LSZH PE Compound
- PE Density: Typically 0.90–0.96 g/cm³
- Processing Temperature: -50 to 95–105°C
- Size: typically 2–5 mm
- Environmental Compliance: RoHS / ALCANZAR
External Structure & Fórmula
External Features
Cylindrical or flattened granules, approximately 2–5 mm in diameter, with a smooth surface free of mechanical impurities, facilitating automatic metering and feeding and stable extrusion; available in natural, milky white, or custom-colored.
Structural Composition
Matrix Resin: PE (polyethylene) is used as the continuous phase. LLDPE/LDPE/HDPE or other modified systems are also commonly used in engineering to balance flexibility, strength, and processing fluidity.
Sistema retardante de llama: Inorganic hydroxides are the main flame retardants, such as aluminum hydroxide (Al(OH)3) and magnesium hydroxide (Mg(OH)2). Flame retardancy is achieved through endothermic dehydration and dilution of flammable gases or oxygen; surface modification is used to improve dispersion and efficiency.
Additive System: Lubricants or dispersants (fatty acid salts/waxes) improve filler wetting and melt rheology; antioxidants (hindered phenols + phosphites) and light stabilizers (such as HALS) are used to inhibit thermo-oxidative/UV aging; nucleating agents can be added as needed to improve crystallization and dimensional stability.
Flame Retardant Principle
Heating → Flame retardant decomposes endothermically → releases water vapor to dilute oxygen and combustible gases → forms a char layer to block heat/mass transfer → flame self-extinguishes and smoke density decreases.
Parámetros técnicos & Advantages
Technical Specifications
| Artículo | Densidad | Melt Index MI (190°C/2.16 kg) | Resistencia a la tracción | Alargamiento en rotura | Heat Distortion Temperature | Embrittlement Temperature | Flame Retardant Rating | Índice de oxígeno (OI) | Resistividad de volumen | Rigidez dieléctrica |
| Typical Values/Range | 0.92–0.96 g/cm³ | 0.5–10 g/10 min | ≥12 MPa | ≥200% | ≥60°C | ≤-40°C | CEI 60332-1-2 Single-strand vertical combustion pass; Bundling grade customized upon request. | ≥28% | ≥1×10¹⁴ Ω·m | ≥20 kV/mm |
Nota: The parameters are for reference only and can be customized according to customer specifications and performance.
Features
| Features | Detailed Description |
| LSZH | Halogen-free, produces low smoke and low-toxicity gases during combustion, improving safety. |
| Thermoplastic Granules | It can be used directly in processing methods such as extrusion and injection molding. |
| High Flame Retardancy | The halogen-free mineral flame retardant (MDH/ATH) is uniformly dispersed and has low flame spread. |
| Mechanical Properties | Maintain the toughness, tensile strength and flexibility of PE |
| Customizable Formulas | Adjustable hardness, flexibility, flame retardancy rating, filler content, and color. |
| Processing Stability | The melt has good fluidity, the extrusion and molding process is smooth, and the particles are stable. |
| Environmental Compliance | Compliant with environmental standards such as RoHS and REACH, suitable for export markets. |
| Industrial Bulk Cargo Supply | Targeting B2B and OEM customers, capable of mass production and long-term supply. |
Aplicaciones típicas & Process Adaptation
- Building wiring (BV/BVR), multi-core control cables, fire alarm and emergency circuits
- Rail transit vehicle cables, marine and offshore engineering cables, nuclear power/industrial control equipment wiring
- Communication and data cable sheaths/fillers, fiber optic loose tubes and accessories
- Indoor and outdoor general-purpose sheaths, weather-resistant wires, complex cavity extruded structural components
Process Recommendations (for engineering coordination)
Extrusion Temperature Window: Set segmented temperatures according to substrate and MI to avoid over-melting and melt fracture
Cooling and Traction: Appropriately increase cooling intensity and uniformity, control draw ratio/concentricity, and reduce sharkskin and internal stress
Die and Screen: Match mesh size, stabilize back pressure, and reduce melt fracture and precipitation
Coloring and Dispersion: Prioritize the use of highly dispersed masterbatches and surface-modified fillers to ensure stable color and electrical properties
Why choose ZMS Material
Qualification Certification
Producto & Environmental Compliance: Compliant with CE (if applicable), RoHS/REACH, CEI 61034 Low Smoke, CEI 60754 Low Halogen, CEI 60332 Flame Retardant, and CPR building product regulatory standards (p.ej., EN 50575).
System & Quality: ISO 9001 Quality Management System; traceable records of full inspection/sampling from incoming materials to manufacturing to shipment.
Third-Party Testing: Complete reports available for flame retardancy, smoke density, halogen content, electrical properties, aging, and weather resistance.
Warranty Terms: Clearly defined warranty period, batch consistency, and after-sales response mechanism; supports long-term project-based supply.
Quality & Craftsmanship Showcase
Raw Material Control: High-purity PE resin and high-purity aluminum hydroxide or magnesium hydroxide are preferred; batch sampling and COA traceability are maintained.
Blending Process: High-shear co-rotating twin-screw homogenization, online drying and loss-in-weight measurement ensure both dispersion and moisture content meet standards.
Extrusion Granulation: Closed-loop circulating cooling, online filter replacement and melt pressure monitoring ensure granules are free of bubbles and black spots.
Testing Capabilities: Laboratory testing covering rheology, mechanical properties, electrical properties, retardante de llama, smoke density, halogenation, aging, weathering, etc.; key items can be third-party verified.
R&D Collaboration: Project-specific support includes formula optimization, process window suggestions, part problem diagnosis, and full-process support from pilot-scale to mass production.
Delivery and Service: JIT supply, flexible minimum order quantity, moisture-proof and anti-static packaging, full logistics tracking, and timely after-sales response.
Servicios de materiales ZMS & Logística
Soporte técnico profesional
Los experimentados ingenieros de materiales de ZMS brindan orientación sobre la selección de compuestos., diseño de aislamiento de cables, y formulaciones personalizadas para varios grados. Nos aseguramos de que cada lote cumpla con sus requisitos eléctricos., mecánico, y requisitos de seguridad contra incendios.
Seguro de calidad & Servicio postventa
Cada lote de pellets de material se somete a un riguroso control de calidad., incluyendo densidad, rigidez dieléctrica, y pruebas de retardo de llama. Nuestro equipo de posventa está disponible para brindarle consultas., solución de problemas, y servicios de reemplazo si es necesario.
Soluciones de embalaje personalizadas
Los compuestos de ZMS Material se suministran en forma de gránulos o gránulos y normalmente se envasan en bolsas de polietileno a prueba de humedad., tambores de papel kraft, o bidones de plástico. También podemos proporcionar empaques personalizados con gráficos personalizados para proteger la integridad del material durante el transporte y almacenamiento..
Envío flexible & Entrega
Trabajamos con socios logísticos confiables para ofrecer servicios de envío global, incluyendo contenedor, paleta, o envío a granel. El personal dedicado y los procedimientos de envío meticulosamente planificados evitan la humedad., calor, o daños mecánicos, asegurar que el compuesto llegue en óptimas condiciones.