A kind of moisture curing epoxy asphalt anticorrosion coating and preparation method thereof
A technology of epoxy asphalt and anti-corrosion coatings, which is applied in the field of coatings. It can solve the problems of difficult application and the impossibility of completely drying the surface, and achieve the effects of high-efficiency construction, excellent resistance to salt spray, and efficient and convenient construction.
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Embodiment 1
[0014] 1. Preparation of component A: by weight percentage, solvent 9%, thickener 2%, dispersant 1.1%, toughening agent 7.6%, epoxy resin 34%, coal tar pitch 25%, antirust pigment 13 %, 10% talcum powder in the reaction kettle at 115-120°C, keep warm for two hours, then cool down to 40°C.
[0015] 2. Preparation of component B: 65% of polyamidoamines; 12% of amidoamine curing agents; 24% of aromatic hydrocarbons, ketones or alcohol solvents in the reaction kettle at 81-86°C, keep warm for two hours, Cool down to 40°C.
[0016] Before coating, mix components A and B, and stir evenly to obtain a brown-red moisture-curing epoxy asphalt anticorrosion coating.
Embodiment 2
[0018] 1. Preparation of component A: by weight percentage, solvent 11%, thickener 1.5%, dispersant 0.8%, toughening agent 5.7%, epoxy resin 34%, coal tar pitch 29%, antirust pigment 9 %, talcum powder 11% in the reactor at 115-120°C, keep warm for two hours, then cool down to 40°C.
[0019] 2. Preparation of component B: 75% of polyamidoamines; 15% of amidoamine curing agents; 10% of aromatic hydrocarbons, ketones or alcohol solvents in the reaction kettle at 81-86°C, heat for two hours, Cool down.
[0020] Before coating, the components A and B are mixed and stirred evenly to obtain a moisture-curing epoxy asphalt anticorrosion coating; the coating in this example can be used to coat a coating with a thickness of 130-240 μm.
Embodiment 3
[0022] 1. Preparation of component A: by weight percentage: solvent 11%, thickener 2.3%, dispersant 0.9%, toughening agent 5%, epoxy resin 37%, coal tar pitch 27%, antirust pigment 16 %, 9% talcum powder in the reactor at 115-120°C, keep warm for two hours, then cool down to 40°C;
[0023] 2. Preparation of component B: 78% of amino polyamide; 8% of amidoamine curing agent; 15% of aromatic hydrocarbon, ketone or alcohol solvent in the reaction kettle at 81-86°C, keep warm for two hours, and cool down to 40°C.
[0024] Before coating, the components A and B are mixed and stirred evenly to obtain a moisture-curing epoxy asphalt anticorrosion coating.
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