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ABOUTOur main products are indirect zinc oxide, with an annual output of about 10,000 tons; calcined zinc oxide, with an annual output of about 15,000 tons; direct method zinc oxide, with an annual output of about 20,000 tons.
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SERVICEOur main products are indirect zinc oxide, with an annual output of about 10,000 tons; calcined zinc oxide, with an annual output of about 15,000 tons; direct method zinc oxide, with an annual output of about 20,000 tons.
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NEWSOur main products are indirect zinc oxide, with an annual output of about 10,000 tons; calcined zinc oxide, with an annual output of about 15,000 tons; direct method zinc oxide, with an annual output of about 20,000 tons.
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CONTACTOur main products are indirect zinc oxide, with an annual output of about 10,000 tons; calcined zinc oxide, with an annual output of about 15,000 tons; direct method zinc oxide, with an annual output of about 20,000 tons.
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The six roles of zinc oxide in powder coatings
Publish Time:
2023-02-21
Zinc oxide is a white pigment, also known as zinc white.Since its coloring power is smaller than that of titanium dioxide, it can be used in greater quantities when replacing titanium dioxide with zinc oxide when titanium dioxide varnish is needed for color mixing.Makes color paste weighing convenient, adjustment easy and precise, and reduces color sensitivity.
1. As a white pigment and as a filler at the same time
Zinc oxide is a white pigment, also known as zinc white.Since its coloring power is smaller than that of titanium dioxide, it can be used in greater quantities when replacing titanium dioxide with zinc oxide when titanium dioxide varnish is needed for color mixing.Makes color paste weighing convenient, adjustment easy and precise, and reduces color sensitivity.
2. Used sparingly in epoxy resins containing carboxyl functional groups to improve the properties of coatings
Zinc oxide is alkaline, and can reflect the carboxyl functional group in the epoxy resin to form zinc soap to improve the flexibility and strength of the coating, and the coating is cleaner than titanium white for the color paste.
3. Promote the reaction of epoxy group with carboxyl group
In the epoxy resin / polyester, polyester / TGIC and other electrostatic powder makes the epoxy reaction carboxyl reflect faster, catalyze the reaction dry solid reflection, reduce the solidification time
4. As a conductive functional filler
In certain industrial applications where anti-static or conductive static electricity is necessary as.As a metal oxide, zinc oxide has a certain electrical conductivity and is therefore commonly used as a conductive filler in such architectural coatings
5. With the function of shielding out UV light
Zinc oxide is a reasonable and inexpensive white light stabilizer.Especially for the 240 - 380nm range of UV light has a good safety protection ability.It is often used for electrostatic powder, especially for outdoor electrostatic powder with good UV shielding ability, and can increase the coating life.
6. With mold and bacteria removal effect
Zinc oxide has a strong ability to remove bacteria and is used to remove bacteria in architectural coatings such as water soluble.Used in electrostatic powder also has the actual effect of mold removal.
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zinc oxide
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