Medium-density polyethylene (MDPE) · Medium-density polyethylene for film (C4 copolymer)
LITEN FB 20
Medium-density polyethylene for waste bags and blends with LDPE/LLDPE
- Melt flow rate (190 °C / 5 kg)
- 1.1 g/10 min
- Density (23 °C)
- 938 kg/m³
- Dart drop impact (25 µm film)
- 100 g
Description
LITEN FB 20 is a medium-density polyethylene produced by Unipetrol RPA using UNIPOL gas-phase technology. It is a C4 copolymer supplied as natural pellets.
Recommended applications
- Blown films above 15 µm for waste bags
- Blends with PE-LD and PE-LLD films, up to 40 %
Technical properties
| Property | Value | Unit | Standard |
|---|---|---|---|
| Melt flow rate (190 °C / 2.16 kg) | 0.2 | g/10 min | ISO 1133-1 |
| Melt flow rate (190 °C / 5 kg) | 1.1 | g/10 min | ISO 1133-1 |
| Melt flow rate (190 °C / 21.6 kg) | 20 | g/10 min | ISO 1133-1 |
| Melt flow rate ratio (21.6 / 2.16) | 90 | - | ISO 1133-1 |
| Dart drop impact (25 µm film, blow-up ratio 4:1) | 100 | g | ISO 7765-1 |
| Melting temperature (DSC) | 130 | °C | ISO 11357-1, 3 |
| Vicat softening temperature (VST) | 114 | °C | ISO 306 |
| Heat deflection temperature HDT (1.8 MPa) | 38 | °C | ISO 75-1,2 |
| Density (23 ± 1 °C) | 938 | kg/m³ | ISO 1183-2 |
| Environmental stress crack resistance (ESCR), F50 (100 %) | 350 | h | ASTM D1693 |
| FNCT (50 °C, 9 MPa, 2 %) | 50 | h | ISO 16770 |
| Shore D hardness | 56 | - | ISO 868 |
Dart impact measured on 25 µm blown film (blow-up ratio 4:1). Manufacturer's typical values: they do not constitute a specification of the grade. Source: technical data sheet by Unipetrol RPA (Grupo ORLEN).
More information
- Characteristics
- C4 copolymer; natural pellets.
- International designation
- ISO 17855-PE-MD,F,38-T012
- Processing conditions
- Melt temperature: 200-220 °C. Blow-up ratio: min. 3.6:1. Screw length: min. 25 D (D = screw diameter).
- Food contact
- Complies with Regulation (EC) No 1935/2004, Commission Regulation (EU) No 10/2011 and Decree of the Ministry of Health No. 38/2001 of the Journal of Laws, as amended.
- Packaging
- Natural pellets with a typical length of 2-6 mm and a bulk density of 520-580 kg/m³. 25 kg PE-LD bags (55 bags per pallet) or bulk in road tankers.
- Service temperature
- Products may commonly be used up to 100 °C; where mechanical strength and stiffness are required, do not exceed 70 °C permanently or 90 °C intermittently. Below -30 °C the material becomes substantially brittle.