A kind of water-based silver dollar type metallic glitter paint for automobile and preparation method thereof
A technology of metallic glitter paint and silver dollar, applied in coatings, polyurea/polyurethane coatings, etc., can solve the problems of affecting the appearance and the gloss of aluminum pigments, and achieve the effect of good protection, excellent sandability, and improved bonding force.
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Embodiment 1
[0041] Embodiment 1, the preparation of water-based silica coated silver dollar type aluminum pigment
[0042] a Mix the aluminum pigment with absolute ethanol, the solid-to-liquid ratio of the aluminum pigment and absolute ethanol is 1g:25mL, stir for 55min under the protection of nitrogen, then heat up to 40°C, and dropwise add tetraethyl orthosilicate Ethanol solution and ammonia ethanol solution, the ethanol solution of ethyl orthosilicate is: ethyl orthosilicate and absolute ethanol are mixed at a volume ratio of 1:28, and the ammonia ethanol solution is: ammonia water, deionized Water and absolute ethanol are mixed at a volume ratio of 9:10:50. When the aluminum-silicon ratio in the system is 5:1 and the water-silicon ratio is 30:1, stop adding the solution and react at 50°C for 6 hours. Vacuum suction filtration, wash 3 times with absolute ethanol, get wrapped silver dollar type aluminum pigment;
[0043] B adds the wrapping silver dollar type aluminum pigment that ste...
Embodiment 2
[0044] Embodiment 2, a kind of water-based silver dollar type metallic glitter paint for automobile
[0045] The automotive water-based silver dollar metallic glitter paint is composed of A component and B component mixed in a volume ratio of 4:6, and the A component is composed of the following components and parts by weight:
[0046] 30 parts of water-based silica-coated silver dollar aluminum pigment, 2 parts of modified polyurethane polymer, 6 parts of dipropylene glycol monomethyl ether, 6 parts of ethylene glycol monobutyl ether, 2-amino-2-methyl- 6 parts of 1-propanol and 40 parts of deionized water; The water-based silica-coated silver dollar-type aluminum pigment is the water-based silica-coated silver-dollar aluminum pigment obtained in Example 1; the 2-amino-2 -Methyl-1-propanol is a multifunctional additive AMP-95 containing 5% water-2-amino-2-methyl-1-propanol;
[0047] The B component consists of the following components and parts by weight thereof:
[0048] 50...
Embodiment 3
[0056] Embodiment 3, a kind of automobile water-based silver dollar type metallic glitter paint
[0057] The automotive water-based silver dollar metallic glitter paint is composed of A component and B component mixed in a volume ratio of 4:6, and the A component is composed of the following components and parts by weight:
[0058] 37.5 parts of water-based silica-coated silver dollar aluminum pigment, 4 parts of modified polyurethane polymer, 6 parts of dipropylene glycol monomethyl ether, 7.5 parts of ethylene glycol monobutyl ether, 2-amino-2-methyl- 6 parts of 1-propanol and 45 parts of deionized water; The water-based silica-coated silver-dollar aluminum pigment is the water-based silica-coated silver-dollar aluminum pigment obtained in Example 1; the 2-amino-2 -Methyl-1-propanol is a multifunctional additive AMP-95 containing 5% water-2-amino-2-methyl-1-propanol;
[0059] The B component consists of the following components and parts by weight thereof:
[0060] 60 part...
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Abstract
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