Crystallization behaviors and mechanical properties of poly(ethylene 2,6‐naphthalate)/multiwall carbon nanotube nanocomposites | Zendy

Kim Jun Young | Zendy; Han SangIl | Zendy; Kim Seong Hun | Zendy

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Crystallization behaviors and mechanical properties of poly(ethylene 2,6‐naphthalate)/multiwall carbon nanotube nanocomposites

Author(s) -

Kim Jun Young,

Han SangIl,

Kim Seong Hun

Publication year - 2007

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.20789

Subject(s) - materials science , nanocomposite , crystallization , carbon nanotube , nucleation , composite material , polymer , nanotube , polymer nanocomposite , chemical engineering , chemistry , organic chemistry , engineering

Carbon nanotube (CNT)‐reinforced poly(ethylene 2,6‐naphthalate) (PEN) nanocomposites were prepared by direct melt blending process in a twin‐screw extruder. There is significant dependence of the crystallization and melting behavior of PEN/CNT nanocomposites on CNT content and crystallization temperature. The incorporation of CNT may favor the formation of the β‐form crystals in PEN/CNT nanocomposites, and more CNT content amplified this effect. In this PEN/CNT nanocomposite system, the CNT promoted the nucleation and the growth with higher crystallization rate of PEN/CNT nanocomposites, and simultaneously reduced the fold surface free energy and the work required in folding polymer chains in the polymer nanocomposites. In addition, the incorporation of a very small quantity of CNT significantly improved the mechanical properties of PEN/CNT nanocomposites. POLYM. ENG. SCI., 47:1715–1723, 2007. © 2007 Society of Plastics Engineers

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