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Product Definition
Zno antibacterial is a synergistic antimicrobial additive based on nano-zinc oxide modified with inorganic enhancers. It is designed to overcome the inherent limitations of standard nano-Zno-specifically agglomeration, poor dispersion, and high cost-while maintaining robust antibacterial performance through multiple mechanisms of action (ion release, oxidative stress, and direct membrane damage).
Product Parameters
|
Parameter |
Specification |
|
Appearance |
White to off-white powder |
|
Main Components |
Nano-zinc oxide, inorganic synergistic components |
|
Zinc Content |
≥ 38% |
|
Temperature Resistance |
320℃ |
|
Particle Size (D90) |
≤ 30 μm |
Product Advantages
- Low Addition Rate and Cost Efficiency: Requires only 0.5%–1.0% dosage compared to ≥2% for standard nano-ZnO, significantly reducing formulation costs while achieving equivalent or superior antibacterial effects.
- Broad-Spectrum Antibacterial Efficacy: Demonstrated effectiveness against common pathogens including Escherichia coli, Staphylococcus aureus, and Candida albicans via a multi-mechanism action that reduces the likelihood of microbial resistance.
- Safety and Regulatory Compliance: Manufactured with food-grade raw materials and free from heavy metals like silver, the product is non-irritating and compliant with food contact material additive standards, making it suitable for sensitive applications.
Primary Applications
- Plastics and Polymer Processing: Ideal for producing antibacterial masterbatches, injection-molded parts, and extruded profiles where uniform dispersion and thermal stability are critical for long-lasting hygiene protection.
- Rubber and Elastomer Manufacturing: Suitable for incorporation during the kneading or banbury mixing stages, providing antimicrobial properties to rubber seals, gaskets, and grips without compromising vulcanization or mechanical properties.
- Coatings and Paints: Can be dispersed into both solvent-based and water-based paint formulations as well as pigment pastes to deliver durable antibacterial surfaces for walls, medical facilities, and high-contact architectural structures.
Frequently Asked Questions (FAQ)
Q: How does this Zno antibacterial differ from standard silver-based antimicrobials in terms of safety and cost?
A: This product is a heavy-metal-free alternative that eliminates the regulatory and toxicity concerns associated with silver ions. Economically, its lower addition rate (0.5-1%) combined with the lower raw material cost of zinc versus silver provides significant savings in the final manufactured good.
Q: What is the recommended method to ensure optimal dispersion and efficacy in plastic injection molding?
A: While the powder can be dry-blended directly with plastic pellets, we strongly recommend pre-dispersing it into a concentrated antibacterial masterbatch. This two-step process ensures the active zinc particles are uniformly distributed throughout the polymer matrix, preventing agglomeration and guaranteeing consistent surface efficacy on complex molded geometries.
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