A single screw extruder equipped with a specially designed slip die was used to study the rheological behavior of polystyrene/polymethyl methacrylate(PS/PMMA)blends.

• 利用单螺杆挤出机,配备特殊设计的狭缝模头,在不改变螺杆转速的情况下获得流经口模的不同流量,研究了聚苯乙烯(PS)/聚甲基丙烯酸甲酯(PMMA)共混体系的挤出流变行为。