PP-Moplen HP500N
O PP-Moplen HP500N é um polipropileno homopolímero premium fabricado pela LyondellBasell, altamente favorecido por sua rigidez excepcional, resistência térmica e fácil fluidez (MFR 12 g/10 min). É amplamente especificado para embalagens rígidas, tampas e dobradiças vivas integradas. Na Jucheng Precision, um fabricante certificado ISO 9001:2015 e IATF 16949, somos especializados em moldagem de alta precisão do Moplen HP500N. Utilizando nossas mais de 35 prensas de moldagem avançadas (50-650T) e mais de 25 máquinas CNC de 5 eixos internas, controlamos a contração anisotrópica deste grau (1,3%-1,8%). Nossa análise DFM gratuita em 24 horas otimiza a localização dos pontos de injeção para evitar linhas de solda, garantindo integridade estrutural verificada por inspeção CMM Zeiss.
Moplen HP500N Performance & Processing Attributes
Moplen HP500N is a homopolymer Polypropylene engineered by LyondellBasell, optimized for injection molding of high-stiffness, heat-resistant components:
| Resin Grade | Resin Sub-Type | Core Technical Features |
|---|---|---|
| Moplen HP500N | Unfilled PP Homopolymer | High mechanical stiffness, outstanding fatigue resistance (vital for living hinges), low moisture absorption, and excellent heat deflection properties under low loads. |
Molding Process Configurations for Moplen HP500N
This grade’s stable 12 g/10 min melt flow rate allows for multiple high-speed production configurations:
| Tecnologia de Moldagem | Process Suitability for HP500N |
|---|---|
| Living Hinge Molding | Excellent. Moplen HP500N’s molecular chains orient highly under shear, creating robust, flexible hinge sections in flip-top caps that can flex thousands of times without tearing. |
| Thin-Wall Packaging Molding | High. Its intermediate flow index (MFR 12) supports fast filling of thin-walled food containers and high-gloss houseware products with low injection pressures. |
| Moldagem por Injeção Padrão | Excellent. Ideal for producing rigid, high-gloss household components, clips, structural brackets, and appliance trims. |
PP-Moplen HP500N Tooling & Injection Processing Guide
To prevent warpage and optimize the fatigue strength of the living hinges, our technical team implements precise processing boundaries for Moplen HP500N:
- Living Hinge Tooling Design: To secure optimal molecular orientation across the hinge, our in-house tooling division utilizes 5-axis CNC machines to cut precise, highly polished steel cores. Gates are placed to ensure the melt flows straight across the hinge perpendicular to the flexing axis, avoiding weak weld lines in the thin (typically 0.25mm to 0.38mm) hinge area.
- Melt Temperature profile: Maintained strictly between 200°C and 240°C (392°F to 464°F). Under-heating increases viscosity, causing high internal stresses, while overheating degrades the homopolymer chains, making hinges brittle.
- Mold Temperature Control: Managed at 20°C to 50°C (68°F to 122°F). Rapid cooling is necessary to restrict crystalline grain size, which increases part toughness and flexibility, particularly for snap-fits and hinges.
- Shrinkage Compensation: Homopolymer PP shrinks heavily (1.3% to 1.8%). Jucheng’s tooling engineers offset this volumetric shrinkage in the mold design stage using Moldflow analysis to maintain strict part geometry.
Key Application Fields for Moplen HP500N Parts
- Cosmetic & Food Packaging: Integrated flip-top caps, dispensing closures, thin-walled food containers, and reusable storage boxes.
- Bens de Consumo e Domésticos: High-gloss kitchenware, plastic cutlery, clothes hangers, rigid containers, and high-stiffness organizers.
- Office Equipment & Industrial: High-strength structural brackets, protective covers, document clips, and high-fatigue snapping clips.
Propriedades
| Densidade | 0.900 g/cm³ |
| Índice de Fluidez (MFR) (230°C/2,16kg) | 12 g/10 min |
| Resistência à Tração no Escoamento | 35 MPa |
| Alongamento na Cedência | 10 % |
| Módulo de Flexão | 1,450 MPa |
| Resistência ao Impacto Izod (Com Entalhe, 23°C) | 40 J/m |
| Dureza Shore D | 70 - |
| Vicat Softening Temperature | 154 °C |
| Temperatura de Deflexão Térmica (HDT @ 0,45 MPa) | 100 °C |
| Contração Linear no Molde | 1.3 - 1.8 % |
| Rigidez Dielétrica | 22 kV/mm |
| Resistividade de Volume | 1,0E+16 Ohm·cm |
| Tamanho Máximo da Peça | 1000 x 800 mm |
| Tamanho Mínimo da Peça | 1 x 1 mm |