Method for preparing corrugated paper

[0020] A kind of preparation method of high-strength corrugated paper, its raw material composition and proportioning composition are respectively:

[0021]

[0022] Its preparation steps are:

[0023] (1) Screening: Screen the cornstarch with a fineness of at least 98 mesh;

[0024] (2) Pulping: add 800kg of water to the reaction kettle, keep the temperature at 70°C to 85°C, stir and add the screened starch, and mix evenly to obtain corn starch slurry;

[0025] (3) Thickening: Stir and add ammonium persulfate into the cornstarch slurry, mix well, heat up to 85°C-95°C, and keep the temperature for 7-15 minutes;

[0026] (4) Adding materials: melt the ABS first, then add the melted ABS to the thickened cornstarch slurry, the ratio of its volume to the thickened pulp is 1:50;

[0027] (5) Water-resistant treatment: Dissolve aluminum sulfate in water to obtain an aluminum sulfate solution with a mass fraction of 10%. Add the aluminum sulfate solution to the thickened corn pulp,