Bimodal cell structure of a layered silicate-thermoplastic olefin elastomere nanocomposite

A new approach in terms of cell size control and thus achieving a unique bimodal cell structure of microcellular foamed polymer-layered silicate nanocomposite in batch processing is reported. With progressive passes through the extruder, the TPO samples were foamed at batch process using supercritical CO2 at two different temperatures-165 °C (10.6 MPa), just below the melting temperature of either layered silicate-thermoplastic olefin elastomer …