▎ 摘　　要

NOVELTY - Preparation of graphene glass fiber involves (s1) placing glass fiber in acetone, treating in hydrochloric acid solution for hydroxylation, washing and drying, (s2) preparing graphite oxide by adopting three-step heating method, reacting with sodium nitrate and potassium permanganate, adding deionized water, adding hydrogen peroxide, putting into a dispersion liquid, and adjusting the pH value, (s3) placing the glass fiber in graphite oxide dispersion liquid, and in natural volatile airflow of hydroiodic acid and acetic acid, and reducing the graphite oxide, and (s4) mixing with high molecular polymer, placing in an eccentric internal mixer, continuously changing the material space in the rotating process to generate extensional rheology, extruding and granulating to obtain a graphene/glass fiber reinforced masterbatch, providing glass fiber with a conductive carbon layer on the surface and applying pulse current. USE - Preparation of graphene glass fiber for battery, supercapacitor, fuel cell, photo-catalysis, sensing and reinforcement applications. ADVANTAGE - The method uses the pre-combined graphite dispersion liquid and the modified glass fiber to fully combine graphite and the glass fiber, and provides graphene glass fiber with excellent graphene performance. The graphene is uniformly dispersed in the high-molecular polymer by the orientation of glass fiber. DETAILED DESCRIPTION - Preparation of graphene glass fiber involves (s1) placing glass fiber in acetone, soaking, treating in hydrochloric acid solution to hydroxylate, washing and drying, (s2) preparing graphite oxide by adopting a three-step heating method, reacting with sodium nitrate and potassium permanganate, adding deionized water, adding hydrogen peroxide, putting into a dispersion liquid with the mass concentration of 0.12-0.13 %, and adjusting the pH value to be weakly acidic, (s3) placing the glass fiber in the graphite oxide dispersion liquid, leaving still, cleaning and drying, placing in natural volatile airflow of hydroiodic acid and acetic acid, and reducing the graphite oxide at 32-48℃, and (s4) mixing with a high molecular polymer, placing in an eccentric internal mixer, raising the temperature, taking a rotor of the eccentric internal mixer as an eccentric rotor, continuously changing the material space in the rotating process to generate extensional rheology, stretching and stripping graphite into graphene, stretching and carding glass fibers into oriented distribution, dispersing the graphene in the high molecular polymer through the oriented distribution of the glass fibers, extruding and granulating to obtain a graphene/glass fiber reinforced master batch, providing glass fiber with a conductive carbon layer on the surface and applying pulse current. The reaction temperature of the graphite oxide for three-step process is 11-180 ℃, 32-38 ℃ and 82-88 ℃. The volume ratio of the hydroiodic acid to the acetic acid for producing the natural volatile gas flow is 1.2:1.8-1:3. The rotor speed of the eccentric internal mixer is 128-155 rpm, and the mixing time is 33-56 minutes.