Method for preparing silver-loaded nanometer titanium dioxide antibiosis UV curable varnish
A technology of nano-titanium dioxide and varnish, which is applied to biocide-containing paints, anti-fouling/underwater coatings, coatings, etc., to achieve the effects of simple preparation method, uniform dispersion and stable storage
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[0012] Example 1:
[0013] Add the silver-loaded nano-titanium dioxide powder accounting for 3% of the mass fraction of UV varnish into 1 / 10 UV varnish, ultrasonically disperse for 30 minutes, and then add 0.25% of the mass fraction of UV varnish and 9 / 10 UV varnish. , The composite dispersant is a mixture of Tritonx-100 and sodium hexametaphosphate with a mass ratio of 6:4 at a high-speed mechanical dispersion of 3500r / min for 50min. The modified silver-loaded nano titanium dioxide UV varnish roller is coated on the plastic surface, and the paint film is cured by a UV curing machine.
Example Embodiment
[0014] Example 2:
[0015] Add the silver-loaded nano-titanium dioxide powder accounting for 4% of the mass fraction of UV varnish into 1 / 10 UV varnish, ultrasonically disperse for 35 minutes, and then add 0.3% of the mass fraction of UV varnish and 9 / 10 UV varnish. , The high-speed mechanical dispersion is carried out at 4000r / min for 65min, and the composite dispersant is a mixture of Tritonx-100 and sodium hexametaphosphate with a mass ratio of 5.5:4.5. The modified silver-loaded nano titanium dioxide UV varnish roller is coated on the plastic surface, and the paint film is cured by a UV curing machine.
Example Embodiment
[0016] Example 3:
[0017] Add the silver-loaded nano-titanium dioxide powder accounting for 5% of the mass fraction of UV varnish into 1 / 10 UV varnish, ultrasonically disperse for 40 minutes, and then add 0.35% of the mass fraction of UV varnish and 9 / 10 UV varnish. , The composite dispersant is a mixture of Tritonx-100 and sodium hexametaphosphate with a mass ratio of 6.5:3.5 at a high-speed mechanical dispersion of 4500r / min for 80 minutes. The modified silver-loaded nano-titanium dioxide UV varnish roller is coated on the plastic surface, and the paint film is cured by a UV curing machine.
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