Handling Procedure
Description
ADMER® is a modified polyolefin with a functional group, that promotes adhesion to various materials. It bonds to polyolefins, gas barrier resins and metal by thermal reaction.
ADMER® NF-grades are linear low density polyethylene (L-LDPE) based and QB- and QF-grades are polypropylene (PP) based. AT-grades are newly developed and both PE and PP based. ADMER® is supplied in pellets of lenticular shape and can be used in coextrusion to produce multi-layer bottles, sheets, tubes, pipes, tanks and films.
Storage
ADMER® resins are supplied in the form of small, free flowing pellets and can be easily handled with commercially available equipment.
As long as ADMER® is stored under good conditions, it does not require any special care in storage. Precaution should be taken in opening the package to avoid contamination by foreign materials.
Drying
Since ADMER® is a non-hygroscopic material, it absorbs less moisture than non-polyolefinic polymers. Therefore, ADMER® does not require drying prior to processing.
Processing
Following are the recommended standard processing temperatures for ADMER®.
| PE based grades (NF) | |||||
| 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 (QB and QF) | |||||
| C1 | C2 | C3 | C4 | AD | Die |
| 200 - 230 (°C) | 200 - 230 (°C) | 200 - 250 (°C) | 230 - 250 (°C) | 230 - 250 (°C) | 230 - 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) | |
| PP based grades | Polypropylene | 230 - 250 |
| PE based grades | Polyethylene* | 200 - 230 |
| *Low density polyethylene (LDPE) is recommendable. | ||
Disposal
ADMER® can be disposed of by either landfill or incineration.
However, any disposal must comply with local regulations and recommendations.
Prior to using ADMER® products, please read carefully its material safety data sheet (MSDS) that can be obtained from Mitsui Chemicals Europe GmbH.
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