▎ 摘　　要

NOVELTY - A steering wheel protective layer polymer sheath material comprises stearic acid, polypropylene glycol, graphene oxide, hydrazine hydrate, poly- epsilon -caprolactone diol, octamethylcyclotetrasiloxane, trifluoropropyl methyl cyclotrisiloxane, tetramethyl disiloxane, 95-98% sulfuric acid, toluene diisocyanate, butyl acetate, chloro-1-allyl-3-methylimidazole, polyvinylpyrrolidone, polyacrylate, acrylamide, diatomite, and boric acid. USE - Steering wheel protective layer polymer sheath material. ADVANTAGE - The material has improved compatibility and stability. DETAILED DESCRIPTION - A steering wheel protective layer polymer sheath material comprises 1-2 pts. wt. stearic acid, 4-7 pts. wt. polypropylene glycol, 10-13 pts. wt. graphene oxide, 20-30 pts. wt. hydrazine hydrate, 170-180 pts. wt. poly- epsilon -caprolactone diol, 5-6 pts. wt. octamethylcyclotetrasiloxane, 2.5-3 pts. wt. trifluoropropyl methyl cyclotrisiloxane, 0.8-1 pt. wt. tetramethyl disiloxane, 0.1-0.15 pt. wt. 95-98% sulfuric acid, 120-130 pts. wt. toluene diisocyanate, 10-14 pts. wt. butyl acetate, 0.2-0.3 pt. wt. chloro-1-allyl-3-methylimidazole, 3-5 pts. wt. polyvinylpyrrolidone, 7-10 pts. wt. polyacrylate, 0.5-1 pt. wt. acrylamide, 6-9 pts. wt. diatomite, and 0.1-0.13 pt. wt. boric acid. An INDEPENDENT CLAIM is included for preparation of sheath material comprising: (A) adding 5-6 times N,N-dimethylformamide to chloro-1-allyl-3-methylimidazole, stirring, and dissolving; (B) mixing diatomite and boric acid, calcining at 360-400 degrees C for 2-3 hours, cooling to normal temperature, adding 10-15 mol/L sodium hydroxide solution, soaking for 1-2 hours, filtering, washing for 3-5 times with water, drying, mixing, and ball milling; (C) adding 100-120 times deionized water, ultrasonically dispersing for 3-5 minutes, adjusting pH to 10-12, stirring for 20-30 minutes, adding hydrazine hydrate, reacting at 76-80 degrees C for 20-24 hours, washing with deionized water and acetone, and vacuum drying; (D) adding polyvinylpyrrolidone to 6-10 times deionized water, stirring, adding toluene diisocyanate, oil bath heating to 105-110 degrees C, stirring for 6-10 minutes, discharging, cooling, adding acrylamide, and stirring; (E) taking poly- epsilon -caprolactone diol and polypropylene glycol, mixing, and stirring; (F) mixing premixed monomer ester, premixed monomer alcohol, and stearic acid, introducing nitrogen gas, preserving for 2-3 hours at 70-80 degrees C, cooling, adding polymethyl acrylate, and stirring; (G) adding octamethylcyclotetrasiloxane, tetramethyl disiloxane, and concentrated sulfuric acid, stirring at 30-40 degrees C for 20-30 minutes, heating to 50-60 degrees C, slowly adding trifluoropropyl methyl cyclotrisiloxane, stir-reacting for 4-5 hours, cooling to room temperature, adjusting pH to 6-7, and filtering; and (H) mixing with poly- epsilon -caprolactone diol, stirring, adding butyl acetate, stirring at 60-65 degrees C for 20-30 minutes, adding toluene diisocyanate, stirring, adding modified graphene, introducing nitrogen gas, reacting for 3-4 hours at 80-85 degrees C, adding premix and remaining raw materials, stirring, filtering, and vacuum drying.