Method for preparing water base material for treating vacuum aluminum plated paper
A vacuum aluminized paper, water-based technology, applied in fiber raw material processing, paper, papermaking, etc., can solve the problems of using volatile organic solvents, achieve the effects of improving gloss, improving stability, and reducing costs
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Embodiment 1
[0021] In a 500ml four-necked flask with a condenser, a dropping device, a stirrer and a thermometer, add 3 grams of polyvinyl alcohol with a molecular weight of 200 and an alcoholysis degree of 80%, 207.5 grams of distilled water, and heat up to 85°C for dissolution. Cool down to 40°C, add 0.15 grams of sodium lauryl sulfate, 1.5 grams of sorbitan monooleate (Span 80), heat to 80°C, add 25 grams of 30% hydrogen peroxide, and add the following mixture dropwise Body: 98.85 grams of n-butyl acrylate, 15 grams of styrene, 15 grams of methacrylic acid, 1.5 grams of methylol acrylamide, and the addition was completed in 3 hours. Maintain the reaction at 80°C for 2 hours, cool to below 40°C, neutralize with 7.5 grams of diethanolamine, the pH is 10, and filter through a 100-mesh filter to obtain a water-based base material for vacuum aluminized paper treatment. The solid content is 39.5%, and the average The particle size is 20nm (measured using a Malven particle sizer).
Embodiment 2
[0023] In a 500ml four-necked flask with a condenser, a dropping device, a stirrer, and a thermometer, add 20 grams of polyvinyl alcohol with a molecular weight of 500 and a degree of alcoholysis of 99%, 233.32 grams of distilled water, and heat up to 85°C for dissolution. Cool down to below 40°C and set aside.
[0024] Add the dissolved polyvinyl alcohol solution into a 1000ml pressurized reactor, add 2 grams of sodium dodecylbenzenesulfonate, 0.2 grams of polyether L81, 0.02 grams of 50% tert-butyl hydroperoxide and mixed monomers. Fill with nitrogen to pressurize to 0.2MPa, and raise the temperature to 105°C. React at 105°C for 6 hours, cool to below 40°C, and drop to normal pressure. Neutralize with 0.05 gram of diethylenetriamine, pH is 7, filters through 100 mesh filter screens, obtains vacuum aluminized paper and handles water-based base material, solid content 30.2%, average particle diameter 80nm (using Malven particle size meter to measure) .
[0025] Wherein the ...
Embodiment 3
[0027] In a 500ml four-neck flask equipped with a condenser, a dropping device, an agitator, and a thermometer, add 5.25 grams of polyvinyl alcohol with a molecular weight of 10,000 and an alcoholysis degree of 85%, 148.5 grams of distilled water, and heat up to 85° C. for dissolution. Cool down to below 40°C, add 0.75 grams of sodium dialkyl-2-sulfosuccinate, 3 grams of polyoxyethylene monooleate, heat to 70°C, add 3 grams of 50% cumene hydroperoxide, drop The following mixed monomers: 118.8 grams of n-butyl methacrylate, 15 grams of methyl styrene, 3 grams of methacrylic acid, and 1.2 grams of acrylamide were added within 2 hours. Maintain the reaction at 80°C for 2 hours, cool to below 40°C, neutralize with 1.5 grams of triethanolamine, the pH is 7.5, and filter through a 100-mesh filter to obtain a water-based base material for vacuum aluminized paper treatment. The solid content is 50.0%, and the average Particle size 50nm (measured using a Malven particle sizer).
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