▎ 摘　　要

NOVELTY - Preparing hybrid fiber involves using graphene oxide or modified lipophilic graphene, ultrahigh molecular weight polyethylene ethylene, and paraffin oil. The graphene or graphene oxide feed is uniformly dispersed in the ethanol solution to obtain 0.1-10 wt.% graphene or ethanol graphene oxide dispersion. The ethanol graphene oxide dispersion is mixed with lipophilic modifier in a weight ratio of 1:10-10:1 at a temperature of 50-150 degrees C to obtain modified graphene oxide or graphene dispersion. USE - Method for preparing hybrid fiber (claimed). ADVANTAGE - The method enables to prepare hybrid fiber in a simple and convenient way, which has high strength, good heat resistance, improved stress and mechanical performance, and wide application prospects. DETAILED DESCRIPTION - Preparing hybrid fiber involves using graphene oxide or modified lipophilic graphene, ultrahigh molecular weight polyethylene ethylene, and paraffin oil. The graphene or graphene oxide feed is uniformly dispersed in the ethanol solution to obtain 0.1-10 wt.% graphene or ethanol graphene oxide dispersion. The ethanol graphene oxide dispersion is mixed with lipophilic modifier in a weight ratio of 1:10-10:1 at a temperature of 50-150 degrees C to obtain modified graphene oxide or graphene dispersion. The starting material of graphene or graphene oxide powder is a slurry, dispersion, or a dispersion solution, where the dispersion slurry is mixed solution of graphene or graphene oxide and ethanol, and where the concentration of graphene or graphene oxide is 5-15 wt.%. The dispersion solution is a mixed solution of graphene or graphene oxide and ethanol, where the concentration of graphene oxide is 0.1-5 wt.%. The transverse dimension of graphene oxide or graphene is 0.5-50 microns, and thickness is 1-50 nanometers. The concentration of lipophilic modified graphene or graphene oxide dispersion is 0.1-10 wt.%. The ultra high molecular weight polyethylene is subjected to swelling, the antioxidant and ultra high molecular weight polyethylene are added to a kettle containing paraffin in the weight ratio of 1:1000-1500, heated to 100-150 degrees C for 1-2 hours until the high molecular weight polyethylene is subjected to complete swelling to obtain paraffin oil dope of ultra high molecular weight polyethylene wax. The obtained 1 wt.% lipophilic modified graphene or graphene oxide dispersion is blended with the paraffin oil dope, and stirred to obtain a uniform and stable pro oil-modified graphene oxide or graphene paraffin oil spinning liquid, where the molecular weight of the ultra high molecular weight polyethylene is 100-400, and the solid content of spinning liquid is 5-15%. The antioxidant is butylated hydroxyanisole or methyl phenol, and the weight ratio of antioxidant and ultra high molecular weight polyethylene is 1:1000-1500. The lipophilic modified graphene or graphene oxide accounts for 0.1-10 wt.%. The obtained lipophilic modified graphene or graphene oxide ultrahigh molecular weight polyethylene wax oil dope is added to a conventional spinning nozzle hole ejection device, and subjected to solidification to obtain frozen collagen silk, which is then extracted by using a hydrocarbon cleaning agent to remove the mineral oil. The dried yarn extracting agent is removed after the extraction process, and then subjected to three ultra-fold drafting to obtain graphene hybrid ultrahigh molecular weight polyethylene fiber, where the draft ratio is 20-40 times.