SiO2 potassium silicate atomic oxygen resistant paint and its preparation method

A technology of protective coating and potassium silicate, which is applied in the direction of coating, etc., can solve the problems of poor adaptability to the volume change of the substrate, achieve strong anti-ultraviolet radiation ability, significant anti-atomic oxygen effect, and improve compactness

Inactive Publication Date: 2004-10-20
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of anti-atomic oxygen corrosion, antistatic and anti-radiation SiO 2 - Potassium silicate atomic oxygen protective coating, which overcomes the shortcomings of traditional inorganic coatings such as brittleness, porousness, and poor adaptability to substrate volume changes. It uses silicon oxide and zinc oxide as pigments combined with potassium silicate and silicon acrylic emulsion to make it It has the function of protecting atomic oxygen, and can improve the compactness, softness and leveling of the paint film

Method used

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  • SiO2 potassium silicate atomic oxygen resistant paint and its preparation method
  • SiO2 potassium silicate atomic oxygen resistant paint and its preparation method
  • SiO2 potassium silicate atomic oxygen resistant paint and its preparation method

Examples

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Effect test

Embodiment 1

[0026] Put 80g of potassium silicate and 200g of water into the stirring tank, start the mixer and stir evenly, then add 2g of stabilizer diethanolamine and stir evenly, dilute the industrial sulfuric acid into 10% (volume concentration) dilute sulfuric acid, and slowly add it to the stirring tank In the method, the pH value is controlled in the range of 11-13, and the addition amount is 2 g to obtain the acid-modified water glass base material. Sodium hexametaphosphate 1.5g is dissolved into 10% aqueous solution and is dropped in the stirring tank, then drops into antifoaming agent polyether modified methyl polysiloxane 1.5g (produced from German Bayer company, product model is VP3468) and 2 g of ND type dispersant (a phosphate / amine compound, manufactured by Bayer, Germany) was stirred evenly. Put 15g of light calcium carbonate, 40g of heavy calcium carbonate, 15g of talcum powder, 15g of mica, 28g of zinc oxide and 150g of silicon oxide into a mixing tank for dispersion, an...

Embodiment 2

[0028] Put 86g of potassium silicate and 180g of water into the mixing tank, start the mixer and stir evenly, then add 1.7g of stabilizer diethanolamine and stir evenly, dilute the industrial sulfuric acid into 10% (volume concentration) dilute sulfuric acid, slowly add to the stirring tank In the tank, the pH value is controlled in the range of 11 to 13, and the addition amount is 2.5 g to obtain the acid-modified water glass base material. Sodium hexametaphosphate 1g was dissolved into a 10% aqueous solution and dropped into a stirring tank, and then 1g of antifoaming agent polyether modified methylpolysiloxane (produced by Bayer Company in Germany, product model VP3468) and ND type 2 g of dispersant (phosphate / amine compound, manufactured by Bayer Company in Germany, ie) was stirred evenly. Put 25g of light calcium carbonate, 45g of heavy calcium carbonate, 25g of talcum powder, 25g of mica, 28g of zinc oxide and 140g of silicon oxide into a mixing tank for dispersion, and ...

Embodiment 3

[0030] Put 105g of potassium silicate and 200g of water into the mixing tank, start the mixer and stir evenly, then add 1.6g of stabilizer diethanolamine and stir evenly, dilute the industrial sulfuric acid into 10% (volume concentration) dilute sulfuric acid, slowly add to the stirring tank In the tank, the pH value is controlled in the range of 11 to 13, and the addition amount is 3g to obtain the acid-modified water glass base material. Sodium hexametaphosphate 1g is dissolved into 10% aqueous solution and dropped in the stirring tank, then drops into antifoaming agent polyether modified methyl polysiloxane 1.2g (produced in German Bayer company, product model is VP3468) and ND Type dispersant 2g (phosphate / amine compound, manufactured by Bayer Company in Germany) was stirred evenly. Put 20g of light calcium carbonate, 40g of heavy calcium carbonate, 20g of talcum powder, 20g of mica, 28g of zinc oxide and 180g of silicon oxide into a mixing tank for dispersion, and grind w...

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Abstract

An atomic oxygen resistant SiO2-potassium silicate paint for earth spaceship is prepared from cilicic acrylate emulsion and slurry through preparing said slurry from potassium silicate, diethanolamine, sodium hexametaphosphate, disperser, defoaming agent, light calcium carbonate, heavy calcium carbonate, talc powder, mica, silicon oxide, zinc oxide and water, adding said cilicic acrylate emulsion and stirring. Its advantage is high effect to resist corrosion of atomic oxygen, static electricity and radiation.

Description

technical field [0001] The invention relates to anti-corrosion and anti-radiation protection technology for the surface of a near-earth orbiter, specifically a SiO 2 - Potassium silicate atomic oxygen protection coating and preparation method. Background technique [0002] Atomic oxygen (AO) in the near-earth orbit environment is a very important environmental condition for long-term near-earth orbit vehicles (such as satellites, manned spacecraft, space stations, space shuttles and other spacecraft, as well as various space probes) . As atomic oxygen is a strong oxidant, it corrodes the surface material of the aircraft to cause mass loss, reduce the strength of the material, and change the chemical and thermal properties of the material, thus posing a hazard to the normal flight of the aircraft. [0003] Most of the space materials currently used do not have the ability to resist atomic oxygen erosion. In order to improve the ability of space materials to resist atomic ox...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/00C09D183/07
Inventor 张蕾严川伟
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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