Silica EC 700 Anti Blocking Agents In Plastic film
Chemical Properties
White powder form, Micronized Silica EC 700 can be dissolved by NaOH,HF. Other kinds of acid, water and solvents can not dissolve the product.
Specifications
| Items | Specification | Test Method |
| Appearance | White Powder | Visual Inspection |
| Average Particle Size um | 4-5 | Malvern Master Sizer |
| Loss on Drying % MAX | 3 | ISO787-2 |
| Oil Absorption ml/100g | 60-120 | Linseed Oil |
| Surface Area M2/g | 600-700 | B.E.T |
| PH | 5.0-7.0 | In 5% slurry |
| SiO2 % MIN | 99.9 | – |
| Whiteness MIN | 95 | Hunter |
Application
Silicon dioxide Silica EC 700 and other materials are efficient “anti-adhesion” agents, preventing the adhesion of polymer or plastic film layers. This includes both single silicon dioxide and physical mixtures.
Using silicon dioxide as an anti-adhesion agent prevents the sticking together of polymer film layers, commonly known as “blocking” in the industry. Silicon dioxide anti-adhesion agents also enhance the surface structure of the film, thereby improving scratch resistance. Grease offers a range of products suitable for various film thicknesses and polymer types.
This synthetic silica provides several advantages in polymer film and your manufacturing process, including:
- Efficiency – Achieving the desired effect with lower concentrations.
- Excellent dispersion and high film transparency.
- Stable and reproducible product quality.
The product can be used for multi-layer films (OPP, BOPP) and single-layer films (CPP, IPP) in polypropylene (PP). It is also suitable for linear low-density polyethylene (LLPDE) and low-density polyethylene (LPDE) films.
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