Thermal degradation of urethane modified polyisocyanurate foams based on aliphatic and aromatic polyester polyol
作者： E. Dominguez-Rosado , J.J. Liggat , C.E. Snape , B. Eling , J. Pichtel
DOI: 10.1016/S0141-3910(02)00086-1
关键词: Polyester 、 Isocyanate 、 Thermogravimetric analysis 、 Polyol 、 Polyurethane 、 Flammability 、 Char 、 Organic chemistry 、 Polyisocyanurate 、 Materials science 、 Materials Chemistry 、 Mechanics of Materials 、 Polymers and Plastics 、 Condensed matter physics
摘要: Combustion of polyurethane foams releases toxic gaseous products. Therefore, decreasing the flammability is practical significance to public health and environment. The reported study investigated thermal stability urethane modified polyisocyanurate based on presence aromatic, aliphatic polyester polyol polyether moieties. Thermogravimetric analysis differential scanning calorimetry demonstrated that foam containing lowest isocyanate index (220) molecular mass (200) was most flammable (35% char residue). Furthermore, which contained a high (2000) (460) experienced fire performance (45% residue) similar those aromatic (41 44% residue respectively).
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