What antibacterial agents should be added to plastic powder for antibacterial purposes?
If the plastic powder needs to undergo antibacterial treatment, Tianshi Landun Silver Ion Antibacterial Agent can be added. The characteristics, antibacterial principle and addition suggestions of the powder coating antibacterial agent are as follows:
I. Characteristics of Dalian Tianwei Chemical's Silver Ion Antibacterial Agent
Highly efficient and broad-spectrum: It has a highly effective inhibitory effect on various bacteria and molds such as Escherichia coli and Staphylococcus aureus, with an antibacterial rate of over 99.9%.
High-temperature resistance: It can withstand temperatures below 400℃ for a short period of time and is suitable for high-temperature processing of powder coatings.
Safety: At the specified dosage, it has relatively low toxicity to the human body and is unlikely to cause allergic reactions, meeting food contact safety standards.
Long-term effectiveness: Once silver ions combine with the material surface, they form a stable antibacterial structure that continuously and slowly releases silver ions, providing long-term antibacterial protection
Ii. The Antibacterial Principle of Dalian Tianwei Chemical's Silver Ion Antibacterial Agent
Under the action of moisture, silver ions slowly migrate to the surface of the coating, and the surface of the antibacterial product continuously and slowly releases Ag⁺. Because bacteria carry a negative charge, positively charged Ag⁺ ions adsorb onto the surface of the bacteria, pass through the cell wall and enter the interior of the cell. They react and combine with sulfur groups (SH-) contained in the cell enzymes, destroying the composition and activity of the cell enzymes, causing the death of bacterial cells, and effectively inhibiting the reproduction of bacteria.
Iii. Add Suggestions
Dosage: It is recommended to add 0.6% to 0.8% of the silver-based antibacterial agent from Dalian Tianwei Chemical Co., Ltd. to the powder coating. The specific dosage can be adjusted according to the characteristics of the powder coating. In the selection of silver-based antibacterial agents for powder coating antibacterial products, as the content of active ingredients varies from supplier to supplier, the addition amount will also differ. The final result is an antibacterial effect with an antibacterial rate of over 90%, and the addition of antibacterial products does not affect other properties of the paint film.
Selection basis: For powder coating products with high surface finish requirements and dense structure, when choosing silver-based antibacterial agents, it is necessary to select some antibacterial powders with large particle sizes, which makes it easier for silver ions to migrate to the surface and also leads to better antibacterial effects.
Technical follow-up service: Dalian Tianwei Chemical can provide technical follow-up service to ensure that the antibacterial effect meets the expected requirements.
