Lotus leaf effect self cleaning fluorocarbon paint
A fluorocarbon coating, lotus leaf effect technology, applied in the coating and other directions, can solve the problems of poor air quality, dust and suspended particle content pollution, etc., to reduce the rolling angle, excellent mechanical and glossy, and increase the contact angle. Effect
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Embodiment 1
[0016] Add 400kg of silicone-modified fluororesin, 4kg of wetting and dispersing agent and 60kg of solvent into the kettle, stir well and then add 100kg of rutile titanium dioxide. Leveling agent, 2.5kg defoamer, 1.5kg wetting and dispersing agent and 12kg nanometer fumed silica, stirred for 1 hour, filtered and discharged to obtain component A.
[0017] Add 80kg of HDI trimer curing agent and 20kg of solvent into the kettle, stir evenly, and filter out the material to obtain component B.
[0018] When in use, it is used after being uniformly stirred according to parts by weight of component A:component B=5:1.
[0019] The lotus leaf effect self-cleaning fluorocarbon coating film obtained in Example 1 has a water contact angle of 102°, no change in aging resistance for 5000 hours, and no change in salt spray resistance for 1000 hours.
Embodiment 2
[0021] Add 400kg of silicone modified fluororesin, 30kg of solvent, 1kg of leveling agent, 1kg of defoamer, 2kg of wetting and dispersing agent and 32kg of nano fumed silica into the kettle, stir for 2 hours, and filter out the material to obtain component A .
[0022] Add 40kg of HDI trimer curing agent and 10kg of solvent into the kettle, stir evenly, and filter out the material to obtain component B.
[0023] When in use, it is used after being uniformly stirred according to parts by weight of component A:component B=5:1.
[0024] The lotus leaf effect self-cleaning fluorocarbon coating film obtained in Example 2 has a water contact angle of 125°, no change in aging resistance for 5000 hours, and no change in salt spray resistance for 1000 hours.
Embodiment 3
[0026] Add 400kg of silicone modified fluororesin, 10kg of wetting and dispersing agent and 90kg of solvent into the kettle, and then add 80kg of rutile titanium dioxide, 25kg of kaolin, 10kg of talcum powder, and 5kg of carbon black before pre-dispersing, then sand mill and grind When the fineness is ≤25μm, add 6kg of leveling agent, 3.5kg of defoamer, 1.5kg of wetting and dispersing agent and 24kg of nano fumed silica, stir for 2 hours at medium intensity, and filter out the material to obtain component A.
[0027] Add 120kg of IPDI trimer curing agent and 30kg of solvent into the kettle, stir evenly, filter and discharge to obtain component B.
[0028] When in use, it is used after being uniformly stirred according to parts by weight of component A:component B=5:1.
[0029] The lotus leaf effect self-cleaning fluorocarbon coating film obtained in Example 3 has a water contact angle of 113°, no change in aging resistance for 5000 hours, and no change in salt spray resistance...
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