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    Home > Coatings News > Paints and Coatings Market > Coating technology: water based infrared laser composite stealth coating

    Coating technology: water based infrared laser composite stealth coating

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    It is suggested that the coating made of water-based infrared laser composite stealth coating has low infrared emissivity, low laser reflectivity and good infrared stealth and laser stealth performance

    Coating on the target carrier can make the target have the ability of infrared and laser compound stealth and achieve the purpose of infrared laser compound stealth

    The formulation of water-based infrared laser composite camouflage coating has a broad application prospect and is of great significance for national defense construction

    The preparation steps of water-based infrared laser composite stealth coating are as follows: (1) Preparation of adhesive 5g polycarbonate glycol is put into a vacuum drying oven at a temperature of Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different

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    In private rooms, most of us choose according to our own personality, personal hobbies and living habits

    The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Coating home news: the coating made of water-based infrared laser composite stealth coating has low infrared emissivity, low laser reflectivity, and good infrared stealth and laser stealth performance

    Coating on the target carrier can make the target have the ability of infrared and laser compound stealth and achieve the purpose of infrared laser compound stealth

    The formulation of water-based infrared laser composite camouflage coating has a broad application prospect and is of great significance for national defense construction

    The preparation steps of water-based infrared ‑ laser composite camouflage coating are as follows: (1) prepare 5g polycarbonate glycol as adhesive, put it into vacuum drying oven, dehydrate for 1H under the condition of temperature 130 ℃ and pressure 0.1MPa, and then transfer it to the machine Put agitator, thermometer, nitrogen inlet and reflux condenser into oil bath pot, adjust oil bath temperature to 85 ℃, add 2G isophorone diisocyanate, stir and mix for 1H; add 0.42g dihydroxymethylpropionic acid for 1.5h; reduce oil bath temperature to 65 ℃, add 30ml acetone, adjust viscosity, react for 2h, reduce oil bath temperature to 65 ℃, add 30ml acetone dissolved in 30ml 0.1g of trimethylolpropane was reacted for 1h to reduce the temperature of oil bath to room temperature; 0.31g of salt agent triethylamine was added to react for 1h to pour into other containers; at 2000 R · min ‑ 1, 30ml of distilled water was added while stirring, emulsified for 0.5h, and then 0.1g of diethanolamine was added, Under the condition of rotation speed of 1000 R

    Min 1, 0.5 h was obtained, and the white emulsion of Pan blue was obtained

    At room temperature, 1H was used to remove acetone from the solvent, and the binder for composite stealth coating was prepared

    (2) the preparation of filler was mixed with 1g flake aluminum powder, 0.05g six sodium hypophosphite and 30ml absolute ethanol, ultrasonic dispersion, ultrasonic power 250W, dispersion 30

    The dispersions were mixed with 5 g of chromium chloride hexahydrate dissolved in 30 ml of anhydrous ethanol solution at 500 R · min ‑ 1 Add 25 ml of 14% ammonia solution slowly at the stirring speed of 1.5 h, react at 40 ℃ for 3 h, cool to room temperature, filter by suction, and obtain the precursor of massive chromium dioxide coated flake aluminum composite particles; dry in vacuum for 12 h at 100 ℃; put the dried precursor into muffle furnace and calcine at 400 ℃ for 3 h h

    Cool to room temperature, grind to obtain the dark green chromium dioxide coated flake aluminum composite particle powder, pass through the 200 mesh screen; get the filler; (3) preparation of water-based infrared ‑ laser composite stealth coating, mix 0.5-3.0g chromium dioxide coated flake aluminum composite particle powder, 0.05-0.15g dispersant and 50ml water, use the high-speed disperser at the speed of 5000 R · min Under the condition of 1, disperse 30min, settle to clarify, then remove the upper layer of water, then add 11.4g binder, 0.06g leveling agent, 0.03g defoamer and 0.0025g anti-aging agent to mix evenly, grind, fineness to reach 80 m; add 0~0.1g thickener to adjust viscosity and filter, then get infrared laser hybrid camouflage coating; The dispersant in the preparation process is sodium six phosphate, the anti-aging agent is antioxidant SD 1688, leveling agent is HP 855 polyether modified polysiloxane, defoamer is CP 02 02 silane high efficiency defoamer, thickening agent is sodium carboxymethyl cellulose

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