- Model NO.: paint
- Grade Standard: Agriculture Grade
- Particle Size: Within 60 Nanometer
- Chemical Activity: High
- Another Merits: UV-Protective;Antibacterial and Inhibition;
- Trademark: Tianxiongjian
- Origin: Qingdao, Shandong
- Classification: Zinc Oxide
- Quality: First Class
- Specific Surface Area: Minium 60 Square Meters Per Kilogram
- Dispersibility: Excellent
- Other Merits: Eliminate Odor; Anti-Enzyme
- Specification: SGS
- HS Code: 281700
Nanometer Zinc Oxide(here shortened for Nano ZnO) is white hexagonal crystal or powder, tasteless and none toxic. The particle size is nanometer, that is the great feature. Compared with the Indirect Zinc oxide (here shortened for Indirect ZnO), the surface area is large and the chemical activity is high. Due to the enlarged surface area and retained a certain proportion active substance, the purity of Nano ZnO is accordingly reduced to 95%. But the surface area and active substance increased to the first considerable position.
It also has a photochemical effect and excellent ultraviolet light shielding performance. The ultraviolet shielding rate can reach 98%. And the relative density is 5.6% and the refractive index is 2.008---2.09. It can be dissolved in acid, sodium hydroxide, amine oxide and insoluble in water, ethanol and ammonium water. It belongs to amphoteric oxide and it turns to zinc carbonate appearing yellow color when it absorb carbon dioxide and water in air. When heated, it turns to yellow color and when cooled, it returned to white colour again. It doesn't change to black color when it meets hydrogen sulfide if it doesn't through ultraviolet light.
The drillability of Nano ZnO is good and dispersibility is excellent. Due to small particle size and structure loosen, osteoporosis, it enlarged the nitrogen adsorption surface area and distributed evenly when it used in rubber compound vulcanized. It enlarged the contact with the hydrogen sulphide and improved the interface reaction. The conversion rate increased when the zinc oxide turns to zinc sulfide due to the Nano ZnO has the active substances for catalytic effect.
Due to the excellent properties of Nano ZnO when used in rubber compound making products, especially used in transparent rubber making products, these rubber making products have such advantages, 1. Smooth appearance 2. Improved cleanliness and mechanical strength 3. Wear-resistant and high-temperature resistance 4. Delayed effectiveness 5. Improved technical function. If adding "high speed promoting agent" such as sulphenamides in rubber compound making, the Nano ZnO can improve the physical and mechanical properties of vulcanized rubber. It also can extend the scorch time and processing security without reversion phenomenon. The Nano ZnO is the most suitable product for the tire industry, such as the diagonal tire, radial tire and solid tire production application.
In addition, the Nano ZnO has the effect of antimicrobial cured flavor and the efficacy of anti-enzymes. It can be widely used in rubber compound products making. Besides due to the nano-particle size, high activity and large surface area, the Nano ZnO dosage can be reduced 1/3 or 1/2 compared with the Indirect ZnO dosage amount under guaranteed the same quality. Now the Nano ZnO gets a good response when used in rubber compound processing. It is accepted by a large number of Chinese tire or rubber factories.
|105 ºC Volatile substance||0.7%max|
|Hydrochloric acid insoluble matter content||0.05%max|