Purpose
& Overview
This seminar focuses on the interactions between
raw materials, hardware configurations and operating
conditions for intermeshing, co-rotating twin-screw
extruders. Emphasis is on understanding how twin-screws
create properties, with the goal of producing
high-quality resin at high throughput and low
cost. Attendees are reminded that the primary
goal for compounding applications is to produce
properties, not pellets. This no-nonsense approach
works well for all users of twin-screw extruders,
regardless of the application or industry.
Who
Should Attend
Process engineers, supervisors and machine operators
from both manufacturing and research environments
will benefit from this practical approach to twin-screw
extrusion, as will scientists involved in polymer
product development. This seminar is targeted
for process development and optimization (e.g.
versus formulation development).
Instructor:
Adam
Dreiblatt
Seminar
Content
Twin-Screw Extruder
Design Criteria
• Influence of extruder geometry on mixing,
pressure generation, mass transfer and residence
time
• Co-rotating, counter-rotating, intermeshing,
and non-intermeshing (focus is on co-rotating)
Process
Design
• Process flexibility, modularity, unit
operations
• Starve feeding, downstream feeding
• Process variables, interactions
Screw
Design Fundamentals
• Functional description of screw types
• Principles of screw design; solids conveying,
melting, heat transfer, mixing, venting, and pumping
Process
Examples
• Compounding : alloying, blending, fillers,
concentrates
• Devolatilization : Multistage venting
• Reactive processing : polymerization,
reactive compounding
Scale-Up
Criteria
• Volumetric scale-up
• Power limited scale-up
• Heat transfer scale-up
Process
Troubleshooting
• Time dependence of process disturbances;
consistency (within-lot), reproducibility (lot-to-lot)
| Seminar
Fees |
Before
4/23/08 |
After
4/23/08 |
| SPE
Member |
$675 |
$775 |
| Nonmember
|
$925 |
$925 |
Price
Schedule
All
forms of registration must contain payment, either
by credit card or check, otherwise the registration
will not be processed. Checks should be made
payable to SPE Seminars in U.S. funds.
Use
a separate registration form for each attendee.
If
you do not receive a confirmation for the seminar
prior to attending, please e-mail seminars@4spe.org
or call SPE at +1 203-740-5403 to verify your
registration.
