When a 50/50 blend was melt-crystallized at 180 °C, the highly birefringent spherulite appeared at the early stage of crystallization (t < 20 min).
The dried blend was melt-spun to yield fibers which were processed into scaffolds and subsequently immersed into phosphate-buffered saline (PBS) to verify the degradation properties.
Some of the methods of blending are melt extrusion, higher shear processing, physical blending, and reactive blending.
All the blends were melt-blended using a co-rotating twin-screw extruder.
High-density polyethylene/Poly(butylene terephtalate) HDPE/PBT, HDPE/EVA-9/PBT and HDPE/(EVA-9-Bu2SnO)/PBT (in situ compatibilised blends) were melt blended in a twin-screw extruder, drawn at the die exit and cooled.
For the polymers produced with this two-step polymerization process, the LMW homopolymer and HMW copolymer blends and HMW homopolymer and LMW copolymer blends were melt miscible, despite the large viscosity differences of the pure components.
When all components of compatibilized blends are melt mixed together in a single-pass extrusion, the low-temperature toughness is improved; however, the room-temperature impact strength is reduced relative to uncompatibilized blends.
Herein, the aPP/iPP blends were melt processed through modified injection molding, i.e., oscillation shear injection molding (OSIM), in which an oscillation shear flow field was applied to induce self-reinforcing oriented iPP crystals.
Then, it was melt blended with PP-g-MA to generate a pre-intercalated composite (PIC).
Specifically, HX6000, with a melting temperature of 332°C, was melt blended with HX8000, with a melting temperature of 272°C.
