Anticorrosive coating, and preparation method and brushing method thereof
An anti-corrosion coating and brushing technology, which is applied in the field of coatings, can solve the problems of short anti-corrosion validity period, achieve long-term anti-corrosion ability, simple and easy coating method, and simple and easy preparation
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[0032] The preparation of the anti-corrosion coating that the embodiment of the present invention provides mainly comprises the following steps:
[0033]Polyethylene glycol and epoxy resin can be melt-blended first, and the polyethylene glycol and epoxy resin can be fully mixed to ensure that the epoxy resin is evenly mixed in the subsequent network structure, which is beneficial to improve the anti-cracking of the coating ability.
[0034] After melt blending, silane coupling agent can be added thereto, and catalyst (such as triethylamine, ethylenediamine, potassium carbonate) can be further added to make silane coupling agent react with polyethylene glycol to form a network structure, and the network structure is formed The epoxy resin is encapsulated in the process to make the second component. The second component is then mixed with the additives. Of course, after melt blending, the additives can also be added first for mixing, and then the silane coupling agent can be a...
Embodiment 1
[0042] The present embodiment provides a kind of anticorrosion coating, and its preparation method is as follows:
[0043] Ingredients: 50g of additives, 80g of the first component, 100g of the second component and 50g of ceramic microbeads.
[0044] The additive is ethylene-methacrylic acid copolymer; the weight ratio of aromatic diamine and anti-aging additive in the first component is 1.5:2; the second component includes a silane coupling agent with a weight ratio of 1:2:2.4 , polyethylene glycol and epoxy resin.
[0045] When the anti-corrosion coating is used, it is prepared on site, and its preparation and painting process steps are as follows:
[0046] The additive, the first component, the second component and the ceramic microspheres are mixed in proportion, and immediately painted on the base material to be protected after mixing to complete the painting.
Embodiment 2
[0048] The present embodiment provides a kind of anticorrosion coating, and its preparation method is as follows:
[0049] Ingredients: sodium pyrophosphate 12g, additive 10g, first component 30g, second component 50g and ceramic microspheres 20g.
[0050] The additive is a silicon-based oxide; the weight ratio of aromatic diamine and anti-aging additive in the first component is 1.5:1; the second component includes a silane coupling agent with a weight ratio of 1:2:1.5-2.3, Polyethylene glycol and epoxy resin.
[0051] When the anti-corrosion coating is used, it is prepared on site, and its preparation and painting process steps are as follows:
[0052] Melt-blending polyethylene glycol and epoxy resin at a temperature of 150° C., and then adding a silane coupling agent therein to prepare the second component. Then mix the sodium pyrophosphate, the additive, the first component, the second component and ceramic microbeads in proportion, and immediately paint on the base mat...
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