1. Rheocord 300p + Mixer/Extruder Sensor = PolyLab System
Mixer sensors
Rheocord 300p
Single screw extruder sensors
Twin screw extruder sensor
Rotors
Feeding systems
Screws
Dies
Postex

2. PolyLab System

4. PolyLab System
Laboratory Mixers :

5. Laboratory Mixers measuring principle3 2
Shearing of a test sample
in a heated mixing chamber
with counter rotating rotors
Test results:
Torque
Melt temperature

6. Mixer - Rheogram
Temperature
Torque
Energy

7. Rotors for Rheomix mixers
Banbury rotors
Roller rotors
Cam rotors
Sigma rotors

8. Mixer Test

9. Influence of the mixer load on PVC fusion
Application
Influence of the mixer load on PVC fusion
m: 60 g

10. Influence of the mixer load on PVC fusion
Application
Influence of the mixer load on PVC fusion
m: 66 g

11. Change from Mixer to Extruder

12. Single Screw Extruders :
PolyLab System
Single Screw Extruders :

13. Rheomex single screw extruder
collars for heating and cooling
Feeding cooling
Sensor ports (2 standard, others optional)
Screw back-pressure sensor (optional)

14. Rheomex Application Extruders are generally used to:
transport material
plasticize
compress
homogenize
compound
vent
chemical reaction
building up pressure

15. Rheomex Application Measuring of process variables:
torque
melt temperature
melt pressure
mass flow
Optimizing of process parameters:
extruder speed
temperature profile
pressure
screw design

16. Screws for single screw extruders
Conical Core
Screw
Standard Metering
Screw
Short Metering
Screw
Venting Screw
Mixing Screw

17. Pressure built-up in a single screw extruder
barrel - length [L/D]
pressure P2 P3 P4 P1 P5 11
14,5
20,5
24,5

18. PolyLab System
Twin Screw Extruders :

19. Twin-screw extruders CTW100 and PTW25

20. Feeding of material into twin-screw extruders
Co-rotating
Counter-rotating

21. Rheomex CTW100p

22. Rheomex CTW100p

23. Screw geometries for CTW100p extruder
Venting screw
Intensive mixing screw
Standard screw

24. Rheomex CTW100p

25. Parallel twin-screw extruder Rheomex PTW Processing tasks - 1
Plasticising
Mixing
Homogenising
Cooking
Gelling
Degassing of momomers, oligomers, solvents etc.
Concentrating of polymer solutions
Modifying by incorporation of plasticizers, cross-linking agents, flame retardants, UV-stabilisers, etc.

26. Parallel twin-screw extruder Rheomex PTW Processing tasks - 2
Incorporation of fillers and reinforcing agents such as: wood flour, talc, glass fibres etc.
Alloying of polymers
Polycondensation, Polyaddition and Polymerization of polymers
Chemical reactions
Dispersing of pigments and additives
Breaking down of high molecular particles

27. Rheomex PTW16p

28. Hinged barrel for easy handling
Rheomex PTW16p
Hinged barrel for easy handling

29. flexible screw configuration
Rheomex PTW16p
flexible screw configuration

30. Rheomex PTW16p Applications: Compounding + Rheology
Degassing of i.e. solvents etc.
Modifying by incorporation of plasticizers, cross-linking agents, flame retardants, UV-stabilisers, etc.
Incorporation of fillers and reinforcing agents such as: wood flour, talc, glass fibres etc.
Breaking down of high molecular particles

31. Rheomex PTW16p Technical Specifications Screws:
Segmented, with slip-on elements, allowing variable configuration
Screw diameter: 16 mm
Corotating, intermeshing screws
Screw shafts:
Design: hexagonal
Material: Heat treated, abrasion resistant

32. Rheomex PTW16p
Screw elements:

33. Rheomex PTW24p

34. Rheomex PTW24p

35. Rheomex PTW24p – Advantages:
Extruder barrel: segmented and hinged
Segmented screw
Sidefeeding

36. Rheomex PTW25

37. Rheomex PTW25 with PolyLab System
Master
Slave
Heat-
exchanger
PolyLab System
Rheomex PTW25

38. Parallel twin-screw extruder Rheomex PTW25 Screw segments 1/3
Conveying elements:

39. Parallel twin-screw extruder Rheomex PTW25

40. 557- 5001 Rheomex PTW 25 x 20D Barrel segments: Feeding barrel 4D
Venting
Barrel segments:
Feeding barrel 4D
Closed barrel 6D
Open barrel 6D
Measuring barrel 4D
Application:
Melting of polymers
Venting

