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A study of the novel intumescent flame‐retarded PP/EPDM copolymer blends
Author(s) -
Zhou Shun,
Wang Zhengzhou,
Gui Zhou,
Hu Yuan
Publication year - 2008
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.27727
Subject(s) - limiting oxygen index , intumescent , materials science , pentaerythritol , copolymer , polypropylene , thermogravimetric analysis , composite material , epdm rubber , fourier transform infrared spectroscopy , fire retardant , polymer chemistry , ethylene propylene rubber , flammability , chemical engineering , natural rubber , polymer , combustion , chemistry , organic chemistry , char , engineering
Flammability of polypropylene/ethylene–propylene‐diene copolymer (PP/EPDM) filled with melamine phosphate (MP) and pentaerythritol phosphate (PEPA) was studied by limiting oxygen index (LOI), UL 94, and cone calorimetry. The thermal degradation of the composites was investigated using thermogravimetric analysis (TG) and real‐time Fourier transform infrared spectrum (RT‐FTIR), and the mechanical properties of the materials were also studied. It had been found that the PP/EPDM/PEPA/MP composites (PEPM series) showed better flame retardancy than that of the PP/EPDM composites containing MP or PEPA. TG and RT‐FTIR studies indicated that the interaction occurs among MP, PEPA, and PP/EPDM. The incorporation of the flame retardants deteriorated the mechanical properties of the materials. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008