The invention discloses a method for producing a
polymer nano-stone-based
paperboard, comprising the following steps: mixing 50-70 parts of
calcium carbonate, 3-10 parts of quicklime, 3-5 parts of
talc, 3-5 parts of
polyethylene, 4-6 parts of
polyethylene wax, 1-2 parts of
zinc stearate, 0.5-2 parts of a composite
coupling agent, 0.5-1 parts of a dispersant, 1.5-2 parts of
sodium thiosulfate, 1-1.5 parts of
antimony trioxide, 0.5-1 parts of
ammonium phosphate, and 10-15 parts of a
magnesium hydroxide emulsion suspension, modifying the mixture, plasticizing the mixture, and
casting the mixture into paper for producing
paperboard; and adjusting the mixture. The outer layer paper, corrugated paper and
cushion paper used for producing paper are produced in the proportion of
polyethylene,
polyethylene wax,
calcium carbonate and quicklime and are then put into use. The outer layer paper, corrugated paper and
cushion paper are input to the front end of the board
machine for sealing, preheating and
softening, and then formed by the board
machine and finally transported or automatically
cut into suitable shapes by external
transmission equipment and
cutting equipment, which effectively solves the problems of complicated production process and high material cost caused by the existing method of hot melting or gluing auxiliary materials for the production of nano-scale stone-based board.