Preparation method for organic/inorganic hybridization cladding aluminum composite particle
A composite particle and coated technology, which is applied in the field of preparation of organic/inorganic hybrid coated aluminum composite particles, can solve the problems of poor resin compatibility, poor weather resistance, and decreased metallic luster, and achieve strong corrosion resistance. Good dispersion performance, excellent metallic luster effect
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[0023] Example 1
[0024] (1) The commercially available oily flake aluminum pigment, namely pigmented aluminum powder (average particle size: 13 microns), was cleaned in methyl ethyl ketone for 3 hours, vacuum dried at 105°C, and the vacuum degree was 0.09 MPa. The hydrogen evolution amount of the obtained flake aluminum powder is 183.0 ml·(0.5g) -1 , The gloss of the coating is 90.1Gs.
[0025] (2) In terms of parts by mass, mix 2 parts of flake aluminum powder and 80 parts of absolute ethanol uniformly, transfer the mixed slurry to the reactor, and stir for 0.5h.
[0026] (3) In terms of parts by mass, mix 0.9 parts of vinyl trimethoxyethoxy silane, 1.8 parts of ethyl orthosilicate and 40 parts of absolute ethanol; in addition, mix 7.2 parts of water, 1.5 parts of ethylenediamine and Mix 40 parts of absolute ethanol evenly.
[0027] (4) Add the two mixed solutions obtained in step (3) into the reactor of step (2) at a constant rate within 1 hour, and then react at a constant tempe...
Example Embodiment
[0029] Example 2
[0030] (1) The commercially available oily flake aluminum pigment, namely the pigment aluminum powder (average particle size of 10 microns), is cleaned in cyclohexanone for 3 hours, vacuum dried at 105°C, and the vacuum degree is 0.09MPa. The hydrogen evolution amount of the obtained flake aluminum powder is 170.2 ml·(0.5g) -1 , The gloss of the coating is 90.7Gs.
[0031] (2) In terms of parts by mass, mix 2 parts of flake aluminum powder and 60 parts of absolute ethanol uniformly, transfer the mixed slurry to the reactor, and stir for 1 hour.
[0032] (3) In terms of parts by mass, mix 0.8 parts of vinyl trimethoxyethoxy silane, 1.6 parts of ethyl orthosilicate and 40 parts of absolute ethanol; in addition, mix 8 parts of water, 2 parts of ethylenediamine and Mix 40 parts of absolute ethanol evenly.
[0033] (4) The two mixed solutions obtained in step (3) are fed into the reactor of step (2) in parallel flow at a constant speed within 1 hour, and then reacted a...
Example Embodiment
[0035] Example 3
[0036] (1) The commercially available oily flake aluminum pigment, namely the pigment aluminum powder (average particle size of 13 microns), was cleaned in cyclohexanone for 3 hours, vacuum dried at 105°C, and the vacuum degree was 0.09 MPa. The hydrogen evolution amount of the obtained flake aluminum powder is 170.2 ml·(0.5g) -1 , The gloss of the coating is 90.7Gs.
[0037] (2) In terms of parts by mass, mix 2 parts of flake aluminum powder and 50 parts of isopropanol uniformly, transfer the mixed slurry to the reactor and stir for 1 hour.
[0038] (3) In parts by mass, mix 1 part of vinyl trimethoxyethoxy silane, 2 parts of ethyl orthosilicate and 40 parts of isopropanol; in addition, mix 8 parts of water, 3 parts of ammonia and 40 parts Mix isopropanol well.
[0039] (4) Add the two mixed solutions obtained in step (3) into the reactor of step (2) in parallel flow at a constant rate within 1 h, and then react at a constant temperature of 40° C. for 8 h.
[0040...
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