Aqueous environment-friendly insulation coating of anti-settling electric steel and preparation method thereof
An insulating coating and anti-settling technology, which is applied in coatings and metal material coating processes, can solve the problems of undisclosed electrical steel water-based environmental protection insulating coatings and thickeners that have poor anti-settling performance and cannot meet actual requirements. Excellent anti-settling performance, reduced operation difficulty, guaranteed coating performance and process adaptability
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Embodiment 1
[0087] Example 1: No. No.1
[0088] According to the following proportions, the anti-settling electrical steel water-based environmental protection insulating paint of the present invention is prepared:
[0089] Aluminum dihydrogen phosphate: 35%
[0090] Silica sol: 4%
[0091] Phosphoric acid: 3%
[0092] Nitric acid: 0.5%
[0094] Rare earth salt mixed solution: 2.5%
[0095] Silane coupling agent: 0.5%
[0096] Anti-settling additive: 15%
[0097] The rest is solvent water.
[0098] In this embodiment, the rare earth salt mixed solution is a solution of rare earth salt, peroxide, buffer and nitric acid, and its mixing ratio is:
[0099] Rare earth salt: 1%
[0100] Peroxide: 3%
[0101] Buffer: 2%
[0102] Nitric acid: 0.6%
[0103] The rest is solvent water.
[0104] In this embodiment, the rare earth salt in the rare earth salt mixed solution is selected from cerium nitrate and praseodymium chloride, and the mass ratio thereof ...
Embodiment 2
[0121] Example 2: Number No.2
[0122] Except following difference, other is the same as embodiment 1, according to following ratio, preparation anti-settling electrical steel water-based environmental protection insulating paint of the present invention:
[0123] Aluminum dihydrogen phosphate: 45%
[0124] Silica sol: 3.5%
[0125] Phosphoric acid: 8%
[0126] Nitric acid: 0.8%
[0128] Rare earth salt mixed solution: 3%
[0129] Silane coupling agent: 1.5%
[0130] Anti-settling additive: 12%
[0131] The rest is solvent water.
[0132] In this embodiment, the rare earth salt mixed solution is a solution of rare earth salt, peroxide, buffer and nitric acid, and its mixing ratio is:
[0133] Rare earth salts: 1.5%
[0134] Peroxide: 2%
[0135] Buffer: 2%
[0136] Nitric acid: 0.5%
[0137] The rest is solvent water.
[0138] In this embodiment, the rare earth salt in the rare earth salt mixed solution is selected from neodymium nit...
Embodiment 3
[0147] Embodiment 3: Number No.3
[0148] Except following difference, other is the same as embodiment 1, according to following ratio, preparation anti-settling electrical steel water-based environmental protection insulating paint of the present invention:
[0149] Aluminum dihydrogen phosphate: 30%
[0150] Silica sol: 4%
[0151] Phosphoric acid: 7%
[0152] Nitric acid: 0.7%
[0153] Rare earth salt mixed solution: 2%
[0155] Silane coupling agent: 1%
[0156] Anti-settling additive: 17%
[0157] The rest is solvent water.
[0158] In this embodiment, the rare earth salt mixed solution is a solution of cerium nitrate, cerous chloride, praseodymium chloride mixture, sodium peroxide, boric acid and nitric acid, and its mixing ratio is:
[0159] Rare earth salts: 1.5%
[0160] Sodium peroxide: 2%
[0161] Boric acid: 2%
[0162] Nitric acid: 0.5%
[0163] The mixing ratio of cerium nitrate, cerous chloride and praseodymium chloride i...
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