Premium
Synergistic effects of cerium phosphate and intumescent flame retardant on EPDM/PP composites
Author(s) -
Qiao Zhihua,
Tai Qilong,
Song Lei,
Hu Yuan,
Lv Pin,
Jie Ganxin,
Huang Wei,
Fu Yi,
Zhang Deqing
Publication year - 2011
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.1808
Subject(s) - intumescent , materials science , limiting oxygen index , fire retardant , ammonium polyphosphate , pentaerythritol , composite material , polypropylene , fourier transform infrared spectroscopy , epdm rubber , thermal stability , elastomer , chemical engineering , natural rubber , char , pyrolysis , engineering
An intumescent flame retardant system composed of ammonium polyphosphate (APP) and pentaerythritol (PER) was used for flame retarding ethylene–propylene–diene‐modified elastomer (EPDM)/polypropylene (PP) blends. Cerium phosphate (CeP) was synthesized and the effect on flame retardancy and thermal stability of EPDM/PP composites based on intumescent flame retardant (IFR) were studied by limiting oxygen index (LOI), UL‐94, and thermogravimetic analysis (TGA), respectively. Scanning electron microscopy (SEM) and Fourier transform infrared spectrometry (FTIR) were used to analyze the morphological structure and the component of the residue chars formed from the EPDM/PP composites, and the mechanical properties of the materials were also studied. The addition of CeP to the EPDM/PP/APP/PER composites gives better flame retardancy than that of EPDM/PP/APP/PER composites. TGA and RT‐FTIR studies indicated that an interaction occurs among APP, PER, and EPDM/PP. The incorporation of CeP improved the mechanical properties of the materials. Copyright © 2010 John Wiley & Sons, Ltd.