▎ 摘　　要

NOVELTY - Processing graphene-based anticorrosive coating comprises (1) preparing raw materials: (1a) weighing sodium borohydride, tetrahydrofuran, iodine, dilute hydrochloric acid, alkylbenzene sulfonate, phosphoric acid, phenolic resin, tetraethylorthosilicate, epoxy resin, polyaniline, aluminum sulfate, pyridine and copper oxide, (1b) weighing the graphene, drying at 75 degrees C, (1c) weighing toluene and n-butanol, mixing them uniformly, and preparing the solvent; (2) preparing modified graphene oxide: (2a) preparing graphene oxide, placing in a beaker in batches, stirring quickly for 25 minutes, until the gas stops escaping; then heating to 100 degrees C, slowly adding the mixed liquid of tetrahydrofuran and iodine dropwise until the gas stops escaping, continuously stirring for 2.5 hours, then slowly adding dilute hydrochloric acid, extracting with ether after the reaction, drying and filtering to obtain modified graphene oxide; (3) preparing self-repairing microcapsules, and (4) preparing coating. USE - The method is useful for processing graphene-based anticorrosive coating. ADVANTAGE - The method designs a graphene-based anti-corrosion coating, with reasonable composition ratio, realizes the self-repairing effect of the anti-corrosion coating, improves the service life of the anti-corrosion coating, optimizes the parameter process, makes the anticorrosion effect of the coating more excellent, and has higher practicability. DETAILED DESCRIPTION - Processing graphene-based anticorrosive coating comprises (1) preparing raw materials: (1a) weighing sodium borohydride, tetrahydrofuran, iodine, dilute hydrochloric acid, alkylbenzene sulfonate, phosphoric acid, phenolic resin, tetraethylorthosilicate, epoxy resin, polyaniline, aluminum sulfate, pyridine and copper oxide, (1b) weighing the graphene, drying at 75 degrees C, (1c) weighing toluene and n-butanol, mixing them uniformly, and preparing the solvent; (2) preparing modified graphene oxide: (2a) preparing graphene oxide: using the graphene prepared in the step (1) and oxidizing with a strong oxidizing agent to obtain graphene oxide; (2b) taking the graphene oxide prepared in step (a) and placing in a beaker, dissolving the tetrahydrofuran, then take the sodium borohydride prepared in the step (1), placing in a beaker in batches, stirring quickly for 25 minutes, until the gas stops escaping; then heating to 100 degrees C, slowly adding the mixed liquid of tetrahydrofuran and iodine dropwise until the gas stops escaping, continuously stirring for 2.5 hours, then slowly adding dilute hydrochloric acid, extracting with ether after the reaction, drying and filtering to obtain modified graphene oxide; (3) preparing self-repairing microcapsules: (3a) using the alkyl benzene sulfonate prepared in step (1), placing in a beaker, adding phosphoric acid and phenolic resin, heating and stirring for 35 minutes, stirring uniformly, slowly adding distilled water dropwise to obtain first material; (3b) taking the tetraethyl orthosilicate prepared in step (3a), placing in a hydrochloric acid solution, and heating and hydrolyzing in a water bath to obtain second material; (3c) taking the first material prepared in step (3a), add the second material prepared in step (3b), adjusting the pH to 3 with hydrochloric acid, heating to 80 degrees C, stirring and reacting for 3 hours, and cooling to obtain the self-healing microcapsule; and (4) preparing coating: (4a) taking the polyaniline prepared in step (1), placing in a beaker, adding the solvent, stirring for 18 minutes, and then placing in an ultrasonic machine for ultrasonic dispersion for 2.5 hours to obtain third material; (4b) taking the epoxy resin prepared in step (1), adding the solvent prepared in step (1) to dissolve, stirring for 20-25 minutes, then adding the third material prepared in step (4a), stirring for 50-60 minutes, and then placing the modified graphene oxide prepared in step (2), the prepared self-healing microcapsule prepared in step (3), adding the aluminum sulfate, copper oxide, and pyridine prepared in step (1), stirring for 45 minutes, and then placing in an oven and vacuumizing for 20 minutes to obtain the anti-corrosive coating. The raw material components of the anticorrosive coating comprise 50 pts. wt. epoxy resin, 10 pts. wt. modified graphene oxide, 60 pts. wt. solvent, 20 pts. wt. self-repairing microcapsule, and 5 pts. wt. additive. The modified graphene oxide is prepared by modifying graphene oxide with a modifier, the graphene oxide is prepared by oxidation of graphene; the raw material components of the modifier includes 15 pts. wt. sodium borohydride, 60 pts. wt. tetrahydrofuran, 5 pts. wt. iodine, and 35 pts. wt. dilute hydrochloric acid. The raw material components of the self-healing microcapsule include 4 pts. wt. alkylbenzene sulfonate, 4 pts. wt. phosphoric acid, 30 pts. wt. phenolic resin, 55 pts. wt. tetraethyl orthosilicate. The raw material components of the additive include 5-15 pts. wt. polyaniline, 8 pts. wt. aluminum sulfate, 5 pts. wt. pyridine, and 8 pts. wt. copper oxide. The solvent includes toluene and n-butanol in the mass ratio of 1:1.2.