Our Compounding Technology

Our Compounding Technology :

The extrusion potential is made up of various technologies: single-screw extruders, twin-screw extruders, and buss co-kneaders.

This atypical diversity of extruders allows Polytechs to create a wide range of compounds and masterbatches from various polymer supports. One of our special features is the extrusion and transformation of heat-sensitive products: inflating agents, ATH (Alumine Trihydrate), expansion agents (endothermic or exothermic), etc.

Polytechs also offers the possibility of carrying out the compaction of masterbatchs by using the extrusion process.


Addition of liquid masterbatchs

We have at our disposal a wide range of pumps installed on weight-loss systems which allow us to inject any kind of liquid, regardless of its viscosity.

Our proportioning ranges from 0.5% to 70% of liquid masterbatchs, depending on the formulations found in the technical specifications.

Single-screw extruders :

These versatile lines can produce a wide range of products. They can all be equipped with a CTM (Cavity Transfer Mixer)-type kneading system.  This system allows very different viscosity, lubricant, and even incompatible masterbatchs or resins to be mixed and quickly dispersed. Pelletizing is done either underwater or by strands.

Twin-screw extruders :

Polytechs also have three co-rotative twin-screw extruders.

Just as it is for the Buss lines, these machines have tools that can feed and grind a wide range of plastic materials which can include liquid masterbatchs.

The cutting system can also be adapted to meet our customers' needs.

BUSS Co-Kneader :

Polytechs has six Buss production lines designed in such a way as to meet all types of extrusion requests. Our metering system can supply a wide range of materials such as elastomer blocks, pellets of all sizes, liquids, and powders with various particle sizes.

Some very flexible pelletizing systems (BUSS hot face, underwater and strands) allow us to produce pellets from any type of polymer according to the technical specifications defined with our customers.

These machines are specifically adapted for the compounding of temperature-sensitive materials such as inflating agents, Zero-Halogen flame retarders, reactive silanes, etc.