A kind of ethanol-resistant aqueous Gris nano color essence
An ethanol-resistant and nano-resistant technology, used in inks, pigment pastes, household appliances, etc., can solve the problems of uneven coloring, poor compatibility, poor stability of easy precipitation, etc., and achieve excellent tinting strength and excellent alkali resistance. Effect
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Embodiment 1
[0030] A kind of sulfonic acid type anionic block copolymer dispersant A, its step is as follows:
[0031] a) According to the weight ratio of the formula, add dimethyl sulfoxide, hydroxybutyl acrylate, and 1,3-propane sultone into the reaction kettle in sequence, start stirring to dissolve evenly, heat to 65°C for 7 hours, and cool to Add methanol to dissolve at 40°C, then add acetone to precipitate, suction filter the precipitate, then dissolve with methanol, precipitate with acetone, and suction filter, repeat 2 to 3 times to obtain vinyl monomer I containing sodium sulfonate group; , the molar ratio of hydroxybutyl acrylate to 1,3-propane sultone is 1.3:1;
[0032] b), at N 2 In the protected reaction kettle, add 15.0 parts of maleic anhydride, 0.8 parts of diethyldithiocarbamate quaternary ammonium salt, and 32.0 parts of ethanol in sequence. After stirring and dissolving, heat up to 80°C and evenly add 10.0 parts of One part of ethanol solution containing 10% azodicyan...
Embodiment 2
[0034]A kind of sulfonic acid type anionic block copolymer dispersant B, its step is as follows:
[0035] a) According to the weight ratio of the formula, add butanone, hydroxyethyl methacrylate, and 1,4-butane sultone into the reaction kettle in sequence, start stirring and dissolving evenly, heat to 90°C for 6 hours, and cool to 40°C Add methanol to dissolve at ℃, then add acetone to precipitate, filter the precipitate, dissolve with methanol, precipitate with acetone, and filter with suction, repeat 2 to 3 times to obtain vinyl monomer I containing sodium sulfonate group; among them, The molar ratio of the hydroxyethyl methacrylate to 1,4-butane sultone is 1:1;
[0036] b), at N 2 In the protected reactor, add 20.0 parts of maleic anhydride, 0.5 parts of α-dithiobenzyl p-benzylidene pyridinium chloride, and 30.0 parts of ethanol in sequence, stir and dissolve, then heat up to 90°C. Evenly add 12.0 parts of ethanol solution containing 10% azobisisobutyronitrile dropwise, t...
Embodiment 3
[0038] A kind of sulfonic acid type anionic block copolymer dispersant C, its steps are as follows:
[0039] a) According to the weight ratio of the formula, add dimethylformamide, hydroxypropyl methacrylate, and 3-methyl-1,3-propane sultone into the reaction kettle in sequence, start stirring to dissolve evenly, and heat to React at 70°C for 6 hours, cool to 40°C and add methanol to dissolve, then add acetone to precipitate, filter the precipitate, then dissolve with methanol, precipitate with acetone, and filter with suction, repeat 2 to 3 times to obtain sodium sulfonate group Vinyl monomer I; wherein, the molar ratio of hydroxypropyl methacrylate to 3-methyl-1,3-propane sultone is 1.2:1;
[0040] b), at N 2 In the protected reaction kettle, add 20.0 parts of maleic anhydride, 2.0 parts of dithiophenylacetic acid, and 40.0 parts of ethanol in sequence. After stirring and dissolving, heat up to 100°C and evenly add 15.0 parts of 10% azobisisobutyl The ethanol solution of n...
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