▎ 摘　　要

NOVELTY - Preparing mineral graphene imitation down cotton involves weighing 60 wt.% polyester fiber, 20 wt.% hollow fiber, and 20 wt.% low-melting fiber, and mixing with the graphene solution and melt-spun to obtain mixed fibers, transferring mixed fiber into the cotton box by vibration, comb into a mesh by a carding machine, cross-laying the mesh by a reciprocating forming machine, and laying into a net-like down cotton with the required thickness and weighing, transferring the net-like imitation down cotton into the drying room, and gradually heating to melt the low-melting fiber. The mesh pieces are connected to each other, and cooled by the cooling stick, the imitation down cotton is made. USE - Method for preparing mineral graphene imitation down cotton. ADVANTAGE - The method enables to prepare mineral graphene imitation down cotton has conductivity, and improves insulating performance of the down-like cotton. DETAILED DESCRIPTION - Preparing mineral graphene imitation down cotton involves weighing 60 wt.% polyester fiber, 20 wt.% hollow fiber, and 20 wt.% low-melting fiber, and mixing with the graphene solution and melt-spun to obtain mixed fibers, transferring mixed fiber into the cotton box by vibration, comb into a mesh by a carding machine, cross-laying the mesh by a reciprocating forming machine, and laying into a net-like down cotton with the required thickness and weighing, transferring the net-like imitation down cotton into the drying room, and gradually heating to melt the low-melting fiber. The mesh pieces are connected to each other, and cooled by the cooling stick, the imitation down cotton is made. The graphene solution is prepared by loading natural graphite and sodium nitrate into a reaction bottle and performing an ice bath, then adding sulfuric acid with a mass fraction of 98 wt.% concentrated sulfuric acid, and then adding potassium permagnate when the temperature of the mixed solution is 160-180 degrees C, incubated for 20 minutes, then added hydrogen peroxide and hydrochloric acid in sequence, and prepared the solution neutrally by titration to obtain a graphene solution.