Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Markets
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
Properties
- Color
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Density Range | 20 - 30 | kg/m3 | - |
| Granulate Geometry | Bead-shaped granulate | - | - |
| Screen Limits | 0.5 - 1.4 | mm | - |
| Typical Granulate Diameter (min. 95% by weight) | 0.6 - 1.2 | mm | - |
| Pentane Content (at the time of packaging) | min. 5.0 | % | - |
| Water Content (at the time of packaging) | max. 0.3 | % | - |
Technical Details & Test Data
- Processing
Pre-expansion
With discontinuously operating, state-of-the-art pre-expanders lambdapor® micro STD can be preexpanded down to densities of approx. 20 kg/m³. With batch pre-expanders it is possible that the light sensors do not recognize the material in the preexpansion chamber because of its color. This may lead to a failure of the automatic steam switchoff. To prevent this occurring the steaming time should be fixed or the sensor setting modified.
Intermediate aging
Intermediate storage period should be between 8 and 24 hours.
Molding
lambdapor® micro STD can be processed on commercially available shape molding machines. Steaming should be reduced compared to other EPS types as the usual steaming would result in extended cycle times.
lambdapor®micro STD yields very well fused molded parts, even with reduced steaming. During the processing of lambdapor® micro STD small amounts of dust can be created by abrasion of the beads. As the dust is mainly originating from the pre-expansion process appropriate measures have to be taken to extract the dust in the molders plant.
Safety & Health
- Safety Instructions
Flammable pentane-air mixtures may be generated during storage and processing of lambdapor® micro STD. For this reason, adequate ventilation must be ensured (LEL pentane 1.3 % by volume). The blowing agent pentane escapes relatively slowly from EPS foam blocks. Thus, when cutting recently molded blocks, the formation of a flammable pentane-air mixture has to be anticipated.
In addition, all conceivable sources of ignition must be kept away, and the build-up of electric charges has to be prevented.
Packaging & Availability
- Packaging
lambdapor®micro STD is shipped in octabins (height max. 192 cm) on wooden pallets (114 x 114 cm) containing 1,150 kg net of material.
- Packaging of Boards
We recommend that lambdapor® micro STD molded parts are packed in opaque plastic film, as their exposure to direct sunlight can result in fading and distortion.
- Shipping
UN-Number 2211 Designation Polymeric beads, expandable
Class 9 Packing Group III ADR
Storage & Handling
- Storage
The octabins are not weather- or waterproof and must therefore not be exposed to outdoor conditions. It is not recommended to stack octabins more than one layer high. In case of double-stacking octabins under controlled conditions, the recommendations laid out in the document „Instructions for stacking sunpor octabins“ must be followed. In order to obtain the desired properties of lambdapor®micro STD, the raw material should be stored below 20 °C and be processed within one month.