What are antimicrobial masterbatches?
Published Time:
2025-06-08
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Summary
Antibacterial masterbatch is a concentrated material made by uniformly dispersing antibacterial agents (such as nano-silver, zinc oxide, titanium dioxide, etc.) in a base resin. It is a core material for producing antibacterial plastics and fibers. It utilizes masterbatch technology to ensure the stable distribution of antibacterial agents in the material, thereby enabling products to have functions such as sterilization, antibacterial action, mold prevention, deodorization, and self-cleaning.
The bactericidal mechanism of antibacterial masterbatch is mainly based on the characteristics of nanomaterials. For example, nano-zinc oxide, due to its positively charged surface and structural defects, can bind with negatively charged bacterial cells, and simultaneously combine with photocatalysis to generate strong oxidizing substances like H₂O₂ for synergistic sterilization, showing significant killing effects on E. coli, Staphylococcus aureus, and others. This material is widely used in plastic products prone to bacterial growth, such as telephones, toys, and food packaging, effectively reducing the risk of bacterial cross-infection, extending food shelf life, and maintaining a clean and hygienic home environment.
The preparation of antibacterial masterbatch typically involves processing and mixing methods or coating methods, where antibacterial agents are mixed and processed with plastic masterbatch or antibacterial coating materials are formed through coating technology, and then further processed into antibacterial masterbatch. This ensures that antibacterial masterbatch not only possesses highly efficient and long-lasting antibacterial properties but also guarantees product safety and environmental friendliness, complying with food safety standards and environmental requirements.
In conclusion, antibacterial masterbatch, as a new type of material, demonstrates broad application prospects in various fields such as medical, food, and household, and is of great significance for improving people's quality of life.
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