Preparation method of solvent-free elastic metallic paint with high thermal radiation
An elastic metal and radiation technology, applied in the field of metal paint, can solve the problems of poor color and gloss retention, poor high and low temperature resistance deformation, easy cracking of metal paint, etc., and achieve good decoration, excellent elasticity, excellent weather resistance and durability staining effect
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[0037] The preparation of the elastic weather-resistant resin is to add dibutyl maleate dropwise to a four-necked flask with a dispersion, thermometer, and reflux condensation device under room temperature and nitrogen protection conditions, then add a metered linear amino-terminated polyether, and heat Heat it at 60°C for 3 hours, heat it at 80°C for 20 hours, and then discharge it when it cools down to room temperature to get an elastic weather-resistant resin. As the amine resin, it is recommended that the above-mentioned dibutyl maleate be provided by Shanghai Feida Industry and Trade Co., Ltd., and that the above-mentioned linear amino-terminated polyether is Jeffamine D2000 provided by Huntsman Company.
[0038] The preparation of composite cellulose acetate butyrate slurry is to mix 1 weight part of CAB-551-0.2 and 1 weight part of CAB-381-2, and then add 8 weight parts of elastic weather-resistant resin, in a high-speed disperser 800 Mix and disperse at ~1000 rpm for 2...
Embodiment 1
[0050] First prepare the elastic weather-resistant resin, the composite cellulose acetate butyrate slurry and the anti-yellowing elastic curing agent according to the above method.
[0051] Then get 30 parts of elastic weather-resistant resin, 5 parts of ETERFLON4101, 22 parts of composite cellulose acetate butyrate slurry, 0.6 parts of BYK-162, 0.3 parts of Tinuvin384-2, Put 0.5 parts of Tinuvin292, 5 parts of YT-803 and 7 parts of BASF-EVA3 wax into the high-speed disperser and mix and disperse for 30-40 minutes. The speed of the high-speed disperser is controlled at 600-800 rpm. Then transfer to the sand mill and grind until the fineness is ≤30um, then transfer back to the high-speed disperser, and then add 13 parts of CE-110 and 0.6 parts of EFKA3600N in the lower abrasive group in parts by weight, in the disperser 600 Mix and disperse for 30-40 minutes at ~800 r / min, and finally use 6 parts of Lexomer WA98 to adjust its viscosity and filter through a 60-mesh sieve to obta...
Embodiment 2
[0055] First prepare the elastic weather-resistant resin, the composite cellulose acetate butyrate slurry and the anti-yellowing elastic curing agent according to the above method.
[0056] Then get 35 parts of elastic weather-resistant resins, 3 parts of ETERFLON4101, 25 parts of composite cellulose acetate butyrate slurry, 0.4 parts of BYK-162, 0.3 parts of Tinuvin384-2, Put 0.7 parts of Tinuvin292, 7 parts of YT-803 and 5 parts of BASF-EVA3 wax into the high-speed disperser and mix and disperse for 30-40 minutes. The speed of the high-speed disperser is controlled at 600-800 rpm. Go to the sand mill and grind to fineness≤30um and then turn back in the high-speed disperser, transfer the upper abrasive group after grinding to the disperser, and then add 10 parts by weight in the lower abrasive group respectively. 1 part of CE-160 and 0.6 part of EFKA3288, mix and disperse for 30 to 40 minutes in a disperser at a speed of 600 to 800 rpm, and finally use 3 parts of Lexomer WA98...
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