Effect of functionalized nanosilica on the mechanical, dynamic‐mechanical, and morphological performance of polycarbonate/nanosilica nanocomposites | Zendy

Biswal Manoranjan | Zendy; Mohanty Smita | Zendy; Nayak Sanjay K. | Zendy; Kumar P. Sudheesh | Zendy

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Effect of functionalized nanosilica on the mechanical, dynamic‐mechanical, and morphological performance of polycarbonate/nanosilica nanocomposites

Author(s) -

Biswal Manoranjan,

Mohanty Smita,

Nayak Sanjay K.,

Kumar P. Sudheesh

Publication year - 2013

Publication title -

polymer engineering and science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.503

H-Index - 111

eISSN - 1548-2634

pISSN - 0032-3888

DOI - 10.1002/pen.23388

Subject(s) - materials science , dynamic mechanical analysis , polycarbonate , nanocomposite , thermogravimetric analysis , composite material , thermal stability , limiting oxygen index , scanning electron microscope , dynamic modulus , polymer , chemical engineering , char , pyrolysis , engineering

Polycarbonate (PC)/nanosilica (nSiO 2 ) nanocomposites were prepared by melt‐blending technique, in which surfactants are used to enhance the interfacial adhesion between nSiO 2 and polymer matrix. Mechanical properties demonstrate increased Young's modulus and yield strength of modified PC/nSiO 2 nanocomposites when compared with PC. Increased compatibility further indicates an effective increase in thermal stability as observed from thermogravimetric analysis. Dynamic mechanical analysis point out a reduction in T g value with increased storage modulus. The flammability characteristics of PC/nSiO 2 nanocomposites were evaluated using limiting oxygen index, whereas the morphological properties are characterized by wide‐angle X‐ray diffraction and scanning electron microscopy. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers

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