硬质聚氯乙烯低发泡挤出过程研究(1)──配方设计与研究

Study on Structural Foamed R-PVC Extrusion Procession (1)──the Study and Design of the Formulation

研究了主要配方组分对硬质PVC低发泡挤出过程稳定性的影响，设计并筛选出制品密度ρ为0．8g／cm3的实用硬质PVC低发泡挤出制品配方。

The effects of the ingredients in the formulation on the structural foamed R-PVC extrusion stability were studied. A formulation was designed and chosen with which a structuralfoamed semi-rigid product could be produced. The density of the semi-rigid product wasabout 0. 8g/cm3.