Processing Parameters
PROCESSING
The recommended temperatures for ADMER™ are as follows:
| PE-BASED GRADES | |||||
| C1 | C2 | C3 | C4 | AD | Die |
| 180 - 200 (°C) | 180 - 200 (°C) | 200 - 230 (°C) | 200 - 230 (°C) | 200 - 230 (°C) | 200 - 230 (°C) |
| PP-BASED GRADES | |||||
| C1 | C2 | C3 | C4 | AD | Die |
| 200 - 230 (°C) | 200 - 230 (°C) | 200 - 250 (°C) | 200 - 250 (°C) | 200 - 250 (°C) | 200 - 250 (°C) |
- MAXIMUM TEMPERATURE: 300°C
- TEMPERATURES ABOVE THE UPPER LIMIT OR LONG RESIDENCE
TIMES OF MOLTEN RESIN MAY LEAD TO DECOMPOSITION OF THE POLYMER. - DECOMPOSITION PRODUCTS MAY BE CARBON MONOXIDE,
CARBON DIOXIDE, HYDROCARBONS AND WATER.
SHUTDOWN
The following procedure is recommended whilst the extrusion process is either interrupted or terminated.
- LESS THAN 2 HOURS: SCREW ROTATION CAN BE STOPPED MAINTAINING TEMPERATURE.
- MORE THAN 2 HOURS: PURGE OUT AND SHUT DOWN IN ACCORDANCE WITH COMMON PROCEDURE.
PURGING
Below you will find the recommended purging materials and their extrusion temperatures for a permanent shutdown.
| Materials | Temperature (°C) | |
| PE-based grades | Polythylene* | 200 - 230 |
| PP-based grades | Polythylene | 230 - 250 |