单词 | polyisocyanurate |
释义 | > as lemmaspolyisocyanurate polyisocyanurate n. Brit. /ˌpɒlɪʌɪsə(ʊ)sʌɪəˈnjʊəreɪt/ , /ˌpɒlɪʌɪsə(ʊ)sʌɪəˈnjʊərət/ , /ˌpɒlɪʌɪsə(ʊ)sʌɪəˈnjɔːreɪt/ , /ˌpɒlɪʌɪsə(ʊ)sʌɪəˈnjɔːrət/ , U.S. /ˌpɑliˌaɪsoʊˌsaɪəˈn(j)ʊˌreɪt/ , /ˌpɑliˌaɪsoʊˌsaɪəˈn(j)ʊrət/ a polymer of cyanuric acid (a cyclic molecule with the formula (CHNO)3), spec. as used for insulation purposes and as a fire retardant in a formulation which sets as rigid foam.ΚΠ 1972 Analyt. Chem. 44 183 (table) Polymer... Polyisocyanurate-modified polyurethane. 2002 Build It Nov. 88/2 Celotex insulation is made from polyisocyanurate (PiR) foam, which offers exceptional low thermal conductivity and reduced flammability, when compared to other cellular plastics. < as lemmas |
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