PEX-a0 pages

Crosslinked Polyethylene - PEX
System solution for the production of pipe grade PE

For the production of gas and water pipe systems it is
common to use Polyethylene with a high molecular
The MTI technology
weight, which is going to be crosslinked in order to

To mix the good flowing PE-chips (grain sizes up to

obtain a product being absolutely resistant against stress

500 µm) with up to 0.5 % fine powdery stabilizers and

cracking.

max. 0,5 % peroxide of low viscosity MTI Universal

Mostly peroxides are used as reagents to achieve the

Mixers model Uni tec® or Horizontal Mixers Type K have

required grade of crosslinking during the RAM extrusion

been well proven for many years. The type of machine is

with pressures exceeding 2000 bar. To attain this high

depending on the required batch size and feeding

quality the raw materials such as PE, additives and

method. Characteristic for these high performance

peroxides have to be mixed very gently in an initial step

mixers are shortest process times with minimum impact

of the process, avoiding high thermal loads and peak

on the raw materials resulting in an outstanding quality

temperatures. Subsequently a special mixing system is

of the final product.

required

to

diffuse

the

liquid

peroxide

very

homogeneously into the PE-grains.

MTI Mischtechnik International GmbH · Ohmstraße 8 · D-32758 Detmold
Tel. +49 (5231) 914 0 · Fax +49 (5321) 914 299 · info@mti-mixer.de · www.mti-mixer.de

07/2011