Primer-topcoat combined anti-corrosion paint suitable for various base materials and preparation method thereof
An anti-corrosion paint and bottom surface technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, coatings, etc., can solve the problem of lack of adhesion, and achieve the effects of excellent adhesion, simple operation and cost saving.
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[0044] The specific preparation method of the bottom-surface-integrated anticorrosion paint suitable for various substrates comprises the following steps:
[0045] (1) Add solvent into the container containing low-hydroxyl acrylic resin, stir at a speed of 800-1000r / min, so that the low-hydroxyl acrylic resin is evenly dispersed in the solvent;
[0046] (2) During the stirring process, add additives, organic bentonite and hydrophobic fumed silica, and stir for 10 to 15 minutes;
[0047] (3) Add pigments and fillers, increase the stirring speed to 1200-1500r / min, and place it in an environment lower than 50 degrees Celsius, and stir for 15-20 minutes;
[0048] (4) Use a sand mill to grind the stirred mixture obtained in step (3), and finally add a leveling agent and stir for 15 to 25 minutes at a speed of 800 to 1000 r / min;
[0049] (5) Add solvent, adjust viscosity to 90±5Ku / 30°C, filter out impurities, and obtain component A;
[0050](6) Mix the hexamethylene diisocyanate t...
Embodiment 1
[0055] A bottom-surface integrated anti-corrosion paint suitable for various substrates, which is composed of component A and component B in a ratio of 7:1 by weight, wherein:
[0056] Part A contains the following ingredients, expressed in weight percentage
[0057]
[0058]
[0059] Part B contains the following ingredients, expressed in weight percentage
[0060] Hexamethylene diisocyanate trimer 49.20%
[0061] Solvent 50.80%.
Embodiment 2
[0063] A bottom-surface integrated anti-corrosion paint suitable for various substrates, which is composed of component A and component B in a ratio of 10:1 by weight, wherein:
[0064] Part A contains the following ingredients, expressed in weight percentage
[0065]
[0066] Part B contains the following ingredients, expressed in weight percentage
[0067] Hexamethylene diisocyanate trimer 51.77%
[0068] Solvent 48.23%
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