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Preparation and properties of polypropylene filled with organo‐montmorillonite nanocomposites
Author(s) -
Wenyi Wang,
Xiaofei Zeng,
Guoquan Wang,
Jianfeng Chen
Publication year - 2006
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.23396
Subject(s) - nanocomposite , materials science , polypropylene , montmorillonite , composite material , thermal stability , differential scanning calorimetry , maleic anhydride , thermogravimetric analysis , ultimate tensile strength , flexural modulus , dynamic mechanical analysis , heat deflection temperature , polymer chemistry , polymer , izod impact strength test , chemical engineering , copolymer , physics , engineering , thermodynamics
Organo‐Montmorillonite (Org‐MMT)/maleic anhydride grafted polypropylene (PP‐ g ‐MAH)/polypropylene nanocomposites have been prepared by melt blending with twin‐screw extruder. The mechanical properties of the nanocomposites and the dispersion of Org‐MMT intercalated by the macromolecular chain were investigated by transmission electron microscopy and mechanical tests. The crystal properties of the nanocomposites have been tested by a differential scanning calorimeter. The thermal properties of the nanocomposites were investigated by thermo gravimetric analysis. The results show that not only the impact property but also the tensile property and the bending modulus of the system have been increased evidently by the added Org‐MMT. The Org‐MMT has been dispersed in the matrix in the nanometer scale. With the addition of the Org‐MMT, the melting point and the crystalling point of the nanocomposites increased; the total velocity of crystallization of the nanocomposites also increased. Thermal stability of the nanocomposites is increased by the filled Org‐MMT. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 2875–2880, 2006