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Effect of functionalized SWCNTs on microstructure of PP‐ g ‐MA/OMMT/f‐SWCNTs nanocomposite
Author(s) -
Gao Yao,
Wang Yong,
Shi Jing,
Zhu Shibu,
Bao Yanling,
Bai Hongwei,
Li Yanli
Publication year - 2009
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.29304
Subject(s) - nanocomposite , materials science , differential scanning calorimetry , carbon nanotube , montmorillonite , microstructure , crystallization , ternary operation , scanning electron microscope , maleic anhydride , polymer , chemical engineering , composite material , copolymer , physics , computer science , engineering , thermodynamics , programming language
The aim of this work was to study the effect of functionalized single‐walled carbon nanotubes (f‐SWCNTs) on the microstructure of PP‐ g ‐MA/organic modified montmorillonite (OMMT)/f‐SWCNTs ternary nanocomposite. Pristine SWCNTs were chemically modified by maleic anhydride to improve the interaction between PP‐ g ‐MA and nanotubes. The dispersion states of OMMT in the different nanocomposites were investigated by wide angle X‐ray diffraction. The morphologies of the nanocomposites were characterized by scanning electron microscopy. Crystallization behaviors of nanocomposites were studied through differential scanning calorimetry and polarizing optical microscopy. Different than the PP‐ g ‐MA/OMMT binary nanocomposite, in which the OMMT is mainly in an exfoliated state, the ternary PP‐ g ‐MA/OMMT/f‐SWCNTs nanocomposite exhibits mostly intercalated OMMT. Furthermore, in the ternary nanocomposite, the crystallization of polymer is mainly induced by f‐SWCNTs rather than by OMMT. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009