| |
|
Low density Polyethylene LDPE |
High density Polyethylene HDPE |
Polypropylene PP |
| Physical properties of thermoplastics |
natural colour |
transparent |
translucent white |
transparent |
| state at 20ºC |
flexible |
flexible/rigid |
flexible/rigid |
| temperature-dependent form changes |
insignificant from +5ºC bis +90ºC |
insignificant from +5ºC bis +100ºC |
insignificant from +5ºC bis +120ºC short-term at +150¡C |
| specific weight at 20ºC |
approx. 0,92 |
approx. 0,95 |
approx. 0,905 |
| Shore hardness at 20ºC |
approx. 90 |
approx. 95 |
approx. 100 |
| tear strength at 20ºC |
approx. 10 N/mm2 |
approx. 20 N/mm2 |
approx. 30 N/mm2 |
| elongation at break at 20ºC |
approx. 500% |
approx. 500% |
approx. 650% |
| water absorption |
traces |
traces |
traces |
| diffusion |
hydrocarbons |
hydrocarbons |
hydrocarbons |
| This information only provides a general indication. |
| Chemical properties of thermoplastics |
resistant against |
non-oxidising alkalis, organic solvents excl. chlorinated
hydrocarbons it is advisable to carry out storage tests to test for diffusion
|
| non-resistant against |
oxidising acids, oils, fats, chlorinated hydrocarbons |
oxidising acids, chlorinated hydrocarbons |
see LDPE |
| This information only provides a general indication. |
| Applications |
container size |
0,001 - 1000 l |
0,001 - 3000 l |
0,01 - 120 l |
| type of contents |
cosmetic preparations, foodstuffs, chemicals |
see LDPE aromatic hydrocarbons, oils, fats |
see HDPE |
| transformation of contents |
none caused by the material itself, possibly due to diffusion |
| printing options |
screen |
screen |
screen |
| engraving suitability good |
good |
very good |
|
