Abstract
The microencapsulated red phosphorus (MRP) filled polypropylene (PP) composites were prepared using a twin-screw extruder. The effects of load and temperature on the extrudate swell behavior of the PP/MRP composite melts were investigated by means of a melt flow indexer. The test temperatures and loads were varied from 180 to 205°C and from 2.16 to 12.5 kg, respectively. The results showed that the die-swell ratio (B) of the composite melts increased roughly linearly with increasing load while decreased slightly with a rise of test temperature. The sensitivity of the die-swell ratio of the composite melts to load was significant. When the test temperature or load was constant, the values of the B of the composite melts decreased slightly with increasing MRP weight fraction. The findings can provide useful information for processing of these composites.
Original language | English |
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Pages (from-to) | 3497-3501 |
Number of pages | 5 |
Journal | Journal of Applied Polymer Science |
Volume | 129 |
Issue number | 6 |
DOIs | |
Publication status | Published - 15 Sept 2013 |
Keywords
- composites
- extrusion
- rheology
ASJC Scopus subject areas
- Materials Chemistry
- Polymers and Plastics
- Surfaces, Coatings and Films
- General Chemistry