Abstract
This paper focuses on melting process in polymer blends. A barrel sliding mechanism and a perturbation method were used to study melting behavior of polypropylene/polystyrene, PP/PS blends in a twin screw extruder (TSE). It was found most melting occurred in the transition from partially filled region to fully filled region. Numerical modeling was used to obtain heat transfer coefficient of a solid polymer pellet in another polymer melt. A good match between simulation and experiment was found after taking thermocouple dynamics into account. The deformation and breakup of PC drop in PE melt under shear flow was studied experimentally and numerically. Stress peaks at the interface explained the "erosion" mechanism found in the experiment and simulations.
Original language | English |
---|---|
Pages | 349-354 |
Number of pages | 6 |
State | Published - 2005 |
Externally published | Yes |
Event | Society of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 - Boston, MA, United States Duration: 1 May 2005 → 5 May 2005 |
Conference
Conference | Society of Plastics Engineers Annual Technical Conference 2005, ANTEC 2005 |
---|---|
Country/Territory | United States |
City | Boston, MA |
Period | 1/05/05 → 5/05/05 |
Keywords
- Deformation
- Heat transfer
- Melting
- Twin-screw extrusion