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Highly concentrated carbon black dispersion for consistent color and conductivity performance.
Optimized for polyethylene (PE) resin systems, ensuring excellent melt compatibility and process stability.
Low dust formulation enhances workplace safety and handling efficiency during compounding and injection molding.
Excellent thermal stability supports high-speed extrusion and thin-wall molding without pigment degradation.
Reproducible rheology and narrow particle size distribution enable precise dosing and uniform batch-to-batch quality.
Antistatic and conductive PE films for packaging and electronics shielding.
Blow-molded HDPE containers requiring UV stabilization and static dissipation.
Injection-molded automotive interior components with ESD-safe requirements.
Geomembranes and pond liners where long-term environmental resistance and conductivity are critical.
Rotational molded tanks and industrial parts demanding uniform carbon black distribution and mechanical integrity.
| Chemical Type | Carbon Black–Based Polyethylene Masterbatch |
| Product Form | Free-flowing cylindrical pellets |
| Appearance | Jet-black, uniform pellets with minimal fines |
| Base Resin | Low-Density Polyethylene (LDPE) |
| Carbon Black Loading | 25–27 wt% (typical) |
| Melt Flow Rate (190°C/2.16 kg) | 15–25 g/10 min |
| Moisture Content | <0.3 wt% |
| Key Features | ESD-safe, UV-stabilized, low-volatile, FDA-compliant for indirect food contact (per 21 CFR §178.3297) |
Q1: What is the primary function of Cabot PE2772 Masterbatch in polyethylene applications?
A: Cabot PE2772 Masterbatch is a carbon black–based concentrate engineered to provide consistent jetness, UV protection, and electrical conductivity enhancement in polyethylene compounds—particularly for blow-molded and extruded products such as containers, pipes, and geomembranes.
Q2: Is Cabot PE2772 suitable for food-contact polyethylene packaging?
A: Yes, Cabot PE2772 is formulated using food-grade carbon black and carrier resin compliant with global regulatory expectations for indirect food contact. Final compliance depends on full formulation validation and end-use processing conditions.
Q3: How should Cabot PE2772 be incorporated into PE resin during compounding?
A: It is typically introduced via gravimetric or volumetric dosing systems at the feed throat of an extruder. Good dispersion is achieved under standard PE processing temperatures and shear profiles; pre-drying is not required unless ambient humidity is exceptionally high.
Q4: Does Cabot PE2772 offer resistance to thermal degradation during high-output extrusion?
A: Yes, the masterbatch is stabilized to withstand typical PE processing temperatures up to 230 °C without significant carbon black agglomeration or carrier resin breakdown, supporting stable color and performance in high-throughput operations.
Q5: What is the typical dosage range for achieving target conductivity or UV stabilization?
A: Dosage depends on the specific PE grade, part geometry, and performance requirements—but generally ranges from 0.1% to 2% by weight. Lower loadings are often sufficient for UV protection, while higher concentrations may be needed for static-dissipative or conductive functionality.
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E-mail: wangxingqiang@ericwchem.com
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