Polypropylene (PP) has been blended with polycarbonate (PC) in an attempt to improve processability and chemical resistance. Blends of PC-PP of various compositions were prepared in a twin screw extruder using various temperatures. The processability of PC-PP blends, studied by maximum torque in a Brabender Plasticorder and melt flow index, indicated that the processability of PC was improved by blending. The compatibility of PC-PP blend was studied using differential scanning calorimetry and dynamic mechanical analysis; it was observed that PC-PP blends were immiscible in all compositions. Chemical and solvent aging studies of the blends showed significant retention of mechanical properties (tensile strength) indicating that 90:10 PC-PP blends behave similarly to engineering thermoplastics.
Processability, compatibility, and effects of solvent aging on mechanical properties of polycarbonate-polypropylene blends
Verarbeitbarkeit, Verträglichkeit und Lösemittelwirkung auf mechanische Eigenschaften von Polycarbonat-Polypropylen-Blends
Plastics, Rubber and Composites Processing and Applications ; 26 , 1 ; 27-31
1997
5 Seiten, 9 Bilder, 3 Tabellen, 8 Quellen
Article (Journal)
English
Polycarbonat , Polypropylen , Gemisch , Doppelschneckenextruder , Temperaturabhängigkeit , Schmelzindex , Thermoanalyse , Reißlänge , Zugfestigkeit , Fließbruchmechanik , Chemikalienbeständigkeit , Mischbarkeit , Verarbeitungseigenschaft , Automobilindustrie , Mischungsplastifizierung , Drehmoment , Dualphasengefüge , Kraftstoffbeständigkeit
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