Paper coating water-based emulsion and preparation method and applications thereof
A water-based emulsion and coating technology, which is applied in the direction of paper coating, coating, papermaking, etc., can solve the problems of unusable packaging and poor barrier properties of coating materials, achieve good stability, reduce residual monomers, and improve effect of effect
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Embodiment 1
[0021] 1. Raw material preparation:
[0022] 1) Mixed monomer preparation: mix 92.5 kg of vinylidene chloride, 6 kg of acrylonitrile, 1.3 kg of methyl methacrylate, and 0.2 kg of methacrylic acid to obtain a mixed monomer;
[0023] 2) Initiator preparation: dissolve 160 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 160 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;
[0024] 3) Mixed emulsifier preparation: Mix 1.6kg of sodium dodecylsulfonate, 780g of 2A-1 emulsifier and COPS-11.4kg and add water to 20kg to prepare a mixed emulsifier;
[0025] 2. Seed aggregation:
[0026] Add 50kg of water to the reaction kettle, add 100g of sodium dodecylbenzenesulfonate, 280g of MA-80, and 30g of ammonium acetate, seal the kettle, replace the gas three times, vacuumize, inhale mixed monomer with a formula amount of 3%, and cold disperse 0.5h, he...
Embodiment 2
[0033] 1. Raw material preparation:
[0034] 1) Mixed monomer preparation: mix 111 kg of vinylidene chloride, 7.2 kg of acrylonitrile, 1.56 kg of methyl methacrylate, and 0.24 kg of methacrylic acid to obtain a mixed monomer;
[0035] 2) Initiator preparation: dissolve 240 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 240 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;
[0036] 3) Mixed emulsifier preparation: mix 1.8kg of sodium dodecyl sulfonate, 780g of 2A-1 emulsifier and COPS-12kg and add water to 20Kg to prepare a mixed emulsifier;
[0037] 2. Seed aggregation:
[0038] Add 30kg of water to the reaction kettle, add 130g of sodium dodecylbenzenesulfonate, 300g of MA-80, and 30g of ammonium acetate, seal the kettle, replace the gas three times, vacuumize, inhale the mixed monomer with a formula amount of 3%, and cold disperse 0....
Embodiment 3
[0042] 1. Raw material preparation:
[0043] 1) Mixed monomer preparation: mix 92.5 kg of vinylidene chloride, 6 kg of acrylonitrile, 1.3 kg of ethyl methacrylate, and 0.2 kg of methacrylic acid to obtain a mixed monomer;
[0044] 2) Initiator preparation: dissolve 160 g of tert-butyl hydroperoxide in 8 kg of water to obtain an aqueous solution of tert-butyl hydroperoxide, and dissolve 160 g of sodium formaldehyde sulfoxylate in 8 kg of water to obtain an aqueous solution of sodium formaldehyde sulfoxylate;
[0045] 3) Mixed emulsifier preparation: mix 1.6kg of sodium dodecylbenzenesulfonate, 780g of 2A-1 emulsifier and 1.4kg of sodium ethylene sulfonate and add water to 20kg to prepare a mixed emulsifier;
[0046] 2. Seed aggregation:
[0047]Add 50kg of water to the reaction kettle, add 100g of sodium dodecylbenzenesulfonate, 280g of MA-80, and 30g of ammonium acetate, seal the kettle, replace the gas three times, vacuumize, inhale mixed monomer with a formula amount of 3%,...
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