Experimental Setup Design for Processing Functionally Graded Cellular Composites in Rapid Rotational Foam Molding

摘要

This paper presents a new manufacturing process for producing functionally graded foam for rapid rotational foam molded composites (RRFM).A new experimental setup incorporates continuous foaming operation using a physical blowing agent (PBA) and a chemical blowing agent (CBA) to deliberately generate a foamed core with varying quality based on preferred direction or orientation.Carbon dioxide will be used as the PBA to produce ultra-fine cellular foam.This novel process utilizes a static mixers to create a single phase solution before foam injection phase.In the co-extrusion operation,one extruder will be used for CBA-based fine cell low density foam production and the other for PBA-based ultra-low density polymeric foaming operation.