Moisture-cured epoxy asphalt anticorrosive paint and preparation method thereof
A technology of epoxy asphalt and anti-corrosion coating, applied in the field of coatings, can solve the problems that the surface cannot be completely dry and difficult to apply, and achieve the effects of excellent salt spray resistance, high-efficiency construction, and strong adhesion
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[0013] Example 1
[0014] 1. Preparation of component A: In terms of weight percentage, solvent 9%, thickener 2%, dispersant 1.1%, toughening agent 7.6%, epoxy resin 34%, coal tar pitch 25%, antirust pigment 13 %, 10% of talc powder in the reactor at 115-120°C, keep the temperature for two hours, and lower the temperature to 40°C.
[0015] 2. Preparation of component B: polyamidoamine 65%; amidoamine curing agent 12%; aromatic hydrocarbon, ketone or alcohol solvent 24% in the reactor at 81~86℃, heat preservation for two hours, Cool down to 40°C.
[0016] Before coating, the two components A and B are mixed and stirred evenly to obtain a brown-red moisture-curing epoxy asphalt anticorrosive coating.
Example Embodiment
[0017] Example 2
[0018] 1. Preparation of component A: In terms of weight percentage, solvent 11%, thickener 1.5%, dispersant 0.8%, toughener 5.7%, epoxy resin 34%, coal tar pitch 29%, anti-rust pigment 9 %, 11% of talc powder in the reactor at 115-120°C, keep the temperature for two hours, and cool down to 40°C.
[0019] 2. Preparation of component B: 75% of polyamidoamines; 15% of curing agent of amidoamines; 10% of aromatic hydrocarbons, ketones or alcohol solvents in the reactor at 81-86°C, heat preservation for two hours, Cool down.
[0020] Before coating, the two components A and B are mixed and stirred uniformly to obtain a moisture-cured epoxy asphalt anticorrosive coating; the coating of this embodiment can be used to coat a coating with a thickness of 130-240 μm.
Example Embodiment
[0021] Example 3
[0022] 1. Preparation of component A: in weight percentage: solvent 11%, thickener 2.3%, dispersant 0.9%, toughener 5%, epoxy resin 37%, coal tar pitch 27%, anti-rust pigment 16 %, 9% of talc powder in the reactor at 115~120℃, keep for two hours, and cool down to 40℃;
[0023] 2. Preparation of component B: 78% of amino polyamides; 8% of amidoamine curing agents; 15% of aromatic hydrocarbons, ketones or alcohol solvents in the reactor at 81~86℃, keep warm for two hours, and cool down To 40°C.
[0024] Before coating, the two components A and B are mixed and stirred evenly to obtain a moisture-cured epoxy asphalt anticorrosive coating.
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