View Count：44
Date：2026-04-18
iHeir-PSZ104 inorganic plastic antimicrobial agent
Product Overview
iHeir-PSZ104 is a new type of inorganic antibacterial agent based on silver ion compounds, combining high safety, broad-spectrum antibacterial efficacy, and excellent thermal stability. This product is specifically designed for plastics, rubber, fibers, coatings, and other materials. It effectively inhibits the growth of bacteria and mold on product surfaces, preventing aging, discoloration, embrittlement, and disease transmission caused by microbial erosion. PSZ104 meets the strictest environmental regulations of Europe, the US, and Japan, is suitable for food contact, does not discolor, withstands high temperatures, and is wash-resistant, making it especially suitable for light-colored or transparent plastic products.
Product Features
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Broad-spectrum & long-lasting: Excellent killing and inhibiting effects against bacteria (E. coli, S. aureus, P. aeruginosa, etc.) and fungi (A. niger, C. albicans, etc.), antibacterial rate ≥ 99.99%.
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High temperature resistance: Withstands processing temperatures of 300°C～320°C, suitable for high-temperature injection molding, extrusion, and other processes, with minimal discoloration.
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Non-leaching, good durability: Antibacterial components do not migrate or leach out, resistant to acids, alkalis, and washing; bacteria are less likely to develop resistance.
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Small particle size, uniform dispersion: Average particle size of only 1–2 μm, large specific surface area; after surface treatment, it has good compatibility with various resins, without affecting material processing properties or appearance.
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Safe and non-toxic: Non-irritating to human skin, classified as safe and non-toxic. Rat acute oral LD50 > 2560 mg/kg.
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Environmentally stable: Remains stable under strong UV and acid rain conditions, suitable for outdoor products.
Product Properties
| Property | Value |
|---|---|
| Appearance | White powder |
| Whiteness | > 90 |
| Average particle size | 1–2 μm |
| Specific surface area | 10–15 m²/g |
| Particle density | 3.0 g/cm³ |
| Heat resistance | 300°C～320°C |
| Inhibition rate | ≥ 99.99% against E. coli, S. aureus, C. albicans, etc. |
Minimum Inhibitory Concentration (MIC, ppm)
| Microorganism | MIC (ppm) |
|---|---|
| E. coli | 200 |
| P. aeruginosa | 200 |
| S. aureus | 50 |
| A. niger | 1000 |
| A. pullulans | 1000 |
| C. albicans | 1500 |
Applications
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Plastic and rubber products (children’s toys, daily necessities, appliance housings, interior decoration materials)
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Fiber products, textiles
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Coatings, ceramic products
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Water treatment equipment, medical and hygiene products
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Sports goods, cosmetic containers
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Building and civil engineering materials
Usage Instructions
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Recommended addition level: 0.5% ~ 1.0% based on total weight of the product.
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Can be mixed directly with resin, or used as an antibacterial masterbatch or dispersion for flexible application.
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The optimal addition level should be determined by our Chemical & Microbial Technology Center based on formulation and process trials.
Antibacterial Test Results (Example)
| Addition level | Washing condition | E. coli kill rate | S. aureus kill rate |
|---|---|---|---|
| 1% | Unwashed | > 99.9% | > 99.9% |
| 1% | Washed for 72 hours | > 99.9% | > 99.9% |
Toxicity & Safe Handling
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Rat acute oral LD50 > 2560 mg/kg.
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Wear protective clothing, rubber gloves, eye protection, and a face mask during handling. Avoid contact with skin, eyes, and mucous membranes.
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In case of contact, rinse thoroughly with plenty of water and seek medical attention if necessary.
Packaging, Storage & Transportation
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Packaging: 25 kg fiber drum
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Storage conditions: Store at room temperature, protected from light, in a sealed, dry environment.
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Shelf life: 12 months
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Transportation: Not classified as dangerous goods
Important Notice
Due to factors beyond iHeir’s control, including customer-specific formulations, raw materials, production processes, and environmental conditions, we cannot guarantee the final performance of the product in the customer’s formulation. Therefore, we make no warranties or accept liability for quality disputes concerning end products. Users are advised to conduct thorough testing prior to use.
