Ultra-low ash polypropylene resin has excellent electrical properties (extremely low high-frequency loss, high dielectric strength, high insulation resistance, etc.). Through continuous mass polymerization and a high-efficiency de-ashing process for the production of ultra-low ash polypropylene resin, the product has a very low ash content (< 20 ppm), and is widely used in consumer electronics, hybrid vehicles, power grid construction, promotion of new energy sources, railroad electrification, military supplies, and other fields.
1. Extremely low ash content, suitable for electrical grade products.
2. High-temperature resistance and good film formation.
Consumer electronics, hybrid vehicles, power grid construction, new energy promotion, railroad electrification, military munitions, and other fields.
| Item | Unit | PPH-UL-3015 Classic indicator range |
| Black particles | 个/kg | 0 |
| Color particles | 个/kg | 0-1 |
| Large and small particles | g/kg | ≤20 |
| Melt mass flow rate (MFR) | g/10min | 3.0-3.4±0.3 |
| Isotactic index | % | ≥98.0 |
| Ash | ppm | ≤15 |
| Aluminum content | ppm | 1~3 |
| Titanium content | ppm | 1~3 |
| Magnesium content | ppm | 1~3 |
| Chlorine content | ppm | <5 |
| Tensile modulus of elasticity | Mpa | ≥1400 |
| Tensile yield stress | Mpa | ≥34.5 |
| Nominal tensile strain at break | % | ≥350 |
| Yellowness index | / | ≤2 |
| Melting temperature | ℃ | ≥164 |
| OIT 200℃ | Min | ≥25 |
| Molecular weight distribution | / | 5-8 |
| Relative dielectric constant (power frequency) | / | 2.2±0.2 |