41. 557- 5031 Rheomex PTW 25 x 32D Production of Masterbatch
Side-feeding
(pigments)
Venting (vacuum)
Venting (atmosphere)
Feeding
(polymer)
Barrel segments:
Feeding barrel 4D
Closed barrel 6D
Combi barrel 4D
Closed barrel 4D
Open barrel 6D
Open barrel 4D
Measuring barrel 4D

42. Screw configuration Rheomex PTW25/38 For typical food extrusion
25/1/2
37.5/1/2
ZB-37.5
E-KB-25/LI
E-KB-37.5/LI
Screwtip
Dry-Blend
Liquids
Steam
Feeding
Mixing/Hydration
Cooking
Venting
Cooling

43. Masterbatch production
Vacuum
Premix
Atmosphere
Parallel twin-screw
Water bath
Pelletizer
Notes:

44. PolyLab System
Feeding systems :

45. interchangeable feeding tube
Metering Feeder
Motor with gearbox
Standard Hopper
Closure for Cleaning
glass window
interchangeable feeding tube
Metering screw
Extruder
Principle sketch:

46. Metering Feeder

47. Metering Feeder Application: Accurate dosing of powder
Accurate dosing of pellets
Starved feeding to enable venting
Starved feeding to reduce torque
Production of masterbatches
Feeding of parallel twinscrew extruders

48. Extruder Application :
PolyLab System
Extruder Application :

49. Cast film application Instruments: Rheocord 300p
Extruder (single- or twin-screw extruder)
Screws
Sheet & ribbon die
Sheet & ribbon take-off
Pressure sensor
(Screen package)
(OQT 512)
Application:
Small production of films
Testing the processabillity
Testing of additives
Testing and optimisation of processing conditions
Results:
Fish-eye testing
Pigment distribution
Surface quality
Tensile testing
Weathering

50. Sheet and Ribbon Die Die width: 25/50/100/150 mm
Die gap: adjustable (standard: mm)
fixed die gap on request
Max. temperature: 360°C
1 measuring port

51. Sheet and Ribbon Take Off
polished and temperable steel rollers
rubber rollers
circulator
waterbath
Motor
adjusting the gap
take-up roller

52. Cast film application
PVC sheets: good & bad

53. Cast film application

54. Blown film application
Instruments: Rheocord 300p Extruder (single- or twin-screw extruder) Screws Blown film die Cooling ring Blown film take-off Pressure sensor (Screen package) (OQT 512)
Application: small production of films Testing the processability of compounds Testing of additives Testing and optimisation of processing conditions
Results: Fish-eye testing Pigment distribution surface quality

55. 557- 3175 Blown Film Die Air Ring diameter 25mm (35mm)
Pin diameter 24mm (34mm)
Gap width mm
Measuring ports 2
Max. temperature 480°C
adjustable
die gap

56. PolyLab blown-film combination
PolyLab System with extruder
Blown film take-off

57. PolyLab blown-film combination

58. PolyLab blown film combination
With optical testing unit OQT
PolyLab System with extruder
Lightning Device
CCD-Camera
Blown film take off

59. Blown film take-off with built in camera system

60. OQT- Graphical display of defects

61. OQT- Graphical display of the data and defects

62. OQT- Graphical display of the data

63. Compounding Instruments: PolyLab RC300p Rheomex twin-screw extruder
extruder Screw(s)
Pressure sensor(s)
(Screen package)
Rod die (horizontal or vertical) or Multistrand die
Waterbath
Pelletizer
Test results:
Testing of the processability of polymer compounds
Testing of additives
Testing and optimisation of processing conditions
small production of masterbatches

64. Horizontal rod die
Application: Universal die for extrusion tests
manufacturing of polymer strands for the production of pellets.
Nozzles available from: 1mm - 6mm
Two sensor ports for pressure- and temperature-measurement

65. Vertical rod die
Application: Universal die for extrusion tests
manufacturing of polymer strands for the production of pellets.
Nozzles available from: 1mm - 6mm
Two sensor ports for pressure- and temperature-measurement

66. Multistrand die
Application: Universal die for extrusion tests with higher output
manufacturing of polymer strands for the production of pellets.
Strand diameter: 3 mm (others on request)

67. Compounding