▎ 摘 要
NOVELTY - Method for preparing oil-resistant conductive anti-static anticorrosive coating added with modified graphene, involves (a) preparing phenoxy resin emulsion using 7-9 wt.% aqueous organosilicon, 0.2-0.5 wt.% defoamer, 45-50 wt.% phenoxy resin slurry and remaining of water, emulsifying and mixing, where the emulsifying and mixing process involves adding aqueous organosilicon and defoamer and water to emulsifier, and adding preheated phenoxy resin slurry in fine line shape under stirring, and uniformly stirring to obtain phenoxy resin emulsion, (b) preparing crosslinking solution using 0.1-0.2 part of sodium fluosilicate, 1-2 parts of crosslinking agent, 12-14 parts of modified graphene and 78-84 parts of water, uniformly mixing, heating at 60-65degrees Celsius, uniformly stirring and dispersing for 10-20 minutes to obtain cross-linked solution, (c) uniformly mixing phenoxy resin emulsion and crosslinking liquid in a ratio of (6-7):(1.3-1.5) to obtain the coating. USE - Method for preparing oil-resistant conductive anti-static anticorrosive coating added with modified graphene. ADVANTAGE - The method ensures excellent dispersibility, effectively fills the pores in polymer substrate, inhibits the penetration of corrosion-related media through coating, which greatly improves the oil resistance and corrosion resistance of the coating, reduces the oxygen transmission rate, effectively suppresses the galvanic corrosion of graphene, achieves the excellent dispersion in phenoxy resin substrate, adopts well-dispersed fluorinated graphene oxide nanosheets with impenetrable and electrically insulating properties to enhance the physical barrier of coatings, and prolongs the corrosion resistance time. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the application method for the oil-resistant conductive anti-static anticorrosive coating added with modified graphene, involving (a) performing acid washing, grinding and polishing treatment on metal substrate, washing and drying the metal substrate to make surface clean and rough surface, (b) preheating the treated metal substrate at 35-40degrees Celsius, and spraying the oil-resistant static anti-corrosion coating of modified graphene to metal substrate, and (c) performing thermal irradiation crosslinking treatment on sprayed metal substrate in infrared baking lamp and lamp distance of 40-48 cm for 30-50 minutes, and cooling.