Zinc oxide dispersion and zinc ion antibacterial agent have certain differences in properties, functions and applications, die sich wie folgt zusammenfassen lassen:
1. Nature and composition:
Zinc oxide dispersion: zinc oxide powder evenly dispersed in a liquid medium (such as water, ethanol or acetone) formed a stable system. It is usually prepared by stirring and adding surfactants to improve the dispersion stability of zinc oxide powder.
Zinc ion antibacterial agent: a broad spectrum antibacterial agent based on inorganic zinc ion complex as the active ingredient. It can slowly release zinc ions and destroy the structure of bacterial cell membranes and membrane proteins by binding to them, thus achieving antibacterial effects.
2. Mechanism of action:
Zinc oxide dispersion: In addition to excellent ultraviolet absorption and good electrical conductivity, its antibacterial properties mainly come from the freely moving negatively charged electrons and positively charged holes that are decomposed by nano-zinc oxide under sunlight and ultraviolet irradiation. These holes can activate oxygen in the air to become reactive oxygen species and oxidize with most organic matter (einschließlich organischer Substanz in Bakterien). Abtötung der meisten Keime und Viren.
Zinc ion antimicrobials: By slowly releasing zinc ions, they bind to negatively charged parts of the bacterial surface and disrupt the electrolyte balance of the bacteria, causing the bacteria to die due to damage to the cell wall. Gleichzeitig, zinc ions can also enter the interior of bacteria, react and combine with bacterial cell enzymes, inhibit the activity of cell enzymes and bacterial reproduction, and achieve the role of killing bacteria.
3. Application field:
Zinc oxide dispersion: It is widely used in antibacterial products (such as textiles, ceramic products, etc.), sunscreen products, Katalysatoren, and conductive materials (such as conductive coatings, electronic devices, etc.).
Zinc ion antibacterial agent: mainly used in plastic or rubber products, such as home appliances, telecommunications, Essen, Autos, textiles and other products antibacterial treatment. Außerdem, it can also be used for the antibacterial treatment of maternal and child supplies, household utensils, antibacterial medical devices, antibacterial silicone rubber keyboards, etc.
In a word, zinc oxide dispersions and zinc ion antibacterial agents have their own characteristics in properties, functions and applications. Zinc oxide dispersions are more focused on their optical, antibakteriell, conductive and catalytic properties, while zinc ion antibacterial agents mainly use their broad spectrum antibacterial properties and stability to play a role in specific fields such as plastics, rubber products and medical devices.
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