▎ 摘　　要

NOVELTY - Vacuum polyethylene composite nano-graphene material comprises e.g. 25-30 pts. wt. acetate fiber bundle, 25-30 pts. wt. alginic acid, 5-10 pts. wt. hydrochloric acid, 20-25 pts. wt. ethylene-vinyl acetate copolymer, 8-10 pts. wt. high polyethylene, 5-8 pts. wt. nano active agent, 8-10 pts. wt. foamed alumina, 5-8 pts. wt. nano-cerium oxide powder, 15-20 pts. wt. polylactic acid chitosan, 10-15 pts. wt. nano graphene, 4-7 pts. wt. aluminum hydroxy compound, 2-4 pts. wt. nano-alumina, 10-15 pts. wt. mesh node soil, 8-12 pts. wt. sea mud and 5-10 pts. wt. polyvinyl acetate. USE - Used as vacuum polyethylene composite nano-graphene material. ADVANTAGE - The nano-graphene material is environmentally friendly, absorbs point negatively charged bacteria, thus has sterilization function; improves the porosity and specific surface area of composite absorbing film, thus increases efficacy. DETAILED DESCRIPTION - Vacuum polyethylene composite nano-graphene material comprises 25-30 pts. wt. acetate fiber bundle, 25-30 pts. wt. alginic acid, 5-10 pts. wt. hydrochloric acid, 20-25 pts. wt. ethylene-vinyl acetate copolymer, 8-10 pts. wt. high polyethylene, 5-8 pts. wt. nano active agent, 8-10 pts. wt. foamed alumina, 5-8 pts. wt. nano-cerium oxide powder, 15-20 pts. wt. polylactic acid chitosan, 10-15 pts. wt. nano graphene, 4-7 pts. wt. aluminum hydroxy compound, 2-4 pts. wt. nano-alumina, 10-15 pts. wt. mesh node soil, 8-12 pts. wt. sea mud, 5-10 pts. wt. polyvinyl acetate, 4-6 pts. wt. tung oil, 3-6 pts. wt. waste syrup, 1-2 pts. wt. sodium lauroyl sarcosinate, 3-5 pts. wt. neoabieslactone gel, 4-8 pts. wt. asbestos wool, 8-10 pts. wt. additive and water, where nano active agent is mixture of magnesium oxide, aluminum oxide, silicon nitride and boron nitride in 1:2:3:1 weight ratio, preparing additive includes dispersing magnesium-aluminum hydrotalcite in de-carbon dioxide deionized water to make slurry, dissolving excess sodium dihydrogen phosphate dehydrate in water, slowly pouring the solution into the slurry, heating and stirring, adjusting the pH to 3.7 with acetic acid and reaction was carried out at reflux temperature for 3 hours, cooling naturally, washing the product with de-carbon dioxide deionized water and filtering until the filtrate had a pH of 7 and drying to obtain; the preparation method the nano graphene includes adding graphite into concentrated sulfuric acid, stirring at -20 degrees C to -10 degrees C for 5-12 hours, stirring at 0-5 degrees C for 5-12 hours, adding potassium permanganate, carrying out oxidation reaction to obtain oxidized graphite solution, into obtained graphite oxide solution directly adding cetrimonium bromide, flocculating cetrimonium bromide, modifying graphite oxide reaction to obtain modified graphite oxide solution, filtering, washing the modified graphite oxide solution, vacuum drying at 50 degrees C for 24 hours to obtain nano graphene. An INDEPENDENT CLAIM is also included for preparing vacuum polyethylene composite nano-graphene material, comprising (i) taking alginic acid and hydrochloric acid, adding 6-10 times total weight deionized water, heating to 100-120 degrees C, stirring uniformly, adding acetate fiber bundles, maintaining heating temperature with continuously stirring for 20-30 minutes uniformly to obtain alginic acid fiber solution, stirring the mixture, adding 3-5% of nano silicone gel in the stirring process, uniformly mixing alginate fiber solution, adding mixed material, maintaining temperature at 90-100 degrees C, stirring uniformly to obtain substrate, adding the stirred material into the mold, vibrating, grooving, steam at normal temperature, stripping, steam-curing to obtain light wall material, where steam high pressure curing process, transferring resulting solid to the maintenance device, maintaining for 2 hours under the condition of 170-180?C and 0.75 MPa, (ii) demolding for 2 days, watering and maintaining for 7 days, hydrating the concrete, polylactic acid chitosan, nano graphene, quickly stirring for 5-6 hours to stable transparent solution to form uniform under magnetic stirring, loading graphene electro-spray forming high temperature spray between layer and layer and finishing the prefabrication process of the outer wall.