Aqueous blackboard paint
A blackboard paint, water-based technology, applied in the field of blackboard paint, can solve the problem of solvent release and other problems, achieve the effects of high density, improve the compactness and salt spray resistance of the paint film, and the shape is complete and uniform
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Embodiment 1
[0045] Water-based blackboard paint, comprising each component of following parts by weight:
[0046] Water 260.0, dispersant 1.0, wetting agent 1.5, defoamer 1.0, pigment 200.0, filler 120.0, acrylic emulsion 200.0, coalescent 15.0, thickener 3.0;
[0047] Described film-forming aid is texnol; Described thickener is the acrylic acid thickener and organic bentonite of any proportion;
[0048] To prepare, follow these steps:
[0049] (1) First add water into the reaction kettle, then add wetting agent, dispersant, and defoamer in sequence at a stirring speed of 100 rpm, and continue stirring for 30 minutes;
[0050] (2) Add pigments and fillers while stirring, speed up the stirring speed to 600 rpm, and disperse at high speed for 60 minutes;
[0051] (3) Then add the emulsion, adjust the speed to 900 rpm, and stop stirring after 30 minutes;
[0052] (4) Pump the material into the grinder for grinding and dispersing, grind until the fineness reaches below 45 μm, and stop the ...
Embodiment 2
[0061] Water-based blackboard paint, comprising each component of following parts by weight:
[0062] Water 260.0, dispersant 1.0, wetting agent 1.5, defoamer 1.0, pigment 200.0, filler 120.0, water-based epoxy emulsion 200.0, film-forming aid 15.0, thickener 3.0;
[0063] Described film-forming aid is ethylene glycol butyl ether; Described thickener is acrylic acid thickener;
[0064] To prepare, follow these steps:
[0065] (1) First add water into the reaction kettle, then add wetting agent, dispersant, and defoamer in sequence at a stirring speed of 200 rpm, and continue stirring for 35 minutes;
[0066] (2) Add pigments and fillers while stirring, speed up the stirring speed to 800 rpm, and disperse at high speed for 80 minutes;
[0067] (3) Then add the emulsion, adjust the speed to 1000 rpm, and stop stirring after 30 minutes;
[0068] (4) Pump the material into the grinder for grinding and dispersing, grind until the fineness reaches below 45 μm, and stop the machin...
Embodiment 3
[0077] Water-based blackboard paint, comprising each component of following parts by weight:
[0078] Water 260.0, dispersant 1.0, wetting agent 1.5, defoamer 1.0, pigment 200.0, filler 120.0, water-based epoxy emulsion 200.0, film-forming aid 15.0, thickener 3.0;
[0079] The film-forming aid is propylene glycol monomethyl ether and dipropylene glycol methyl ether in any proportion, and the thickener is an acrylic acid thickener.
[0080] (1) Add water into the reaction kettle first, then add wetting agent, dispersant, and defoamer in sequence at a stirring speed of 300 rpm, and continue stirring for 40 minutes;
[0081] (2) Add pigments and fillers while stirring, speed up the stirring speed to 500 rpm, and disperse at high speed for 90 hours;
[0082] (3) Then add the emulsion, adjust the speed to 8000 rpm, and stop stirring after 30 minutes;
[0083] (4) Pump the material into the grinder for grinding and dispersing, grind until the fineness reaches below 45 μm, and stop...
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