The effect of MFR on the mechanical properties of PP-R pipes resin was described.The influence of MFR change during melting extrusion were analyzed in emphasis from twin-screw extruder.

• 分析了PP-R(无规共聚聚丙烯)管材料MFR(熔体流动速率)的变化对力学性能的影响,着重通过双螺杆挤出机研究了PP-R管材料熔融挤出过程中影响MFR变化的因素。