Abstract
This work deals with the material parameters of bulk solids in the solid conveying zone. New measurements show that the coefficient of friction of polypropylene-Homopolymer (PP-H) bulk material is clearly dependent on the frictional distance. Furthermore, a new mathematical model for the bulk density regarding the pressure and the temperature is presented. This model considers the melting point and the pvT-data and needs only three parameters to approximate the bulk density depending on pressure and temperature. The model fits experimental data from room temperature up to the melting point. There is a smooth crossover to the pvT-data at the melting point. These are clear advantages compared to existing models. The same approach approximates the pressure anisotropy sufficiently as well.
| Original language | English |
|---|---|
| Title of host publication | Conference Paper: PPS2017, Polymer Processing Society Dresden |
| Number of pages | 5 |
| Publication status | Published - Jun 2017 |
Fields of science
- 205 Materials Engineering
- 205011 Polymer engineering
- 102009 Computer simulation
- 102033 Data mining
- 104018 Polymer chemistry
- 205012 Polymer processing
- 104019 Polymer sciences
JKU Focus areas
- Nano-, Bio- and Polymer-Systems: From Structure to Function
- Engineering and Natural Sciences (in general)