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DOE OSTI · 1410293

Nanocellular foam with solid flame retardant

Chen, Liang·Kelly-Rowley, Anne M.·Bunker, Shana P.·Costeux, Stephane
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Abstract

Prepare nanofoam by (a) providing an aqueous solution of a flame retardant dissolved in an aqueous solvent, wherein the flame retardant is a solid at 23.degree. C. and 101 kiloPascals pressure when in neat form; (b) providing a fluid polymer composition selected from a solution of polymer dissolved in a water-miscible solvent or a latex of polymer particles in a continuous aqueous phase; (c) mixing the aqueous solution of flame retardant with the fluid polymer composition to form a mixture; (d) removing water and, if present, solvent from the mixture to produce a polymeric composition having less than 74 weight-percent flame retardant based on total polymeric composition weight; (e) compound the polymeric composition with a matrix polymer to form a matrix polymer composition; and (f) foam the matrix polymer composition into nanofoam having a porosity of at least 60 percent.

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36 MATERIALS SCIENCE37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

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Chen, Liang, Kelly-Rowley, Anne M., Bunker, Shana P., Costeux, Stephane. 2017-11-21. Nanocellular foam with solid flame retardant. https://www.osti.gov/biblio/1410293

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36 MATERIALS SCIENCE↗