▎ 摘　　要

NOVELTY - Preparing graphene natural cellulose fiber involves adding 1-10 wt.% sulfuric acid into a beaker containing graphite powder and stirring for 30 minutes in an ice bath environment to obtain graphite solution. The obtained graphite solution is mixed with 1-10 wt.% potassium permanganate and appropriate amount of distilled water to obtain mixture solution. The 1-10 wt.% of the obtained mixture solution is added with hydrogen peroxide and filtered and bubbles are generated and the solution is synchronized to become dark green solution. USE - Method for preparing graphene natural cellulose fiber (claimed). ADVANTAGE - The method enables to prepare graphene natural cellulose fiber, which controls the antistatic property, has heat-conducting functions and produces eco-friendly fibers. DETAILED DESCRIPTION - Preparing graphene natural cellulose fiber involves adding 1-10 wt.% sulfuric acid into a beaker containing graphite powder and stirring for 30 minutes in an ice bath environment to obtain graphite solution. The obtained graphite solution is mixed with 1-10 wt.% potassium permanganate and appropriate amount of distilled water to obtain mixture solution. The 1-10 wt.% of the obtained mixture solution is added with hydrogen peroxide and filtered and bubbles are generated and the solution is synchronized to become dark green solution. The obtained dark green solution is filtered to obtain solution filtrate. The obtained solution filtrate is washed with 5.0-10.0 wt.% hydrochloric acid to neutral, where the sulfate ions are removed then rinsed with distilled water to neutral and drying in oven at 40-60 degrees C for 24-48 hours to obtain an graphite oxide solid. The obtained graphite oxide solid is added with distilled water to obtain an oxidized graphite aqueous solution. The obtained oxidized graphite aqueous solution is subjected to drying to obtain dry oxidized graphite. The 0.06-1.0g of obtained dry oxidized graphite is added with 200ml distilled water and subjected to ultrasonic vibration treatment for 30-60 minutes to obtain 0.03-0.5 wt.% activated graphite oxide solution. The obtained activated graphite oxide solution is added and mixed with sodium borohydride and 30-60 types of cherry then subjected to ultrasonic vibration treatment to obtain an aqueous solution of sodium borohydride graphene. The obtained sodium borohydride graphene solution is filtered on filter paper and washed with 3-5 times water to remove sodium borohydride and obtain the graphene oxide aqueous solution. The obtained graphene oxide aqueous solution is mixed with pulp and oxidized methyl tourmaline to obtain graphene slurry, where the wood pulp raw material is obtained by cutting and mixed with oxidized methyl tourmaline under stirring into the expansion slot. The slot temperature is maintained at 60-80 degrees C. The obtained graphene slurry is added to vacuum condensing device for de-watering to obtain graphene. The 0.11 wt.% graphene oxide aqueous solution, and mixture of long wood pulp material and short wood pulp fiber, and the mixing ratio is 0:100-100:0 to obtain natural cellulose mixed slurry. The polymerization degree of the cellulose is 500-1500 having more than 65 wt.% alphacellulose. The oxidized methyl tourmaline concentration is 50-78%. The graphene and natural cellulose mixed slurry are mixed to obtain spinning mucilage. The obtained spinning mucilage is added into vacuum film evaporator and heated at 80-130 degrees C to remove 5 wt.% water and obtain dry spinning mucilage. The dry spinning mucilage is filtered by using continuous filter and the spinning mucilage filtrate is precipitated to solidify followed by regeneration and washing, drying, oiling and winding to obtain the graphene natural cellulose fiber.