Properties | Unit | Typical value | Test Method |
Polymer Properties | |||
Melt Flow Rate | dg/min | 1.9 | |
Density | kg/m3 | 921 | |
Optical Properties | |||
Gloss (45 ̊) | % | 53 | ASTM D 2457 |
Haze | % | 11 | ASTM D 1003A |
Clarity | mv | 28 | SABTEC method |
Formulation Level | |||
Slip | ppm | 500 E | |
Anti block | ppm | 2300 | |
Anti oxidant | |||
Processing aid (PPA | |||
Mechanical properties | |||
Impact strength | KJ/m | 18 | ASTM D 4272 |
Tear strength (TD) | KN/m | 22 | ISO 6383-2 |
Tear Strength (MD) | KN/m | 72 | ISO 6383-2 |
Tensile test | - | - | ISO R527-1 |
Yield stress (TD) | MPa | 11 | |
Yield stress (MD) | MPa | 12 | |
Tensile Stress at break (TD) | MPa | 28 | |
Tensile Stress at break (MD) | MPa | 32 | |
Strain at Break (TD) | % | >500 | |
Strain at Break (MD) | % | >100 | |
Modulus of Elasticity (TD) | MPa | 200 | |
Modulus of Elasticity (MD) | MPa | 200 | |
Coefficient of friction | - | 0.1 | ASTM D 1894 |
Blocking | g | <5 | DSM method |
Re-blocking | g | 30 | DSM method |
General information
DSM produces low density polyethylene by the tubular and the autoclave reactor processes.
As a result the product range covers a wide variety of densities and melt flow rates. Further it
includes a large number of grades with excellent optical properties which yield firm with a high
to very high clarity. Finally there is a wide variety of additives. For example, several grades
contain the slip agent erucamide. Films produced from these materials have excellent surface
properties and very low odour and taste levels, which is of advantage in e.g. food packaging.