▎ 摘　　要

NOVELTY - Preparing reinforced corrosion resistant coating comprises e.g. pre-treating the surface of the steel bars by degreasing steel bars, pickling, water washing, and sandblasting, preparing self-healing corrosion microcapsules by pouring 10-12 pts. wt. urea, 18-20 pts. wt. formaldehyde, and 1-3 pts. wt. ammonium chloride into the reactor, adding a pH adjuster to adjust the pH to 8-10, stirring evenly and raising the temperature to 60-80 degrees C and reflux reaction for 2-3 hours to form a urea-formaldehyde resin prepolymer, mixing 5-10 pts. wt. resorcinol, 3-7 pts. wt. polyvinyl alcohol, 10-20 pts. wt. linseed oil, and 1-3 pts. wt. 2-phenylbenzimidazole at 50-60 degrees C and stirring for 10-15 minutes, adding 1-5 pts. wt. deionized water and 0.1-0.5 pts. wt. sodium dodecylbenzene sulfonate, emulsifying for 20-30 minutes to form an oil emulsion, adding the urea-formaldehyde resin prepolymer to the oil emulsion. USE - The reinforced corrosion resistant coating is useful for marine engineering concrete . ADVANTAGE - The reinforced corrosion resistant coating: has excellent adhesive property and corrosion resistance; prolongs the service life of the reinforcing steel bar; and can be protected by the metal structure in the general environment. DETAILED DESCRIPTION - Preparing reinforced corrosion resistant coating comprises (1) pre-treating the surface of the steel bars by degreasing steel bars, pickling, water washing, and sandblasting, (2) preparing self-healing corrosion microcapsules by (a) pouring 10-12 pts. wt. urea, 18-20 pts. wt. formaldehyde, and 1-3 pts. wt. ammonium chloride into the reactor, adding a pH adjuster to adjust the pH to 8-10, stirring evenly and raising the temperature to 60-80 degrees C and reflux reaction for 2-3 hours to form a urea-formaldehyde resin prepolymer, (b) mixing 5-10 pts. wt. resorcinol, 3-7 pts. wt. polyvinyl alcohol, 10-20 pts. wt. linseed oil, and 1-3 pts. wt. 2-phenylbenzimidazole at 50-60 degrees C and stirring for 10-15 minutes, adding 1-5 pts. wt. deionized water and 0.1-0.5 pts. wt. sodium dodecylbenzene sulfonate, emulsifying for 20-30 minutes to form an oil emulsion, (c) adding the urea-formaldehyde resin prepolymer to the oil emulsion, adjusting the pH to 3-4 with hydrochloric acid, and reacting at 70-90 degrees C under reflux for 2-3 hours, vacuum filtering the product, washing with deionized water and acetone, placing in a drying oven to dry to obtain the corrosion repair microcapsules, (3) preparing cathodic electrophoretic coating comprises (a) adding 5-10 pts. wt. 2,4-toluene diisocyanate and 20-30 pts. wt. propylene glycol methyl ether into the reaction kettle, stirring and heating up to 50-60 degrees C under protective atmosphere, adding 3 drops in 2-3 hours, adding 3-5 pts. wt. methyl isobutyl ketone, after the completion, heating to 110-120 degrees C to react for 2-3 hours, and measuring NCO group content to obtain the semi-blocked isocyanate, (b) using a reaction flask equipped with a thermometer, a stirrer and a reflux condenser, adding 50-60 pts. wt. water-based hydroxy acrylic resin and 10-30 pts. wt. semi-blocked isocyanate successively, stirring and heating to 40-60 degrees C, adding 2-5 pts. wt. acetic acid, 1-5 pts. wt. metal powder, 1-5 pts. wt. graphene oxide powder, 5-10 pts. wt. isopropanol and 10-30 pts. wt. deionized water, and stirring for 10-20 minutes to prepare a color paste, (c) adding 30-50 pts. wt. organic amine modified epoxy resin, 2-10 pts. wt. diethylene glycol butyl ether, 5-15 pts. wt. bisphenol A polyoxyethylene ether, 1-5 pts. wt. methyl isobutyl ketone, 10-20 pts. wt. semi-blocked isocyanate and 20-30 pts. wt. deionized isocyanate and 20-30 pts. wt. deionized water, stirring and mixing uniformly to obtain an emulsion with a solid content of 30-50%, (d) mixing the color paste, and emulsion in the ratio of 1:2-1:4, mixing, adding 1-5 pts. wt. deionized water, stirring evenly and curing for 24-48 hours, adding 5- 10 pts. wt. self-repairing corrosion micro capsule, stirring for 10-30 minutes to obtain cathodic electrophoretic paint, and placing the cathodic electrophoretic coating into the cathodic electrophoresis tank, (4) placing the steel bars in the cathodic electrophoresis tank, setting the electrophoresis process parameters: cathodic electrophoresis tank liquid solid content is 10-15%, pH value is 5.5-6.5, conductivity is 200-500 us/cm, bath temperature is 30-50 degrees C, electrophoresis voltage 50-100 V, and electrophoresis time is 3-10 minutes, and (5) placing the electrophoresed steel bars into the drying box, setting the temperature to 150-200 degrees C, the time is 20-40 minutes, and cooling down naturally. An INDEPENDENT CLAIM is also included for reinforced corrosion resistant coating.