Compatibilization of intumescent flame retardant/polypropylene composites based on α‐methacrylic acid grafted polypropylene | Zendy

Ma ZhiLing | Zendy; Zhao Min | Zendy; Hu HanFang | Zendy; Ding HaiTao | Zendy; Zhang Jie | Zendy

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Compatibilization of intumescent flame retardant/polypropylene composites based on α‐methacrylic acid grafted polypropylene

Author(s) -

Ma ZhiLing,

Zhao Min,

Hu HanFang,

Ding HaiTao,

Zhang Jie

Publication year - 2002

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.10099

Subject(s) - intumescent , polypropylene , materials science , fire retardant , composite material , pentaerythritol , compatibilization , phosphoric acid , melamine , composite number , rheology , polymer chemistry , copolymer , polymer blend , polymer , metallurgy

A phosphoric acid–pentaerythritol–melamine copolymer was selected as an intumescent flame retardant (IFR). The influence of α‐methacrylic acid grafted polypropylene (PP‐ g ‐MAA) on the properties and compatibility of IFR/PP composites was studied. The results obtained from mechanical tests and scanning electron microscopy showed that PP‐ g ‐MAA was a true coupling agent for IFR/PP blends, but it did not change the necessary flame retardancy. The cocrystallization between bulk PP and PP segments of PP‐ g ‐MAA was proved by wide‐angle X‐ray diffraction analysis. A flow test showed that the flow behaviors of composites in the melt were those of a pseudoplastic liquid and it was very small for PP‐ g ‐MAA and affected the rheological behavior of the PP/IFR composite. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 3128–3132, 2002; DOI 10.1002/app.10099

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