3THIRUMAL M, KHASTGIR D, SINGHA N K, et al. Effect of foam density on the properties of water blownrigid polyurethane foam [ J ]. J Appl Polym Sci, 2008, 108: 1810-1817.
4ZHANG M, ZHANG J W, CHEN S G, et al. Synthesisand fire properties of rigid polyurethane foams made from apolyol derived from melamine and cardanol [ J ]. Polym De- grad Stab, 2014, 110: 27-34.
5THIRUMAL M, KHASTGIR D, NANDO G B, et al. Halo- gen-free flame retardant PUF: Effect of melamine compoundson mechanical, thermal and flame retardant prop- erties [J]. Polym Degrad Stab, 2010, 95: 1138-1145.
6FAN Z H, HSIAO K T, ADVNAI S G. Experimental inves- tigation of dispersion during flow of multi-walled carbon nano- tube/polymer suspension in fibrous porous media [ J ]. Car- bon, 2004, 42: 871-876.
7CHATrOPADHYAY D K, WEBSTER D C. Thermal stability and flame retardancy of polyurethanes [ J ]. Prog Polym Sci, 2009, 34: 1068-1133.
8SEO W J, PARK J H, SUNG Y T, et al. Properties of wa- ter-blown rigid polyurethane foams withreactivity of raw mate- rials [J]. J Appl Polym Sci, 2004, 93: 2334-2342.
9PINTO U A, VISCONTE L L Y, GALLO J, et al. Flame retardancy in thermoplastic polyurethane elastomers (TPU) with mica and aluminum trihydrate (ATH) [ J ]. Polym Degrad Stab, 2000, 69: 257-260.
10YE L, MENG X Y, JI X, et al. Synthesis and character- ization of expandable graphite-poly (methylmethacrylate) composite particles and their application to flameretardation of rigid polyurethane foams [ J ]. Polym Degrad Stab, 2009, 94: 941-979.
