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When recycling plastics from in-house or post consumer waste there are inevitably quality fl uctuations which often limit the amount of recyclate in the end product. The solution lies in systematic upcycling, i.e. the combination of recycling and compounding.
This enables you to optimise the property profile with precision according to your requirements.
POLYTEC brings together all the benefits of recycling and compounding in one system for the first time. The proven, robust POLYTEC technology is used to turn recycling raw material (e.g. PP nonwoven, PE edge trim, PA fibres etc.) into a filtered melt which then goes directly to a co-rotating twin-screw extruder from POLYTEC. With its excellent mixing and gas removal properties, this part of the system can handle all compounding tasks.
Besides the dosing of a wide variety of additives, fillers and reinforcing agents can be admixed in doses that are higher than those previously possible with POLYTEC recycling systems.
Feeding 1 is automatic according to customer requirements.
Unit 2 the material is cut, mixed, heated, dried, degassed, densified and buffered.
Next, the tangentially connected extruder is fi lled continuously with hot, pre-compacted material. In the extruder screw 3 the material is plasticised, homogenised and then cleaned in the fully automatic self-cleaning filter 4.
The prepared and cleaned melt then goes via the melt pump 5 directly to the co-rotating, self-cleaning twin-screw extruder 6 from POLYTEC. With its excellent mixing and gas removal properties, this flexible part of the system can handle all compounding tasks.
Besides the dosing of a wide variety of additives, high amounts of fillers and reinforcing agents 7 can be admixed. In the degassing zone 8 the compounded melt is degassed and moves to the respective tool 9 (e.g. POLYTEC hot die face pelletising system).
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Mode |
Output capacity in kg/h* |
Remark |
|
PTC100-65 |
300 |
Examples of additives, fillers and reinforcing agents suitable for admixing |
|
PTC130-75 |
500 |
|
|
PTC185-95 |
800-1000 |
Depending on material properties of the polymer (moisture content, print, degree of contamination, etc.) type and properties of the filling/reinforcing agent and the degree of filling.
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