Graphene-modified polymeric foam and articles made thereof

An article made of graphene-modified polymeric foam comprising:

• a graphene-based cell modifier and at least a polyurethane resin in which said graphene-based cell modifier used as a filler is intermixed;
• the graphene-based cell modifier being a two-dimensional flake material with a thickness of from 0.34 nm to less than 5 nm and a diameter from 0.1 micron to less than 0.9 micron;
• and
• the graphene-based cell modifier being incorporated by infusing said graphene-based cell modifier in one or more of polyol precursors for the polyurethane resin, wherein the graphene-modified polymeric foam exhibits a flexural strength increase of from about 30% to about 100% relative to a comparable polymeric foam lacking the graphene-based cell modifier.

An article made of graphene-modified polymeric foam comprising:

• a graphene-based cell modifier and at least one polymer resin in which said graphene-based cell modifier used as a filler is intermixed, the at least one polymer resin having a cellular structure including a plurality of cells with an average size;
• the graphene-based cell modifier being a two-dimensional flake material with a thickness of from 0.34 nm to less than 5 nm and a diameter from 0.1 micron to less than 5 microns, the diameter of the graphene-based cell modifier being less than the average size of the cells, and having a surface area of 500 m2/g;
• and
• the graphene-based cell modifier being incorporated by infusing said graphene-based cell modifier in one or more of precursors for the polymer resin.

An article made of graphene-modified polymeric foam comprising:

• a graphene-based cell modifier and at least one polymer resin in which said graphene-based cell modifier used as a filler is intermixed, the at least one polymer resin having a cellular structure including a plurality of cells with an average size;
• the graphene-based cell modifier being a two-dimensional flake material with a thickness of from 0.34 nm to less than 5 nm and a diameter from 0.1 micron to less than 5 microns, the diameter of the graphene-based cell modifier being less than the average size of the cells, and having a surface area of 300 m2/g;
• and
• the graphene-based cell modifier being incorporated by infusing said graphene-based cell modifier in one or more of precursors for the polymer resin.