Diatomaceous Earth Filler CAS 61790‑53‑2 for Plastic Film Anti‑blocking Agent
Natural diatomaceous earth CAS 61790‑53‑2 is a porous inorganic mineral filler, specially developed as anti‑blocking agent for plastic film. With unique irregular porous microstructure, it is widely added into PE, PP blown film and cast film systems. It can form micro‑protrusions on film surface to decrease contact area between film layers, efficiently solve film blocking problem, improve film opening property, meanwhile maintain good transparency and mechanical performance of finished plastic f
Overview
Our diatomaceous earth filler CAS 61790‑53‑2 is purified natural amorphous silica diatomite powder, tailored for plastic film anti‑blocking application. Strict particle size control ensures good dispersion in polyolefin resin. Compared with traditional silica anti‑block agent, it brings cost advantage while delivering stable anti‑block effect, suitable for food packaging film, agricultural mulch film, industrial packaging film and other plastic film products.
Key Features
- Excellent anti‑blocking performance: porous particle builds micro‑rough surface, separate adjacent film layers, easy film opening.
- Fine & uniform particle size, good compatibility with PE, PP and other polyolefin materials, no agglomeration during extrusion processing.
- Inorganic mineral material, heat‑resistant under normal film processing temperature, no decomposition, no bad odor.
- Moderate influence on film transparency, balance opening performance and optical property.
- Cost‑effective inorganic functional filler, reduce overall formulation cost.
Main Applications
- PE blown film, PP cast film, packaging plastic film
- Agricultural mulch film, greenhouse film
- Food contact packaging film (meet relevant purity requirement)
- Industrial plastic wrapping film
Usage Recommendation
- Suggest addition dosage: 0.3‑1.5% by weight, adjust according to film thickness, processing condition and anti‑block requirement.
- Pre‑mix with plastic resin by high‑speed mixer, then feed to extruder for granulation or direct film blowing.
- Avoid over‑adding, excessive dosage will increase film haze.
Storage & Package
- Keep sealed in dry and cool warehouse, prevent moisture absorption.
- Standard package: 25kg woven bag with inner PE liner.
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