In order to improve the fire resistance and antifouling properties, the existing commonly used coatings for marine ships are mostly resin raw materials combined with inorganic additives.
Briefly describe a marine ship corrosion-resistant coating
The raw materials and technical solutions are as follows:
Styrene-acrylic emulsion, epoxy resin, organic solvent, interface regulator, nano-silica coordinated glass fiber modifier, ammonium polyphosphate, curing agent, wetting agent.
Preparation method of interface regulator:
Add silane coupling agent KH560 to ethanol solvent, stir evenly first, then add diisooctyl phosphate and lanthanum nitrate aqueous solution, stir well to obtain a regulating solution;
Send graphene into hydrochloric acid solution and stir evenly, then wash and dry, add ball milling agent, and then ball milling together, adjust the ball milling speed and ball milling time, finish ball milling, wash and dry to obtain graphene interface agent;
Add graphene interface agent to the regulating solution and stir well to obtain interface regulator.
The ball milling agent includes the following raw materials:
Sodium alkyl sulfonate, flaky nano-alumina modifier, chitosan aqueous solution, deionized water and potassium acetate solution.
The flaky nano-alumina is added to the sodium alginate solution and stirred evenly, and then silica sol and triisostearyl isopropyl titanate are added, stirred evenly, washed with water, and dried to obtain a flaky nano-alumina modifier.
The preparation method of the nano-silica coordinated glass fiber modifier is as follows:
The nano-glass fiber is added to deionized water, and then a phosphate buffer solution is added, stirred evenly, and then stearic acid is added and stirred fully to obtain a glass fiber agent;
The nano-silica is added to the glass fiber agent, and then sodium dodecylbenzene sulfonate is added, ultrasonically dispersed for 10-20 minutes, the ultrasonication is terminated, washed with water, and dried to obtain a nano-silica coordinated glass fiber modifier.
The curing agent is an aqueous polyisocyanate;
The wetting agent is a mixture of one or more of an acetylenic diol wetting agent, a fluorine-modified wetting agent, and an organosilicon wetting agent;
The organic solvent is xylene.