Non-toxic environmentally-friendly oriented electrical steel insulation coating and preparation method thereof
A technology of oriented electrical steel and insulating coating, applied in coatings, anti-corrosion coatings, etc., can solve the problems of heat resistance and poor punching performance, and achieve improved moisture absorption and stickiness, simple preparation method, and good insulation. Effect
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Embodiment 1
[0043] According to the following ratio and method, configure the insulating coating provided by the invention:
[0044] Aluminum dihydrogen phosphate, 50%;
[0046] Boric acid, 4%;
[0047] Colloidal silicon dioxide, 10%;
[0048] TiO 2 , ZnO mixed powder, 4%;
[0049] Vinyl acetate, acrylic resin, phenolic resin, 13%;
[0050] Propylene glycol polyethylene oxide polypropylene oxide ether, 0.08%;
[0051] The rest is deionized water
[0052] The specific steps are:
[0053] 1) Al with a molar ratio of 0.2 2 o 3 with H 3 PO4 Mix and stir to make it fully react to obtain Al(H 2 PO 4 ) 3 solution, ready to use;
[0054] 2) After mixing vinyl acetate, acrylic resin, and phenolic resin according to the ratio of 2:1:2, add them into the reactor together with deionized water, and mix well;
[0055] 3) TiO with a particle size of 20-30nm 2 1. After the ZnO powder is mixed according to the ratio of 2:1, it is added to the mixed resin in 2)...
Embodiment 2
[0060] According to the following ratio and method, configure the insulating coating provided by the invention:
[0061] Aluminum dihydrogen phosphate, 45%;
[0063] Boric acid, 6%;
[0064] Colloidal silicon dioxide, 10%;
[0065] TiO 2 , ZnO mixed powder, 5%;
[0066] Vinyl acetate, acrylic resin, phenolic resin, 8%;
[0067] Propylene glycol polyethylene oxide polypropylene oxide ether, 0.03%;
[0068] The rest is deionized water
[0069] The specific steps are:
[0070] 1) Al(OH) with a molar ratio of 0.3 3 with H 3 PO 4 Mix and stir to make it fully react to obtain Al(H 2 PO 4 ) 3 solution, ready to use;
[0071] 2) After mixing vinyl acetate, acrylic resin, and phenolic resin according to the ratio of 1:1:2, add them into the reactor together with deionized water, and mix well;
[0072] 3) TiO with a particle size of 20-30nm 2 1. After the ZnO powder is mixed according to the ratio of 1:1, it is added to the mixed resin in 2)...
Embodiment 3
[0077] According to the following ratio and method, configure the insulating coating provided by the invention:
[0078] Magnesium dihydrogen phosphate, 43%;
[0079] Zinc molybdate, 25%;
[0080] Boric acid, 8%;
[0081] Colloidal silicon dioxide, 8%;
[0082] TiO 2 , MgO mixed powder, 3%;
[0083] Styrene-acrylic resin copolymerization, phenolic resin, 10%;
[0084] Propylene glycol polyethylene oxide polypropylene oxide ether, 0.07%;
[0085] The rest is deionized water
[0086] The specific steps are:
[0087] 1) MgO and H with a molar ratio of 0.45 3 PO 4 Mix and stir to make it fully react to obtain Mg(H 2 PO 4 ) 2 solution, ready to use;
[0088] 2) After mixing styrene-acrylic resin copolymer and phenolic resin according to the ratio of 1:1, add them into the reactor together with deionized water, and mix well;
[0089] 3) TiO with a particle size of 10-20nm 2 After the MgO powder is mixed according to the ratio of 1:1, it is added to the mixed resin in ...
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