Study on the structure and properties of cyanate ester/bentonite nanocomposites | Zendy

Feng Yu | Zendy; Fang Zhengping | Zendy; Mao Wei | Zendy; Gu Aijuan | Zendy

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Study on the structure and properties of cyanate ester/bentonite nanocomposites

Author(s) -

Feng Yu,

Fang Zhengping,

Mao Wei,

Gu Aijuan

Publication year - 2005

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.21470

Subject(s) - nanocomposite , thermogravimetric analysis , thermal stability , bentonite , materials science , scanning electron microscope , cyanate ester , transmission electron microscopy , toughness , chemical engineering , organoclay , polymer chemistry , composite material , nuclear chemistry , chemistry , nanotechnology , epoxy , engineering

Cyanate ester (CE)/bentonite (BT) nanocomposites were prepared by melt blending of CE with NH 4 + ‐BT. The nanostructure of CE/BT nanocomposites was studied by X‐ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). It was found that partially intercalated and partially exfoliated structures coexisted in CE/BT nanocomposites containing 2.5 wt % BT with respect to that of bulk CE. Below 2.5 wt % BT content, a totally exfoliated and disordered structure was formed in the nanocomposites. The exfoliated BT enhanced the toughness of CE/BT nanocomposites. The impact strength showed a maximum of 7.1kJ/m 2 at 1 wt % BT, compared to 3.8kJ/m 2 of pure CE. Furthermore, results of thermogravimetric analysis (TGA) suggest that CE/BT nanocomposites have higher thermal stability. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 632–637, 2005

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