A kind of coating colorant, preparation method and application
A coloring agent and coating technology, which is applied in the field of preparation of multifunctional hybrid silica sol, can solve problems such as poor color fastness, poor hand feel, and no affinity for fibers, etc., and achieves increased breaking strength and hand feel, improved color fastness, and increased The effect of adhesion
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[0051] (1) Preparation of paint dispersion: add paint to the silane coupling agent, stir at a high speed of 1000r / min for 30 minutes, and then disperse with ultrasonic waves for 30 minutes to make a paint dispersion. In the prepared paint dispersion, The paint content is 10% (accounting for the weight percentage of the paint dispersion);
[0052] (2) Hybridization and formation of silica sol: Add 5% to 15% ethanol, 10% to 20% tetraethyl orthosilicate and the rest of deionized water to the conical flask in sequence. Stir at 500rpm for 25min, then drop 10%-15% glacial acetic acid into the Erlenmeyer flask, stir the mixture at 50°C for 1h, then add 10%-20% paint dispersion dropwise (3s / d), continue stirring for 30min;
[0053] (3) Preparation of composite sol: add 10% to 20% tetrabutyl titanate to the mixed solution prepared in step (2), add slowly (2s / d), and then add 1% to 3% silver nitrate solution, adjust the rotating speed of the magnetic stirrer to be 400rpm, stir contin...
Embodiment 1
[0056] A. Preparation of coating dispersion:
[0057] Add aramid pigments to γ-glycidyl etheroxypropyltrimethoxysilane, stir at a high speed of 1000r / min for 30 minutes, and then disperse by ultrasonic waves for 30 minutes to obtain a coating dispersion. In the coating dispersion, aramid pigments The content is 10% (accounting for the weight percentage of the paint dispersion).
[0058] B. Hybridization and generation of silica sol:
[0059] Add 5% ethanol, 10% tetraethyl orthosilicate, deionized water, etc. to the Erlenmeyer flask successively, stir on a magnetic stirrer at a speed of 500rpm for 25min, then add 10% glacial acetic acid dropwise to the Erlenmeyer flask, The mixture was magnetically stirred at 50°C for 1 hour, then 10% paint dispersion was added dropwise, and the stirring was continued for 30 minutes.
[0060] C, the preparation of composite sol:
[0061] Add 10% tetrabutyl titanate to the above mixture, slowly add it dropwise (2s / d), and then add 1% silver n...
Embodiment 2
[0063] Preparation of A paint dispersion: Add C.I.2110 pigment to the silane coupling agent, stir at a high speed of 1000r / min for 30 minutes, and then disperse by ultrasonic waves for 30 minutes to obtain a paint dispersion. In the paint dispersion, the content of C.I.2110 pigment 10% (accounting for the weight percentage of the paint dispersion).
[0064] B hybridization and generation of silica sol: Add 10% ethanol, 15% tetraethyl orthosilicate and the remainder deionized water to the Erlenmeyer flask successively, stir for 25min at a speed of 500rpm on a magnetic stirrer, then dropwise add 13 % glacial acetic acid into the Erlenmeyer flask, and the mixture was magnetically stirred at 50°C for 1 hour, then 10%-20% paint dispersion (3s / d) was added dropwise, and the stirring was continued for 30 minutes.
[0065] Preparation of C composite sol: Add 15% tetrabutyl titanate to the above mixed solution, slowly add dropwise (2s / d), add 2% silver nitrate solution after the dropwi...
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