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2022

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09

Introduction to the difference between nano zinc oxide and ordinary zinc oxide


Introduction to the difference between nano zinc oxide and ordinary zinc oxide:

① The production method of nano zinc oxide (VK-J50) is different from that of ordinary zinc oxide. General production methods of zinc oxide include indirect method, direct method and electrothermal method. For example, the common indirect zinc oxide is made from electrolytic zinc ingot after melting, and zinc vapor is made into Zn+02 through air oxidation surface under high temperature, while nano zinc oxide is reflected by magnesium chloride and alkali under ultra-high pressure and high temperature, and is filtered by organic chemical activated carbon to produce nano zinc oxide.

② The particle size of nano zinc oxide is different from that of ordinary zinc oxide. The particle size of nano zinc oxide is small and the area is large. The area of ordinary zinc oxide is more than 3-5 m2/g, while the area of nano zinc oxide is more than 30-50 m2/g, with a distance of 10 times.

Nanometer zinc oxide (VK-J50) is very obvious in improving the physical and mechanical properties of plastics. At the level of strength and elongation, the compressive strength at fixed elongation at 3OO% is increased by more than 10%. The specific surface area of nano zinc oxide VK-J50 can reach 50-60m2/g, and the original particle size of nano zinc oxide is 30nm. It is used as a plastic modified material with remarkable effect.

2. Main characteristics of nano zinc oxide (VK-J50):

① The activity is large and has a strong activation effect on the vulcanization reaction. Therefore, the amount of use can be reduced or the vulcanization time can be reduced;

② Small proportion and few harmful substances (such as Pb, Hg, Ge, Mn, etc.);

③ Nanometer zinc oxide is easy to mix with plastic particles, and it is well dispersed, which can improve the viscosity of plastic particles. Therefore, nano zinc oxide is used less than ordinary zinc oxide;

④ It can improve the stability and heat transfer of the pressed product shape.

⑤ Further improve the smoothness, impact toughness, high temperature resistance and aging resistance of rubber and plastic products, especially the wear resistance.

Reducing the use of zinc oxide can not only save zinc network resources for the country, but also be very beneficial to environmental protection. Waste with a higher zinc content will pollute the environment. It is a development trend to replace general zinc oxide with nano zinc oxide. Therefore, we should actively promote nano zinc oxide, and propose that the demand is 70-80% of general zinc oxide.

Luoyang Danke Zinc Industry Co., Ltd. is a manufacturer of nanometer powder with early scale industrial development in China. The company is a centralized production place of high-purity metal oxides and ultra-fine raw materials in China. The company has an annual output of 800 tons of nano alumina; 2000 tons of 5N high-purity aluminum oxide and product series; Production line with an annual output of 1000 tons of nano titanium dioxide; 200 tons of high catalytic activity nano titanium dioxide and its product series; Annual output of 1000 tons of nano zirconia and its product series; Annual output of 3000 tons of nano silica product series; The annual output of nano inorganic products is 200 tons, and the annual output of high-purity nano light magnesium oxide is 800 tons; 300 tons of high-purity nano ceria; 600 tons of high-purity nano zinc oxide and 200 tons of nano yttrium oxide. The products have already been used in information and communication, aerospace, national defense, architectural coatings, indoor air treatment, plastics, printing ink, plastics, skin care products, food, medicine, clothing and other fields.