Z86 Natural Silica Filler CAS 61790-53-2 for Engineering Plastic and Thermoplastic
Z86 Natural Silica Filler CAS 61790‑53‑2 is fine‑ground purified natural siliceous earth filler with narrow particle‑size distribution. Used as functional extender in engineering plastic and general thermoplastic systems. It increases surface hardness, reduces molding shrinkage, improves heat deflection temperature and anti‑deformation performance of plastic parts. It can partially replace expensive reinforcing fillers, lower compound cost while maintaining acceptable processing property for inj
Overview
Our Z86 Natural Silica Filler CAS 61790‑53‑2 is processed from premium diatomite ore by purification, ultra‑fine milling and multi‑stage particle classification. This mineral filler is specially developed for thermoplastic and engineering plastic modification. After being blended with polymer resin via twin‑screw compounding, it delivers stable mechanical and dimensional performance for injection‑molded and extruded plastic finished goods.
Key Features
- Reduce molding shrinkage and warpage, significantly improve dimensional stability of plastic components.
- Increase surface hardness and rigidity, elevate heat‑distortion resistance of thermoplastic material.
- Good thermal stability, keep structural integrity under common plastic processing temperature range.
- Optimized particle size distribution, favorable dispersion in polyolefin, PA, ABS and other polymer matrices.
- Moderate oil absorption value, adapt to twin‑screw extrusion compounding craft, less screw torque fluctuation.
- Low soluble impurity, good compatibility with coupling agents, antioxidants and other plastic additives.
Main Applications
- Polyolefin PP / PE modified thermoplastic compound
- ABS, HIPS general engineering plastic filling modification
- Nylon PA filling and reinforcing compound system
- Injection‑molded household and industrial plastic parts
- Extrusion‑grade thermoplastic composite requiring dimensional control
Usage Recommendation
- Suggest addition dosage: 5‑25 % weight ratio, adjust according to rigidity, shrinkage and surface requirements.
- Surface treatment with silane coupling agent is recommended to enhance interfacial bonding between filler and polymer.
- Dry the filler sufficiently before feeding; moisture will cause bubble and silver‑streak defects during molding.
- Compounding via twin‑screw extruder is preferred for homogeneous dispersion.
- Perform lab compounding and injection trial to verify mechanical property before large‑scale production.
Storage & Package
- Store in dry and dust‑proof warehouse, keep bags tightly sealed against moisture absorption.
- Standard package: 25kg woven bag with inner PE liner.
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