Description: Polyurethane foam is produced by mixing two liquids, a polyether polyol and a polyfunctional isocyanate. A rigid foam is produced which is many times larger than the original volume.

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Source: Shakhashiri, B.Z. Chemical Demonstrations: A Handbook for Teachers of Chemistry

Year or vol: 1 page: 216

Keywords: Polymers, Polyurethane, Foam, Rigid, Polyol