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Clay intercalation and influence on flammability and crystallization behaviors of POE‐based nanocomposites
Author(s) -
Lu Hongdian,
Hu Yuan,
Li Ming,
Song Lei
Publication year - 2008
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20429
Subject(s) - materials science , differential scanning calorimetry , nanocomposite , montmorillonite , exfoliation joint , cone calorimeter , crystallization , intercalation (chemistry) , nucleation , maleic anhydride , composite material , chemical engineering , copolymer , polymer chemistry , polymer , pyrolysis , organic chemistry , chemistry , nanotechnology , graphene , char , physics , engineering , thermodynamics
Abstract Ethylene‐octene copolymer (POE)‐based nanocomposites were prepared from POE or maleic anhydride grafted POE with organo‐modified montmorillonite (OMT) using melt blending technique. Their morphology, flammability, and crystallization behavior were investigated by X‐ray diffraction (XRD), transmission electron microscopy (TEM), cone calorimeter, and differential scanning calorimetry (DSC). XRD and TEM studies confirmed the intercalation of clay layers within the POE matrix whereas the exfoliation throughout the maleated POE matrix. Cone calorimetry results exhibited that the reduction in heat release rate of exfoliated maleated‐POE/OMT nanocomposite was greater than that of intercalated POE/OMT nanocomposite. The DSC results suggested that the nonisothermal kinetics crystallization of the exfoliated nanocomposite corresponded to tridimensional growth with heterogeneous nucleation. POLYM. COMPOS., 2008. © 2008 Society of Plastics Engineers