White dust suppressant and preparation method and application thereof
A dust suppressant, white technology, applied in the field of white dust suppressant and its preparation, can solve the problems of poor film-forming effect, poor hardness and toughness, inconvenient management of coal yards, etc., achieve low cost, simple construction, The effect of facilitating material stacking management
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Embodiment 1
[0037] Under the protection of dry nitrogen, 100 parts by weight of polyether diol with a molecular weight of 1000, 100 parts by weight of polyether diol with a molecular weight of 2000, and 10 parts by weight of epoxy resin E-40 were mixed, and stirred at 2m / s Heating at high speed, then adding 15 parts by weight of toluene diisocyanate and 10 parts by weight of N-methyldiethanolamine, raising the temperature to 82°C, and keeping the temperature for 3 hours; then adding 90 parts by weight of propylene glycol methyl ether acetate, 3 parts by weight of organic solvent three Ethylamine, react at 65°C for 1h, finally add 50 parts by weight of polyethylene glycol, react at 60°C for 0.5h, cool down to below 40°C, and discharge to obtain a prepolymer;
[0038] Add 90 parts by weight of titanium dioxide, 30 parts by weight of calcium carbonate, 5 parts by weight of acid group-containing copolymer Disperbyk-110, 10 parts by weight of sodium tripolyphosphate, 2 parts by weight of organi...
Embodiment 2
[0042] Under the protection of dry nitrogen, 50 parts by weight of polyether diols with a molecular weight of 1000, 150 parts by weight of polyether diols with a molecular weight of 2000, and 15 parts by weight of epoxy resin E-20 were mixed, and stirred at 3m / s Heating at a high speed, then adding 10 parts by weight of toluene diisocyanate and 5 parts by weight of N-methyldiethanolamine, heating up to 80 ° C, and keeping the temperature for 3 hours; then adding 150 parts by weight of alcohol ester twelve, 2 parts by weight of organic solvent ethylene glycol Amine, react at 60°C for 1.5h, finally add 25 parts by weight of polyethylene glycol, react at 55°C for 1h, cool down to below 40°C, and discharge to obtain a prepolymer;
[0043] Add 50 parts by weight of titanium dioxide, 80 parts by weight of clay, 9 parts by weight of acid group-containing copolymer Disperbyk-110, 10 parts by weight of sodium metasilicate, 3 parts by weight of organic solvent ethylenediamine and 480 par...
Embodiment 3
[0047]Under the protection of dry nitrogen, 50 parts by weight of polyether diols with a molecular weight of 1000, 50 parts by weight of polyether diols with a molecular weight of 2000, and 50 parts by weight of epoxy resin E-40 were mixed. Heat up at a stirring speed, then add 15 parts by weight of toluene diisocyanate and 10 parts by weight of N-methyldiethanolamine, heat up to 85°C, and keep warm for 0.5h; then add 20 parts by weight of propylene glycol methyl ether acetate, 3 parts by weight of organic Solvent triethylamine, react at 60°C for 1h, finally add 80 parts by weight of polyethylene glycol, react at 60°C for 1h, cool down to below 40°C, and discharge to obtain a prepolymer;
[0048] Add 150 parts by weight of titanium dioxide, 25 parts by weight of diatomaceous earth, 10 parts by weight of acid group-containing copolymer Disperbyk-110, 15 parts by weight of sodium metasilicate, 5 parts by weight of organic solvent triethylamine and 230 parts by weight in the prepo...
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