Document Abstract
ANTEC Papers: 2004
Processing Strategies for Rotational Molding of Integral Skin Polyethylene Foams
This paper focuses on the study of the single-shot rotational foam molding technology for producing integral skin polyethylene foams. In this context, parametric studies over the mold rotational speed and in-mold temperature transition have been conducted. In conjunction with the utilization of the particle size difference between foamable and non-foamable resins, it has been found that increased mold rotational speeds can significantly improve the crucial separation of the time of formation of the skin layer from that of the foam layer. The proposed processing strategies secure the formation of a distinct layer of solid skin surrounding the high quality foamed polyethylene core.