The use of POSS as synergist in intumescent recycled Poly(ethylene terephthalate)

Fire retarded poly(ethylene terephthalate) (PET) has been obtained by the incorporation of octamethyl polyhedral oligomeric silsesquioxane (OMPOSS) and Exolit OP950, a phosphinate-based compound, in recycled PET. The presence of Exolit OP950 only leads to intumescence explaining the improvement of the flame retardancy. The addition of OMPOSS leads to a synergistic effect considerably increasing the fire retarding performances of the polymer in terms of cone calorimetry and limiting oxygen index even if a small thermal stabilisation as well as a very poor dispersion of OMPOSS and OP950 into the matrix has been observed.

[1]  O. Manero,et al.  Production of nanocomposites of PET‐montmorillonite clay by an extrusion process , 2003 .

[2]  Takashi Kashiwagi,et al.  Flammability of polystyrene layered silicate (clay) nanocomposites: Carbonaceous char formation , 2002 .

[3]  A. Morgan Flame retarded polymer layered silicate nanocomposites: a review of commercial and open literature systems† , 2006 .

[4]  Alberto Frache,et al.  Polyhedral oligomeric silsesquioxanes (POSS) thermal degradation , 2006 .

[5]  Edward D. Weil,et al.  Flame retardancy of thermoplastic polyesters—a review of the recent literature , 2005 .

[6]  M. Cio,et al.  Volatile products of poly(ethylene terephthalate) thermal degradation in nitrogen atmosphere , 2000 .

[7]  Yu-Zhong Wang,et al.  A Novel Phosphorus‐Containing Poly(ethylene terephthalate) Nanocomposite with Both Flame Retardancy and Anti‐Dripping Effects , 2006 .

[8]  Takashi Kashiwagi,et al.  PA-6 clay nanocomposite hybrid as char forming agent in intumescent formulations , 2000 .

[9]  S. Bourbigot,et al.  Recent Advances for Intumescent Polymers , 2004 .

[10]  C. A. Wilkie,et al.  Fire Retardancy of Vinyl Ester Nanocomposites: Synergy with Phosphorus-Based Fire Retardants , 2005 .

[11]  G. Zaikov,et al.  Recent Advances in Flame Retardancy of Polymeric Materials (Materials, Applications, Industry Developments, Markets) , 1994, Engineering Plastics.

[12]  Jeong-Cheol Kim,et al.  Preparation of poly(ethylene terephthalate) nanocomposite fibers incorporating a thermally stable organoclay , 2006 .

[13]  S. Duquesne,et al.  Thermal and fire behaviour of ammonium polyphosphate/acrylic coated cotton/PESFR fabric , 2005 .

[14]  Sandra J. Tomczak,et al.  Developments in nanoscience: polyhedral oligomeric silsesquioxane (POSS)-polymers , 2004 .

[15]  S. Bourbigot,et al.  Polyurethane/clay and polyurethane/POSS nanocomposites as flame retarded coating for polyester and cotton fabrics , 2002 .

[16]  Li-sheng Wang,et al.  Synthesis, characterisation and flame retardance behaviour of poly(ethylene terephthalate) copolymer containing triaryl phosphine oxide , 2000 .

[17]  G. Camino,et al.  Metal functionalized POSS as fire retardants in polypropylene , 2006 .

[18]  M. Dzięcioł,et al.  Temperature and atmosphere influences on smoke composition during thermal degradation of poly(ethylene terephthalate) , 2001 .

[19]  J. Trzeszczyński,et al.  Studies of temperature influence on volatile thermal degradation products of poly(ethylene terephthalate) , 1998 .

[20]  C. A. Wilkie,et al.  Preparation and characterization of poly(ethylene terephthalate)/clay nanocomposites by melt blending using thermally stable surfactants† , 2006 .