Carbon-black-based water-based paint as well as preparation method and application thereof
A water-based, carbon black-based technology, applied in paper coatings, hyaluronic acid coatings, chitin polysaccharide coatings, etc., can solve the problems of prominent environmental pollution, complex production equipment, high production costs, etc., to achieve improved opacity and high production efficiency , The effect of low production energy consumption
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Embodiment 1
[0019] (1) Stir 384g of distilled water and 3g of sodium hexametaphosphate with a high-speed disperser at a speed of 1000r / min for 10min to dissolve the dispersant.
[0020] (2) Add 55g of kaolin, 20g of heavy calcium carbonate, 25g of carbon black in sequence, and add 0.5g of polyether defoamer, and continue stirring at a speed of 4000r / min for 15min to fully disperse the pigment.
[0021] (3) After the pigment is dispersed, add 20g of modified starch, 5g of carboxymethyl cellulose and 1g of modified chitosan, stir at a speed of 2000r / min for 5min, then add a certain amount of NaOH and stir at a low speed of 200r / min for 5min , adjust the pH of the solution to 10. After filtering, the finished mixture is obtained.
Embodiment 2
[0023] (1) Stir 384g of distilled water and 3g of sodium hexametaphosphate with a high-speed disperser at a speed of 1000r / min for 10min to dissolve the dispersant.
[0024] (2) Add 60g of kaolin, 20g of heavy calcium carbonate, 20g of carbon black in sequence, and add 0.5g of polyether defoamer, and continue stirring at a speed of 4000r / min for 15min to fully disperse the pigment.
[0025] (3) After the pigment is dispersed, add 20g of modified starch, 5g of carboxymethyl cellulose and 1g of modified chitosan, stir at a speed of 2000r / min for 5min, then add a certain amount of NaOH and stir at a low speed of 200r / min for 5min , adjust the pH of the solution to 10. After filtering, the finished mixture is obtained.
Embodiment 3
[0027] (1) Stir 384g of distilled water and 3g of sodium hexametaphosphate with a high-speed disperser at a speed of 1000r / min for 10min to dissolve the dispersant.
[0028] (2) Add 65g of kaolin, 20g of heavy calcium carbonate, 15g of carbon black, and 0.5g of polyether defoamer in sequence, and continue stirring at a speed of 4000r / min for 15min to fully disperse the pigment.
[0029] (3) After the pigment is dispersed, add 20g of modified starch, 5g of carboxymethyl cellulose and 1g of modified chitosan, stir at a speed of 2000r / min for 5min, then add a certain amount of NaOH and stir at a low speed of 200r / min for 5min , adjust the pH of the solution to 10. After filtering, the finished mixture is obtained.
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