▎ 摘　　要

NOVELTY - A graphene composite material comprises 10-50 pts. wt. natural flaky graphite sheet, 200-1000 pts. wt. 95% concentrated sulfuric acid, 4-20 pts. wt. sodium nitrate, 5-25 pts. wt. potassium chlorate solid, 10-50 pts. wt. 75% concentrated sulfuric acid solution, 10-50 pts. wt. 80% manganese dioxide, 100-500 pts. wt. 70% hydrochloric acid solution, 5-25 pts. wt. silica solid, 5-25 pts. wt. polyvinyl alcohol and 10-50 pts. wt. acrylamide solution. USE - The graphene composite material is useful in material science, micro-nano processing, energy, biomedicine and drug delivery applications. ADVANTAGE - The graphene composite material has excellent durability, stability, and uniformity, and is convenient to use. The outermost layer of the graphene composite material can be made of silica gel, and the establishment of durable and elongated network makes the performance of the graphene polymer composite material much higher than that of graphene composite material prepared using pure graphite. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation method of new-type graphene composite mateA graphene composite material comprises 10-50 pts. wt. natural flaky graphite sheet, 200-1000 pts. wt. 95% concentrated sulfuric acid, 4-20 pts. wt. sodium nitrate, 5-25 pts. wt. potassium chlorate solid, 10-50 pts. wt. 75% concentrated sulfuric acid solution, 10-50 pts. wt. 80% manganese dioxide, 100-500 pts. wt. 70% hydrochloric acid solution, 5-25 pts. wt. silica solid, 5-25 pts. wt. polyvinyl alcohol and 10-50 pts. wt. acrylamide ((C3H5NO)n) solution. n = not defined. N.B: n is not defined. An INDEPENDENT CLAIM is included for preparation of the graphene composite material, which involves (S1) performing reaction in a reactor in a freezing environment, and placing the reactor in a -4℃ environment, (S2) pouring 200 pts. wt. 95% concentrated sulfuric acid into the reactor, and stirring using a stirrer, (S3) measuring the temperature, and pouring 10 pts. wt. natural flaky graphite sheet to the reactor when the temperature is lower than -3℃, (S4) adding 4 pts. wt. sodium nitrate and 5 pts. wt. potassium chlorate solid, stirring, and controlling the temperature at 7℃, (S5) adding 10 pts. wt. 75% concentrated sulfuric acid solution, distilling, adding 10 pts. wt. 80% manganese dioxide, heating to 30℃ and centrifuging, (S6) adding 100 pts. wt. 70% hydrochloric acid and 5 pts. wt. silica, stirring for 20 minutes, and centrifuging, (S7) separating graphene solution, filtering, adding 5 pts. wt. polyvinyl alcohol and 7 pts. wt. acrylamide solution and stirring, and (S8) drying the solution at a high temperature.