Wang ZZ, Wu K, Hu Y (2008) Study on Flame Retardance of Co-Microencapsulated Ammonium Polyphosphate and Dipentaerythritol in Polypropylene. Polymer Engineering and Science 48(12), 2426-2431. [In English]

Web link: http://dx.doi.org/10.1002/pen.21198

Keywords:

thermal-decomposition behavior, fire retardancy, microcapsules, composites, combustion, fillers, eva

Abstract: Co-microencapsulated ammonium polyphosphate and dipentaerythritol [M(A&,D)] was prepared using a melamine-formaldehyde (MF) resin by in situ polymerization method, and characterized by XPS. The co-microencapsulation of ammonium polyphosphate and dipentaerythritol (DPER) leads to a great improvement in water solubility of the additives. The flame retardant effect of M(A&,D) in polypropylene (PP) is evaluated using limiting oxygen index (LOI) and UL 94 test, and the water resistance of the PP/M(A&,D) composites is also studied. The flame retardant properties and water resistance of the PP/M(A&,D) composites are much better than the ones of the PP/APP/DPER composites. Moreover, the thermal stability of the PP/M(A&,D) composites is improved compared with the PP/APP/DPER composites. POLYM. ENG. SCI., 48:2426-2431, 2008. (C) 2008 Society of Plastics Engineers