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Investigation Into Poly(propylene)/Montmorillonite/Calcium Carbonate Nanocomposites
Author(s) -
Tang Yong,
Hu Yuan,
Zhang Rui,
Wang Zhengzhou,
Gui Zhou,
Chen Zuyao,
Fan Weicheng
Publication year - 2004
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200300157
Subject(s) - montmorillonite , materials science , nanocomposite , thermogravimetric analysis , calcium carbonate , thermal stability , composite material , cone calorimeter , chemical engineering , propylene carbonate , pyrolysis , chemistry , engineering , electrode , electrochemistry , char
Summary: A novel method was used to prepare poly(propylene)/montmorillonite/calcium carbonate nanocomposites by melt‐mixing, using pristine montmorillonite (MMT), hexadecyltrimethylammonium bromide (C16), calcium carbonate (CaCO 3 ) and a matrix in a twin‐screw extruder. Two different sizes of calcium carbonate were used (nanosized CaCO 3 and micron‐sized CaCO 3 , the average sizes being 60 nm and 12 μm respectively). The nanocomposite structure was evidenced using X‐ray diffraction (XRD), transmission electron microscopy (TEM) and high resolution electronic microscopy (HREM). Tensile tests and Izod notch impact tests suggested that the incorporation of nanosized CaCO 3 into PP/montmorillonite nanocomposites increased the mechanical properties of the composites, but the improvement in the micro‐sized CaCO 3 ‐filled PP/montmorillonite nanocomposites was found to be minimal. The thermal stability and flammability properties were characterized by thermogravimetric analysis (TGA) and a cone calorimeter respectively.