nanocomposite compositions, expandable articles obtained from nanocomposite compositions, thermoplastic polymer expanded extruded sheets, and processes for preparing thermoplastic polymer compositions, for mass preparation of thermoplastic polymer compositions and for producing expanded thermoplastic polymer extruded sheets

摘要

nanocomposite compositions, expandable articles obtained from nanocomposite compositions, thermoplastic polymer expanded extruded sheets, and processes for preparing thermoplastic polymer compositions, for preparing bulk thermoplastic polymer compositions and for producing expanded thermoplastic polymer extruded sheets are expandable thermoplastic polymer-based nanocomposite compositions comprising: a) a polymeric matrix produced by polymerizing a base comprising one or more polymerizable monomers; b) 1-10% by weight, calculated with respect to polymer (a), of a blowing agent comprised in the polymeric matrix; (c) 0,004-15% by weight, calculated with respect to polymer (a), of an athermic charge comprising nanoscale graphene plates having a thickness (orthogonal to the graphene sheet) of not more than 150 nm, an average size ( length, width or diameter) of no more than 10 micrometres and a surface area 50m2 / g.