Processing of bio-based and biodegradable products – Sustainable compounding with co-rotating twin screw extruders Presentation by Levin Batschauer at the 8th Biocomposites Conference Cologne

1. Processing of bio-based and biodegradable products –
Sustainable compounding with co-rotating twin screw extruders
Levin Batschauer
Sales Manager Chemical Applications
Coperion GmbH
8th Biocomposites Conference Cologne
14th & 15 th November 2019
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 1

2. 2012
Hillenbrand, Inc.
acquires
Coperion
2013
K-Tron becomes
Coperion K-Tron
Company history
Werner &
Pfleiderer
2007/2008
Realization of the
world‘s largest
plants for polyolefin
production
2001
Merger to
form the
Coperion
Group
Waeschle
1900
Foundation
Waeschle in
Germany
1955
Bulk materials
processing in the
plastics industry
1879
Foundation
Werner &
Pfleiderer in
Germany
1957
First ZSK twin
screw extruder
Company presentation I 2017 I
Page 2
2008
Brand consolidation/
merger to form Coperion
2010
Successful
launch of ZSK Mc
18
series
2012
PELL-TEC becomes
Coperion Pelletizing
Technology
2012
Integration of
Weicom in Coperion
O. Soder
1900
Foundation
O. Soder in
Switzerland
Monsell
1949
Foundation
Monsell in
USA
1972
World‘s first
digitally
controlled belt
feeder
1997
Acquisition of Hurricane
Pneumatic Conveying Inc.
2006
Acquisition of Premier
Pneumatics, Inc.
2007
Acquisition of Wuxi
Colormax Machinery Ltd.
2008
Introduction of unique
ActiFlow activator for
loss-in-weight feeders
1975
K-Tron acquires
O. Soder AG
(formerly Monsell)
1989
Introduces modular
feeders with Smart
Force Transducer
weighing

3. 2,500EMPLOYEES
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 3

4. 30LOCATIONS
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 4

5. materials handling
Hand in hand – we
master all process steps
in the treatment and
handling of bulk
materials. Quality is our
benchmark when
conveying, elutriating,
homogenizing, storing,
dosing, thermally treating
or packaging products.
service
Your success is our
success – already during
installation and
commissioning of a
machine or plant a service
team is on-site.
Maintenance, spare parts
service, service consulting,
training and modernization
– we use our experience
and competence to the
advantage of our
customers.
Business areas of Coperion
feeding & weighing
Coperion K-Tron
specializes in feeding and
weighing solutions for any
process – accurate down
to the last detail, able to
handle a variety of bulk
materials in
a variety of applications.
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 5
compounding &
extrusion
ZSK: three letters embody
modern processing
machinery and plant
design for compounding
technology. Our twin screw
compounders continually
set new standards in the
plastics, chemical and food
processing industries.

6. 10,000BULKMATERIALSHANDLING
PLANTSINSTALLED
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 6

7. 15,000COMPOUNDINGSYSTEMSINSTALLED
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 7

8. 20,000FEEDING SYSTEMS
INSTALLED
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 8

9. The Coperion Network
Headquarters
Coperion and Coperion K-Tron
companies and sites
plus over 150 representatives worldwide
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 9

10. MANUFAC-
TURING
SITES
Stuttgart, Germany Weingarten, Germany
New Delhi, India
Shanghai, China Pitman, USA Salina, USANiederlenz, Switzerland
Wytheville, USAFerrara, Italy Nanjing, China
Worldwide
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 10

11. 11.11.2019 Biodegradable polymersPage 11
Coperion Test Labs for Compounding & Extrusion
Key benefits
• World’s most extensive test labs for compounding and extrusion systems
• The latest Coperion and K-Tron developments are integrated into the test set-up
• Throughputs possible from 1 kg/h to 2 t/h
• Further test centers for material handling, feeding & conveying and food & pharma
LOCATIONS
• Stuttgart & Weingarten, Germany
• Sewell & Salina, USA
• Nanjing & Shanghai, China
• Niederlenz, Switzerland

12. Modular design for screw elements and kneading blocks Intermeshing screw profile
ZSK 125 MEGAvolume PLUS
Motor Gear Box Process PartClutch
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 12
ZSK co-rotating twin screw extruder
Machine example

13. Filling of biopolymers
Cooking extrusion of thermoplastic starch (TPS)
Blending of different biopolymers (e.g. Biopolymer with TPS)
Compounding of starch blends
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 13
ZSK co-rotating twin screw extruder
Typical processes with biodegradable polymers using ZSK Mc18

14. Atmospheric
venting
Vacuum
degassingStarch
Melting
Mixing Venting Dispersion Degassing
Pressure
built-up
forming
Feed-in
conveying
Gelatinization
„cooking“
Unit operations:
Die
Plasticizer
Pellets/ powders
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 14
ZSK co-rotating twin screw extruder
Schematic process zones

15. ZSK co-rotating twin screw extruder
Simulation of the melting zones

16. 1. Starch (e.g. corn, potato, sugar cane etc.)
2. Polymer (e.g. PBAT, PBS, etc.)
3. Plasticizer (e.g. Glycerol, Sorbitol, etc.)
4. Atmospheric venting
5. Vacuum degassing
6. Pelletizing system
(Strand pelletizer/Underwater pelletizer)
6
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 16
Process set-up
Compounding of starch blends (machine example)

17. 1. Biopolymer(s) / (Additives) / (Filler)
2. Filler (e.g. talc)*
3. ZS-B twin screw side feeder with FET*
4. Atmospheric venting*
1
2
3
4 5
* not required for blending process
5. Vacuum degassing
6. Pelletizer
(Strand pelletizer/Underwater pelletizer)
6
Coperion Processing of bio-based and biodegradable products – 14/10/2019 – Page 17
Process set-up
Filling and blending of biopolymers (machine example)

18. • Short residence time in the mixing process, reduced stress for the material
• High stability of product quality
• Very good degassing efficiency
• Self cleaning profile of the extruder process part
• Online monitoring of extrusion parameters
• Immediate quality check after start-up of the line possible
• Easy change of formulations within the production
Advantages of the co-rotating twin screw extruder ZSK

19. If you have further questions, please contact us at our booth at
the foyer or through:
Phone: +49 711 / 897 2678
levin.batschauer@coperion.com
www.coperion.com
Contact information

20. Sustainable compounding with
co-rotating twin screw extruders