discloses a formula and a preparation method of a coating not easy to fade, and relates to the technical field of chemical preparation. The coating is prepared from the following raw materials in parts by mass: 10 to 15 parts of polyurethane resin, 8 to 12 parts of a curing agent, 3.8 to 5.8 parts of high calcium powder, 1.9 to 2.8 parts of light calcium powder, 2.1 to 3.3 parts of sericite powder, 0.15 to 0.24 part of bentonite, 1.4 to 2.1 parts of molybdenum chromium red toner, 1.65 to 2.62 parts of pigment scarlet toner, 3.8 to 5.7 parts of a solvent, 0.13 to 0.19 part of a dispersing agent, 0.13 to 0.19 part of a defoaming agent, 0.11 to 0.17 part of a flatting agent, 0.11 to 0.17 part of a silane coupling agent and 0.15 to 0.24 part of an ultraviolet light absorber. Thecoating prepared through the method is excellent in heat resistance and weather resistance, high in tinting strength, not easy to fade after being irradiated by ultraviolet light for a long term, andcapable of well solving the above problems.

Description

technical field [0001] The invention relates to the technical field of chemical preparation, in particular to a non-fading coating formula and a preparation method thereof. Background technique [0002] Organic toner red powder and inorganic toner molybdenum chrome red powder are two kinds of toners commonly used in coatings. Among them, molybdenum chromium red powder has the characteristics of excellent solvent resistance, heat resistance and weather resistance, but its tinting power is poor, and it is not easy to color in the use of coatings; while the relative density of red powder is small, the tinting power is strong, and the hiding power is high. The color is bright, but its heat resistance and weather resistance are poor. If it is exposed to ultraviolet light for a long time, the color will become lighter or even faded, which will have a certain impact on the use of the paint. Contents of the invention [0003] The object of the present invention is to provide a no...

Claims

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Application Information

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IPC IPC(8): C09D167/00C09D7/62C09D7/61
CPCC08K2003/265C09D5/18C09D167/00C09D7/61C09D7/62C08K13/06C08K3/346C08K3/26C08K3/34
Inventor 张路叶锐卢克涛
Owner CHENGDU YULONG CHEM