ZLSIL™S35 Silica Anti-Blocking Agent
Product Description
ZLSIL™S35 plastic-grade silica is a premium synthetic amorphous silica anti-blocking agent, presented as a fine white powder. Manufactured via an exclusive optimized production process, it delivers outstanding compatibility with various plastic substrates.
With a porous particle structure and moderate specific surface area, this product achieves excellent dispersion at low addition levels, requiring no pre-grinding, and will not impair the core properties of plastic films, including transparency and mechanical strength. Non-toxic, pollution-free, and free of volatile substances or migratable precipitates, it fully ensures the quality of packaged contents.
ZLSIL™S35 effectively improves the anti-blocking performance and creep resistance of films on high-speed packaging lines, while providing a reinforcing effect on film substrates. It reduces exposed molecular chains during polymer processing, preventing macromolecular chain entanglement between contacting film surfaces to resolve core blocking issues. Meanwhile, it lowers the adsorption force generated during film friction, enhancing the slip performance of finished films, and is compatible with a wide range of plastic processing scenarios.
Technical Specifications
Item | Specification |
Average Particle Size D50 / μm | 3.5~4.0 |
Oil Absorption Value / (g/100g) | 160~200 |
pH Value (5% Aqueous Suspension) | 6.0~8.0 |
Porosity / (ml/g) | 1.0~1.5 |
Loss on Drying (105℃, 2Hrs) / % | ≤2.0 |
Loss on Ignition (1000℃, 2Hrs) / % | ≤6.0 |
Surface Treatment | None |
Note: All test methods comply with HG/T 4526-2013 Chinese Industry Standard for Matting Silica |
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Applications & Usage Guidelines
This product is mainly used in the production of PP, PE, PET, and PVC plastic film masterbatches, efficiently improving the anti-blocking and slip properties of finished films, with no grinding required during processing.
For PET films with extremely strict moisture requirements, this product can be dried at temperatures below 300℃ prior to use, with no alteration to its core performance.
Packaging & Storage Instructions
1. For detailed product packaging specifications, please consult our local sales representative.
2. This silica material features stable chemical properties. Due to its high specific surface area, it readily absorbs moisture and volatile substances from the air. It is recommended to store it in a sealed, dry, well-ventilated, and cool environment, away from moisture and volatile compounds.
3. Under the above recommended storage conditions, the recommended shelf life of the product is no more than 24 months. If used beyond this period, application testing must be performed first to verify performance compliance.
4. Necessary protective measures must be taken during loading, unloading, handling, and transportation to avoid dust dispersion.
5. It is recommended that the stacking height of the product does not exceed 10 layers. Compression may affect its dispersion performance; if compression occurs, appropriately extend the dispersion time during use.
6. For optimal performance, it is recommended to use the product immediately after opening the package to prevent moisture absorption.
