Epoxy resin-nano titanium interface chemical bonding anticorrosive coating and preparation method thereof
A technology of epoxy resin and interface chemistry, applied in the field of coatings, can solve the problems of poor interface compatibility between nano-titanium fillers and epoxy resin, and achieve the effects of increased salt spray resistance time, reduced water absorption, and improved strength
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Embodiment 1
[0032] 100 grams of epoxy equivalent 160 ~ 180 (g.mol -1 ) bisphenol F-type epoxy resin, 1 gram of nano-titanium filler with a particle size of 50nm are added to the coating dispersion equipment to disperse evenly, and the dispersed material is added to the coating grinding equipment to start grinding, and then 1 gram of tetrabutyl titanate is added Continue grinding at room temperature for 180 minutes to allow the tetrabutyl titanate to react with the nano-titanium filler and the epoxy resin at the same time to prepare the nano-titanium filler grafted with epoxy resin. Finally, add 19 grams of toughening agent, 0.2 gram of anti-skinning agent, 0.2 gram of matting agent, 0.2 gram of light stabilizer, 0.2 gram of anti-fungal agent, 0.2 gram of antistatic agent and grind for 30 minutes to obtain component A of the coating, which is injected into the can store. Next, add 60 grams of cashew shellamine to component A of the paint as a curing agent, stir evenly, and then apply the ...
Embodiment 2
[0034] 100 grams of epoxy equivalent 165 ~ 185 (g.mol -1 ) bisphenol F-type epoxy resin, 200 grams of nano-titanium filler with a particle size of 20nm, 210 grams of xylene, and 90 grams of n-butanol are added to the coating dispersion equipment to disperse evenly, and the dispersed materials are added to the coating grinding equipment to open Grinding, then adding 30 g of tetraisopropyl titanate and continuing to grind at room temperature for 80 minutes, allowing tetraisopropyl titanate to react with nano titanium filler and epoxy resin at the same time to prepare nano titanium filler grafted with epoxy resin. Finally, add 1 gram of defoamer, 0.2 gram of leveling agent, and 0.2 gram of thickener and grind for 10 minutes to obtain component A of the coating, which is injected into a can for storage. Next, add 1 gram of diethylenetriene as a curing agent to component A of the paint, stir evenly, and then apply the paint on the surface of the metal test piece with a spray gun, a...
Embodiment 3
[0036] 100 grams of epoxy equivalent 200 ~ 220 (g.mol -1 ) of aliphatic epoxy resin, 10 grams of nano-titanium filler with a particle size of 70nm, 30 grams of acetone, and 20 grams of isopropanol are added to the paint dispersion equipment to disperse evenly, and the dispersed materials are added to the paint grinding equipment to start grinding, and then Add 5 grams of isopropyl tris (dioctyl pyrophosphate acyloxy) titanate and continue to grind at room temperature for 150 minutes, allowing isopropyl tris (dioctyl pyrophosphate acyloxy) titanate to be mixed with nano-titanium filler simultaneously and epoxy resin reaction to prepare nano titanium filler grafted with epoxy resin. Finally, add 0.7 g of defoamer, 0.2 g of leveling agent, and 0.8 g of thickener and grind for 10 minutes to obtain component A of the coating, which is injected into a can for storage. Next, add 17 grams of tetraethylenepentamine as a curing agent to component A of the paint, stir evenly, apply the ...
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