Water-based carbon black color paste dispersing agent and application thereof to preparation of carbon black color paste
A technology of black paste and dispersant, applied in the direction of pigment paste, etc., can solve the problems of small particle size of carbon black primary particles, large specific surface area, and difficulty in stable dispersion, and achieve excellent dispersion performance, good dispersion performance, and centrifugal stability high effect
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Embodiment 1
[0021] Using sodium carboxymethyl hemicellulose as a dispersant, weigh the dispersant and dissolve it completely in deionized water, add carbon black while stirring, disperse by ball milling for 60 minutes, and the ball milling speed is 600r / min to prepare water-based carbon black slurry.
[0022] The sodium carboxymethyl hemicellulose is obtained by modifying hemicellulose, and its degree of substitution is 1.3;
[0023] The carbon black industrial product has a particle size of 0.5-20 μm;
[0024] The portion by weight of the sodium carboxymethyl hemicellulose dispersant is 1 part;
[0025] The carbon black accounts for 10 parts by weight.
[0026] The physical properties and application performance of carbon black pulp were tested according to national standards, see Table 1.
[0027] Table 1 Physical index and application performance of carbon black slurry
[0028]
[0029]
Embodiment 2
[0031] Using sodium carboxymethyl hemicellulose as a dispersant, weigh the dispersant and dissolve it completely in deionized water, add carbon black while stirring, disperse by ball milling for 90 minutes, and the ball milling speed is 600r / min to prepare water-based carbon black slurry.
[0032] The sodium carboxymethyl hemicellulose is obtained by modifying hemicellulose, and its degree of substitution is 1.3;
[0033] The carbon black industrial product has a particle size of 0.5-20 μm;
[0034] The portion by weight of the sodium carboxymethyl hemicellulose dispersant is 2 parts;
[0035] The carbon black accounts for 15 parts by weight.
[0036] The physical properties and application performance of carbon black pulp were tested according to national standards, see Table 2.
[0037] Table 2 Physical property index and application performance of carbon black slurry
[0038]
Embodiment 3
[0040] Using sodium carboxymethyl hemicellulose as a dispersant, weigh the dispersant and dissolve it completely in deionized water, add carbon black while stirring, disperse by ball milling for 90 minutes, and the ball milling speed is 700r / min to prepare water-based carbon black slurry.
[0041] The sodium carboxymethyl hemicellulose is obtained by modifying hemicellulose, and its degree of substitution is 1.3;
[0042] The carbon black industrial product has a particle size of 0.5-20 μm;
[0043] The portion by weight of the sodium carboxymethyl hemicellulose dispersant is 3 parts;
[0044] The carbon black accounts for 20 parts by weight.
[0045] The physical properties and application performance of the carbon black paste were tested according to the national standard, see Table 3.
[0046] Table 3 Physical property index and application performance of carbon black slurry
[0047]
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