A kind of environment-friendly anticorrosion coating and preparation method thereof
It is an anti-corrosion coating and environment-friendly technology, which is applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc. It can solve the problems of anti-corrosion and anti-fouling performance reduction, reduction, nano-filler easy to agglomerate nano-effects, etc., and achieve high hydrophobicity Performance and effect on stain resistance
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Embodiment 1
[0021] The specific preparation process of titanium-based unsaturated polymer emulsion is as follows:
[0022] Step 1: Mix glycerol and isopropanol according to the mass ratio of 1:0.5 to prepare a mixed solvent, then add 100mL of the mixed solvent into the reaction kettle, heat up to 90-95°C to reflux, and then add 30g to the reaction vessel Tetrabutyl titanate and 26.3 g of triethanolamine were refluxed for 10-12 hours at a constant temperature, and then evaporated to remove the solvent to obtain a powder product;
[0023] Step 2: Add 9.2g of the powder product prepared in step 1 into 120mL of diethyl ether, stir and dissolve, raise the temperature to reflux at 230-240°C, and add 2.1g of p-toluenesulfonic acid to it, stir for 10-15min, then add 10g of maleic anhydride , constant temperature reflux reaction for 10-12h;
[0024] Step 3: Put the product into a high-speed shear emulsification tank, add 18mL polyoxyethylene sorbitan fatty acid ester and 14.4g SP-80 to it at the ...
Embodiment 2
[0026]The specific preparation process of the slow-release filler is as follows: Add 1g of zinc acetate dihydrate and 30mL of absolute ethanol into the reaction vessel at the same time, heat up to 50-55°C for reflux reaction for 40-50min, add the obtained product into the beaker, and pour it into the beaker at the same time Add 4g of dried diatomaceous earth, ultrasonically disperse evenly, then add 0.13g lithium hydroxide to it, ultrasonically react for 30-40min, then filter, and put the obtained solid in a muffle furnace at a speed of 5°C / min Raise the temperature to 450°C and bake for 30-32 hours to obtain the slow-release filler.
Embodiment 3
[0028] The specific preparation process of environmentally friendly anti-corrosion coatings is as follows:
[0029] 450g of the titanium-based unsaturated polymer emulsion prepared in Example 1 and 650g of ethanol are added to the reaction vessel simultaneously, and nitrogen gas is passed thereinto for 20-30min simultaneously, then 160g of benzoyl peroxide is added to the reaction vessel, and the temperature is raised to 80-90°C, then add 260g of allyltrimethoxysilane dropwise to it, and react for 1-1.5h after the dropwise addition is complete, then raise the temperature to 120-130°C and stir for 2-3h, cool to room temperature, and the obtained The product solution was discharged, then poured into the stirred tank, and then 60 g of the slow-release filler prepared in Example 2, 10 g of leveling agent, 10 g of defoamer and 2 g of thickener were successively added to the stirred tank, and mixed and stirred for 20-30 min. Get environmentally friendly anti-corrosion coatings.
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