Talc Powder for Cosmetics and Personal Care

Product Overview
These high-purity cylindrical pellets represent a specialized functional additive engineered specifically for twin-screw extrusion systems. Manufactured through advanced surface modification technology and precision granulation processes, the product delivers exceptional processing performance and stable physical characteristics, significantly enhancing polymer processing efficiency while improving final product quality.

Key Features

1. Process Compatibility

• Specially optimized for co-rotating/counter-rotating twin-screw extrusion systems

• Perfectly matches conventional screw configurations with L/D ratios ranging from 40:1 to 60:1

• Suitable for complete processing from compounding to direct forming applications

2. Material Characteristics

• Ultra-high purity matrix material (≥98%) free from interfering components like resin carriers

• Precisely controlled cylindrical geometry (Φ2.5±0.1mm×3-6mm)

• Surface-treated with silane coupling agents, achieving contact angles ≤35°

Technical Advantages

1. Enhanced Processing Performance

• 45-50% increased bulk density compared to powders, improving conveying efficiency by over 30%

• Unique pellet morphology enables progressive plastication in screw melting zones

• Eliminates common powder-related issues like bridging and backflow

2. Improved Production Environment

• Dust generation <0.1mg/m³, meeting OSHA Class A standards

• Reduces cleanroom HVAC load by 20-25%

• Allows downgrading of respiratory protection to N95 standards

3. Formulation Flexibility

• Neutral pH (6.5-7.5) compatible with most resin systems

• Controlled surface energy (35-45mN/m) ensures excellent wettability

• Withstands thermal history up to 300℃/30min without performance degradation

Optimal Processing Parameters

• Loading Capacity: Up to 50wt%, representing 15-20% improvement over conventional powders

• Mixing Speed: Recommended ≤500rpm for low-speed mixers

• Feeding System: Gravimetric dosing devices with ±0.5% accuracy preferred

• Screw Configuration: Medium shear blocks with 3-5 KB elements recommended

Quality Control Standards

1. Physical Properties

• Apparent density: 0.85-0.95g/cm³

• Angle of repose: ≤28°

• Pellet strength: ≥50N/pellet

2. Chemical Properties

• Volatile content: ≤0.3% (105℃×2h)

• Ash content: ≤1.5% (800℃×2h)

• Heavy metals: Compliant with RoHS 2.0

Application Validation Data
Testing in PP/GF30 systems demonstrates:

• 18-22% increase in extrusion output

• 12-15kWh/t reduction in energy consumption

• 30-40μm improvement in fiber retention length

• 25-30% reduction in product surface roughness

Safety & Compliance

• ISO 14001 Environmental Management System certified

• Compliant with GB/T 19001-2016 Quality Management Systems

• FDA 21 CFR 178.3297 food contact material approval

Storage Requirements

• Recommended storage at <25℃ in dry conditions

• 24-month shelf life in original unopened packaging

• Maximum stacking height: 5 layers

Technical Support Services
We provide:

• Screw configuration optimization

• Process parameter tuning guidance

• Compatibility test reports

• Customized surface treatment solutions

Note: Product specifications subject to continuous improvement. Please refer to the latest technical documentation. For detailed application guidelines or samples, contact our technical support team.

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