Methods to the Smooth Surface of Microcellular Foam in Injection Molding

摘要

The microcellular foam of injection molding may focus on two major forming mechanisms of surface roughness: broken bubble from free flow front, and sheared bubble in the interface between mold wall and melt. With these mechanisms, most of the injection molding methods to the smooth surface of microcellular foam can be better understood. The analyses and morphology results of microcellular foams are useful to select the correct methods to the smooth surface of microcellular foam in injection molding.