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Quick-drying water-based antirust paint for metals

A technology for anti-rust coatings and metals, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of slow drying, salt spray resistance, etc., and achieve the effect of simple preparation method and simple and easy-to-obtain raw materials

Inactive Publication Date: 2016-09-28
任新根
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a quick-drying water-based anti-rust coating for metals with fast drying and good salt resistance, which solves the technical problems of slow drying and salt spray resistance of existing metal materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Step 1: Weigh 100 parts of deionized water, 30 parts of ethyl phosphate, 0.5 parts of zinc oxide, 15 parts of ethyl cellosolve, 25 parts of polystyrene resin, and 1 part of sodium metaborate according to the ratio of parts by mass. 15 parts of light calcium carbonate, 8 parts of barium sulfate, 10 parts of diphenyl ether resin, 5 parts of phosphoric acid.

[0017] Step 2: Put deionized water, ethyl phosphate, zinc oxide, ethyl cellosolve and sodium metaborate into the reaction kettle, heat to 55°C, and stir at 200r / min for 40min.

[0018] Step 3: Let the stirred liquid stand for 8 hours, add polystyrene resin, light calcium carbonate, barium sulfate, diphenyl ether resin and phosphoric acid, mix well at 80°C, put it into a grinder for 4 hours, filter and pack .

[0019] Pencil hardness HB, smooth coating film, viscosity 60s, hardness 3; adhesion level 1, water resistance 15d without exception, impact strength 500N / cm; salt resistance 25°C, soaked in 3% sodium chloride ...

Embodiment 2

[0021] Step 1: Weigh 100 parts of deionized water, 50 parts of ethyl phosphate, 2.5 parts of zinc oxide, 35 parts of ethyl cellosolve, 45 parts of polystyrene resin, and 5 parts of sodium metaborate according to the ratio of parts by mass. 55 parts of light calcium carbonate, 12 parts of barium sulfate, 30 parts of diphenyl ether resin, 25 parts of phosphoric acid.

[0022] Step 2: Put deionized water, ethyl phosphate, zinc oxide, ethyl cellosolve and sodium metaborate into the reaction kettle, heat to 75°C, and stir at 400r / min for 80min.

[0023] Step 3: Put the stirred liquid aside for 12 hours, add polystyrene resin, light calcium carbonate, barium sulfate, diphenyl ether resin and phosphoric acid, mix well at 120°C, put it into a grinder for 6 hours, filter and pack .

[0024] Pencil hardness HB, smooth coating film, viscosity 65s, hardness 3.5; adhesion level, water resistance 20d without exception, impact strength 550N / cm; salt resistance 25℃, soaked in 3% sodium chlor...

Embodiment 3

[0026] Step 1: Weigh 100 parts of deionized water, 45 parts of ethyl phosphate, 2 parts of zinc oxide, 30 parts of ethyl cellosolve, 40 parts of polystyrene resin, and 4 parts of sodium metaborate according to the ratio of parts by mass. 45 parts of light calcium carbonate, 11 parts of barium sulfate, 25 parts of diphenyl ether resin, 20 parts of phosphoric acid.

[0027] Step 2: Put deionized water, ethyl phosphate, zinc oxide, ethyl cellosolve and sodium metaborate into the reaction kettle, heat to 55°C, and stir at 200r / min for 40min.

[0028] Step 3: Let the stirred liquid stand for 8 hours, add polystyrene resin, light calcium carbonate, barium sulfate, diphenyl ether resin and phosphoric acid, mix well at 80°C, put it into a grinder for 4 hours, filter and pack .

[0029] Pencil hardness HB, smooth coating film, viscosity 70s, hardness 4; adhesion level, water resistance 25d without exception, impact strength 600N / cm; salt resistance 25℃, soaked in 3% sodium chloride aq...

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Abstract

The invention discloses a quick-drying water-based antirust paint for metals. The paint is prepared from deionized water, ethyl phosphate, zinc oxide, ethyl cellosolve, a polystyrene resin, sodium metaborate, light calcium carbonate, barium sulfate, a diphenyl ether resin and phosphoric acid. The pencil hardness is HB; the paint film is smooth; the viscosity is 60-80s; and the hardness is 3-5. dhesion is Grade 1; the paint can resist water for 15-35 days without abnormity; and the impact strength is 500-700N / cm. The paint can be immersed in a 3% sodium chloride water solution at 25 DEG C for 10-30 days without discoloring or blistering. The surface drying time is 10-30 minutes, and the solid drying time is 2-6 hours. The paint has dvantages of simple preparation method and simple and accessible raw materials, and can be widely produced and continuously substituted for the existing materials.

Description

technical field [0001] The invention relates to the technical field of metal materials, in particular to a quick-drying water-based antirust paint for metal. Background technique [0002] Coatings that protect metal surfaces from chemical or electrochemical corrosion from the atmosphere, sea deionized water, etc. Coating anti-rust coatings on the metal surface can effectively prevent the direct invasion of various corrosive substances in the atmosphere, so as to maximize the extension of the service life of the metal. It can be divided into two categories: physical and chemical antirust paint. The former relies on the proper coordination of pigments and paints to form a dense paint film to prevent the intrusion of corrosive substances, such as iron red, aluminum powder, graphite antirust paint, etc.; the latter relies on the chemical antirust effect of antirust pigments, such as red Dan, zinc yellow antirust paint, etc. Used for rust prevention of bridges, ships, pipeline...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/06C09D171/12C09D5/08C09D7/12
CPCC09D125/06C09D5/08C09D7/61C09D7/63C08L71/12C08K13/02C08K5/521C08K2003/2296C08K3/38C08K2003/265C08K2003/3045C08K2003/329
Inventor 任新根
Owner 任新根
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