Water-based nano anti-fingerprint coating
An anti-fingerprint and nano-filler technology, which is applied in the direction of epoxy resin coating, polyurea/polyurethane coating, coating, etc., can solve the problems of destroying the mirror effect of stainless steel surface, reducing the quality of products, and easy to be contaminated with dust, so as to improve anti-fingerprint Performance, enhanced tensile strength and shear strength, good anti-fingerprint effect
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Embodiment 1
[0018] A water-based nano anti-fingerprint coating, made of the following raw materials in parts by weight: 45 parts of modified epoxy resin, 45 parts of modified polyurethane resin, 100 parts of water, 8 parts of dipropylene glycol butyl ether, 4 parts of carbon nanotubes, 10 parts of nano silicon dioxide, 10 parts of silane coupling agent KH-550.
[0019] The preparation method of the modified epoxy resin: in parts by mass, add 38 parts of vinyltriethoxysilane and 6 parts of ethyl acetate into a reaction vessel; heat up to 80°C under stirring, and dropwise add 30 parts of hydrochloric acid aqueous solution with a mass fraction of 15%, the dropping time is controlled at 1.5h. After the dropping is completed, keep the temperature at 85°C for 2h, then distill under reduced pressure for 0.6h, drop to room temperature, and filter to obtain ethoxy Silicone oligomer with a content of 8% and a solid content greater than 80%; then 6 parts of ethyl acetate, 2 parts of dibutyltin dilau...
Embodiment 2
[0025] A water-based nano anti-fingerprint coating, made of the following raw materials in parts by weight: 35 parts of modified epoxy resin, 35 parts of modified polyurethane resin, 80 parts of water, 6 parts of propylene glycol methyl ether acetate, and 3 parts of carbon nanotubes , 6 parts of nano titanium dioxide, 6 parts of silane coupling agent KH-570.
[0026] The preparation method of the modified epoxy resin: in parts by mass, add 36 parts of vinyltriethoxysilane and 6 parts of ethyl acetate into a reaction vessel; heat up to 78°C under stirring, and dropwise add 26 parts of hydrochloric acid aqueous solution with a mass fraction of 15%, the dropping time is controlled at 1h, after the dropping is completed, keep the temperature at 82°C for 1.5h, then distill under reduced pressure for 0.4h, drop to room temperature, filter to obtain ethoxy Silicone oligomer with a content of 6% and a solid content greater than 80%; then 6 parts of ethyl acetate, 1 part of dibutyltin ...
Embodiment 3
[0032] A water-based nano anti-fingerprint coating, made of the following raw materials in parts by weight: 55 parts of modified epoxy resin, 55 parts of modified polyurethane resin, 120 parts of water, 12 parts of vinylene carbonate, 5 parts of carbon nanotubes, 15 parts of nano diatomite, 15 parts of silane coupling agent KH-792.
[0033] The preparation method of the modified epoxy resin: in parts by mass, add 40 parts of vinyltriethoxysilane and 8 parts of ethyl acetate into the reaction vessel; heat up to 85°C under stirring, and add dropwise 35 parts of hydrochloric acid aqueous solution with a mass fraction of 15%, the dropping time is controlled at 2 hours, after the dropping is completed, keep the temperature at 90°C for 2.5 hours, then distill under reduced pressure for 0.7 hours, drop to room temperature, and filter to obtain ethoxy Silicone oligomer with a content of 10% and a solid content greater than 80%; then 8 parts of ethyl acetate, 3 parts of dibutyltin dila...
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